Prolate grain; P/E: 1.49 (1.40–1.63); polar axis: 38.6 (36.1–42.4) µm; equatorial axis: 25.9 (23.4–28.4) µm; diporate; oval pore; pore height: 3.8 (2.1–4.7) µm; pore width: 5.5 (3.2–7.1) µm; rounded areoles distributed in two ranks (4–6 each) on either side of pore (see Plate 6: 77); areole diameter: 3.4 (2.9–3.9) µm; reticulate; exine thickness: 2.4 (1.9–3.1) µm.

Circular amb; prolate grain; P/E: 1.33 (1.22–1.47); polar axis: 43.0 (39.0–46.0) µm; equatorial axis: 32.4 (30.0– 34.0) µm; tricolpate; PAI: 0.19 (0.15–0.25); colpus length: 29.4 (23.8–34.1) µm; colpus width: 9.7 (6.0–15.0) µm; gaping colpi give grain its characteristic circular amb; striate; striae roughly parallel to polar axis; exine thickness: 1.3 (1.0–2.0) µm.

Spherical grain; maximum dimension: 24.9 (23.0–29.0) µm; lophate; 7 round lacunae on face; lacuna diameter: 7.9 (6.3–9.6) µm; inaperaturate.

Spherical grain; maximum dimension: 28.3 (26.0–30.0) µm; periporate; 62 (51–71) round pores; pore diameter: 2.8 (1.9–3.6) µm; pitted; exine thickness: 2.3 (1.7–2.7) µm.

Rounded triangular amb; subspheroidal grain; P/E: 1.09 (1.0–1.2); polar axis: 22.8 (21.0–26.0) µm; equatorial axis: 21.0 (20.0–23.0) µm; tricolporate; PAI: 0.12 (0.11–0.13); colpus length: 21.2 (18.6–24.0) µm; maximum colpus width: 1.1 (0.8–1.3) µm; lalongate pore constricted in center; pore height: 1.8 (1.3–2.4) µm; pore width: 7.7 (6.5– 8.8) µm; finely reticulate; exine thickness: 1.2 (1.0–1.6) µm.

Prolate grain; P/E: 1.29 (1.23–1.40); polar axis: 45.6 (43.3–48.6) µm; equatorial axis: 35.3 (32.4–38.3) µm; PAI: 0.13 (0.05–0.17); tricolporate; colpus length: 35.8 (35.4–40.7) µm; colpus width: 2.0 (1.1–3.0) µm; lalongate pore with irregular edges; pore height: 2.6 (1.5–3.6) µm; pore width: 12.4 (10.7–15.6) µm; reticulate; exine thickens along colpus (see Plate 19: 329); exine thickness: 2.3 (1.9– 2.9) µm.

Oval grains (individual grains); dispersed in tetrahedral tetrad; tetrad diameter: 233.9 (218.0–260.0) µm; individual grain length: 144.4 (130.9–158.8) µm; individual grain width: 87.0 (67.4–99.3) µm; monosulcate; sulcus length: 135.6 (127.9–143.3) µm; maximum sulcus width: 26.8 (21.5–36.0) µm; reticulate; exine thickness: 4.7 (3.5– 6.0) µm.

Prolate grain; P/E: 1.55 (1.15–1.9); polar axis: 30.7 (23.0–38.0) µm; equatorial axis: 20.0 (17.0–23.0) µm; tricolporate; colpus approximately length of grain; maximum colpus width: 0.9 (0.8–1.0) µm; lalongate pore; pore height: 2.6 (1.6–4.0) µm; pore width: 8.4 (4.5–13.2) µm; reticulate; exine thickness: 1.8 (1.3– 2.1) µm.

Prolate grain; P/E: 1.63 (1.48–1.71); polar axis: 35.0 (33.0–39.0) µm; equatorial axis: 21.6 (20.0–23.0) µm; tricolporate pollen; colpus approximately equal to length of grain; colpus width: 1.2 (1.0–2.0) µm; lalongate pore; pore height: 2.5 (1.7–3.4) µm; pore width: 9.1 (7.8– 10.0) µm; reticulate; exine thickness: 1.8 (1.0–2.0) µm.

Rounded triangular amb; subspheroidal grain; P/E: 1.06 (0.90–1.27); polar axis: 27.3 (26.1–28.8) µm; equatorial axis: 25.8 (24.0 –27.9) µm; tricolporate; PAI: 0.32 (0.29–0.40); colpus length: 17.5 (15.2–19.1) µm; maximum colpus width: 1.4 (1.1–1.7) µm; lalongate pore; pore height 3.8 (3.1–4.8) µm; pore width 7.2 (6.6–7.8) µm; clavate; clava height: 2.3 (1.8–2.7) µm; clava diameter decreases adjacent to colpi; exine thickness: 2.0 (1.8–2.3) µm.

Circular amb; subspheroidal grain; P/E: 0.97 (0.90–1.0); polar axis: 18.9 (18.0–21.1) µm; equatorial axis: 19.4 (17.9–21.3) µm; tri–tetracolporate – syncolporate; colpus approximately equal to length of grain; maximum colpus width: 2.7 (2.0–3.0) µm; slit–like pore usually obscured by sculpture (see Plate 13: 183); pore height: 0.6 (0.5–1.0) µm; pore width: 5.2 (3.7–6.0) µm; echinate; spine height: 3.2 (2.7–3.7) µm; spine width at base: 2.1 (1.7–3.0) µm; exine thickness: 2.9 (2.5–3.6) µm; tectate.

Trilobate amb; subspheroidal grain; P/E: 0.9 (0.8–0.9); polar axis: 24.9 (23.0–27.0) µm; equatorial axis: 26.9 (23.0–30.0) µm; tricolporate; colpus length: 4.8 (3.9–5.2) µm; maximum colpus width: 1.5 (1.1–2.1) µm; pore obscured by sculpture; echinate; spine height: 1.9 (1.5–2.3) µm; spine width at base: 2.1 (1.5–3.4) µm; exine thickness: 1.9 (1.5–2.2) µm; cavate; tectate.

Circular amb; subspheroidal to prolate grain; P/E: 1.1 (1.0–1.2); polar axis: 33.5 (28.0–39.0) µm; equatorial axis: 32.7 (26.0–38.0) µm; tricolporate; colpus length: 20 (16.0– 24.0) µm; maximum colpus width: 4.1 (3.0–5.0) µm; lalongate pore typically constricted in center (see Plate 13: 192) and ends taper to points; pore height: 2.8 (1.4–3.5) µm; pore width 11.1 (10.1–12.5) µm; echinate; spine height: 4.1 (3.5–4.9) spine width at base: 4.1 (3.0–5.0) µm; exine thickness: 2.5 (2.1–3.1) µm; tectate.

Rounded triangular amb; subspheroidal grain; P/E: 1.07 (0.96–1.33); polar axis: 26.9 (23.7–33.5) µm; equatorial axis: 25.4 (21.2–34.9) µm; tricolporate; PAI: 0.36 (0.31– 0.40); colpus length: 16.6 (14.0–20.0) µm; maximum colpus width: 1.4 (0.8–1.9) µm; lalongate pore typically constricted in center with ends tapering to points (see Plate 13: 194); pore height: 2.0 (1.4–2.9) µm; pore width: 10.0 (7.3– 11.9) µm; echinate; spine height: 5.5 (4.6–6.4) µm; spine width at base: 3.2 (2.3–4.1) µm; exine thickness: 2.7 (2.3– 3.0) µm; tectate.

Circular amb; subspheroidal grain; P/E: 0.99 (0.98– 1.04); polar axis: 33.7 (33.4–34.1) µm; equatorial axis: 34.8 (31.6–37.7) µm; tricolporate; colpus length: 9.8 (8.4– 11.1) µm; colpus width 1.4 (1.3–1.5) µm; lalongate pore; pore tapered to point at ends; pore height: 1.7 (1.4–1.9) µm; pore width: 9.9 (9.2–10.7) µm; echinate; spine height: 4.9 (4.5–5.7) µm; spine width at base: 3.4 (3.0–3.9) µm; exine thickness: 3.5 (2.9–4.0) µm; tectate.

Circular amb; subspheroidal grain; P/E: 1.03 (0.97– 1.08); polar axis: 46.1 (43.1–49.1) µm; equatorial axis: 44.5 (40.6–47.9) µm; tricolporate; colpus length: 14.1 (11.2–15.8) µm; maximum colpus width: 1.7 (1.1–2.0) µm; lalongate pore; pore tapered to point at ends; pore height: 2.1 (1.5–2.9) µm; pore width: 8.3 (6.1–11.6) µm; echinate; spine height: 7.7 (6.3–8.6) µm; spine width at base: 5.3 (4.6–6.0) µm; exine thickness: 4.4 (3.0–5.8) µm; tectate.

Circular amb; subspheroidal grain; P/E: 0.93 (0.89– 0.98); polar axis: 27.2 (25.5–32.8) µm; equatorial axis: 29.6 (28.6–33.4) µm; tricolporate; colpus length: 13.8 (12.0–16.4) µm; maximum colpus width: 3.5 (2.9–4.3) µm; lalongate pore constricted in center and tapered at ends; pore height: 1.5 (1.2–1.9) µm; pore width: 9.5 (7.8–10.7) µm; echinate; blunt spines; spine height: 6.4 (5.1–7.7) µm; spine width at base: 2.9 (2.2–3.9) µm; exine thickness: 3.1 (2.4–3.8) µm; tectate.

Circular amb; subspheroidal grain; P/E: 0.90 (0.80– 0.98); polar axis: 61.2 (55.0–65.0) µm; equatorial axis: 67.0 (60.0–72.0) µm; tricolporate; PAI: 0.49 (0.45– 0.54); colpus length: 31.8 (30.0–35.0) µm; maximum colpus width: 4.2 (3.4–4.9) µm; lalongate pore constricted in center and tapered at ends; pore height: 3.9 (2.6–4.8) µm; pore width: 13.3 (11.4–14.9) µm; echinate; spine height: 5.9 (5.4–6.4) µm; spine width at base: 10.3 (8.8–11.8) µm; exine thickness: 4.6 (4.0–5.0) µm; tectate.

Rounded triangular amb; subspheroidal grain; P/E: 0.98 (0.90–1.10); polar axis: 22.8 (21.0–25.0) µm; equatorial axis: 23.3 (22.0–27.0) µm; tricolporate; PAI: 0.35 (0.29–0.41); colpus approximately length of grain; maximum colpus width: 3.5 (3.0–4.0) µm; lalongate pore tapered at ends; pore height: 1.2 (0.7–1.4) µm; pore width 5.5 (4.5–6.2) µm; echinate; spine height: 2.5 (1.8–2.8) µm; spine width at base: 1.9 (1.5–3.1) µm; exine thickness: 2.3 (1.9–2.7) µm; cavate; tectate.

Rounded triangular amb; subspheroidal grain; P/E: 0.95 (0.90–1.2); polar axis: 20.0 (19.0–22.0) µm; equatorial axis: 20.8 (19.0–22.0) µm; tricolporate; colpus approximately length of grain; maximum colpus width: 3.3 (3.0– 4.0) µm; lalongate pore constricted at center and tapered at ends; pore height: 2.1 (1.7–2.4) µm; pore width: 4.8 (4.1– 5.6) µm; echinate; spine height: 2.3 (1.9–3.1) µm; spine width at base: 2.5 (2.0–3.0) µm; exine thickness: 3.5 (3.0– 4.0) µm; tectate.

Circular amb; subspheroidal grain; P/E: 1.04 (0.95– 1.08); polar axis: 23.2 (18.9–28.9) µm; equatorial axis: 23.1 (20.4–27.9) µm; tricolporate; colpus length: 18.9 (15.4–21.6) µm; maximum colpus width: 1.9 (1.1–2.8) µm; slit–like pore typically obscured by sculpture; pore height: 0.9 (0.6–1.3) µm; pore width: 4.4 (3.6–5.4) µm; echinate; spine height: 3.9 (3.2–4.7) µm; spine width at base: 2.8 (2.5–3.8) µm; exine thickness: 2.1 (1.5–2.9) µm; tectate.

Rounded triangular amb; subspheroidal grain; P/E: 0.96 (0.85–1.0) polar axis: 24.5 (23.9–25.0) µm; equatorial axis: 23.1 (20.8–24.6) µm; tricolporate pollen; PAI: 0.25 (0.21– 0.29); colpus length: 8.7 (7.6–9.3) µm; maximum colpus width: 1.1 (0.9–1.2) µm; lalongate pore tapered at ends; pore height: 1.6 (0.9–2.2) µm; pore width: 2.8 (1.7–4.0) µm; echinate; spine height: 2.7 (2.2–3.2) µm; spine width at base: 1.7 (1.3–1.9) µm; exine thickness: 2.1 (1.2–2.4) µm; tectate.

Triangular amb; subspheroidal grain; P/E: 1.09 (0.95– 1.14); polar axis: 28.9 (25.9–31.3) µm; equatorial axis: 29.7 (25.9–32.9) µm; tricolporate; colpus approximately length of grain; colpus width: 2.6 (2.4–2.7) µm; lalongate pore constricted in center and tapered at ends; pore typically is obscured by sculpture (see Plate 15: 230); pore height: 2.7 (2.6–2.8) µm; pore width: 7.1 (6.7–7.4) µm; echinate; spine height: 7.0 (6.6–7.8) µm; spine width at base: 5.4 (4.4–6.3) µm; exine thickness: 3.1 (2.2–3.9) µm; tectate.

Rounded triangular amb; subspheroidal grain; P/E: 1.0 (0.96–1.07); polar axis: 31.6 (28.9–35.2) µm; equatorial axis: 30.7 (27.6–33.6) µm; tricolporate; PAI: 0.30 (0.26– 0.36); colpus length: 18.4 (14.5–21.2) µm; maximum colpus width: 2.7 (2.3–2.9) µm; lalongate pore constricted in center and tapered at ends; pore height: 1.4 (1.1–1.7) µm; pore width: 10.4 (9.6–11.1) µm; echinate; spine height: 3.4 (2.8–4.7) µm; spine width at base: 4.3 (3.6–5.1) µm; exine thickness: 2.8 (2.4–3.7) µm; tectate.

Square grain; maximum dimension 42.6 (37.9–49.4) µm; lophate tricolpate; colpus length: 5.1 (5.0–5.2) µm; colpus width: 3.6 (3.1–4.1) µm; echinate; spine height: 2.0 (1.6–2.6) µm; spine width at base: 1.1 (0.7–1.4) µm; lacuna length: 7.9 (5.8–11.8) µm; lacuna width: 7.3 (6.4– 8.4) µm; 12–14 lacunae per grain; exine thickness: 4.3 (3.4–4.9) µm.

Rounded triangular to rounded square amb; subspheroidal grain; P/E: 1.06 (1.05–1.08); polar axis: 39.9 (36.9–42.0) µm; equatorial axis: 36.4 (34.1–39.3) µm; tri–tetracolporate; colpus length: 13.9 (12.8–15.1) µm; maximum colpus width: 2.1 (1.9–2.5) µm; lalongate pore tapered at ends; pore height: 1.7 (1.2–2.3) µm; pore width: 8.7 (7.8–10.6) µm; echinate; spine height: 4.8 (4.3–5.3) µm; spine width at base: 3.5 (2.7– 4.6) µm; exine thickness: 3.4 (2.7–4.6) µm; tectate.

Rounded triangular amb; subspheroidal to prolate grain; P/E: 1.09 (1.02–1.25); polar axis: 36.8 (35.5–39.5) µm; equatorial axis: 32.4 (29.5–36.2) µm; tricolporate; PAI: 0.29 (0.20–0.37); colpus length: 14.5 (9.7–18.1) µm; maximum colpus width: 2.0 (1.3–3.9) µm; lalongate pore constricted in center and tapered at ends; pore height: 1.7 (1.2– 2.2) µm; pore width: 12.5 (10.2–14.1) µm; echinate; spine height: 3.9 (3.1–4.7) µm; spine width at base: 4.7 (3.7–5.2) µm ; exine thickness: 2.3 (1.2–2.9) µm; tectate.

Rounded square amb; subspheroidal grain; P/E: 0.99 (0.87–1.07); polar axis: 26.1 (24.5–30.8) µm; equatorial axis: 26.4 (24.5–28.7) µm; tri–tetracolporate; colpus length: 10.8 (8.1–12.9) µm; maximum colpus width: 3.8 (2.9–4.5) µm; lalongate pore tapered at ends; pore height: 2.5 (1.9– 3.6) µm; pore width: 10.1 (8.6–11.4) µm; echinate; spine height: 4.4 (3.8–4.9) µm; spine width at base: 1.5 (1.2–2.1) µm; exine thickness: 2.8 (2.5–2.9) µm; tectate.

Spherical grain; maximum dimension: 29.5 (27.3–32.5) µm; lophate tricolpate; colpus length: 5.9 (5.4–7.2) µm; colpus width: 1.8 (1.4–2.3) µm; echinate; spine height: 2.1 (1.6–2.6) µm; spine width at base: 0.9 (0.7–1.1) µm; lacuna length: 5.6 (4.3–7.3) µm; lacuna width: 7.0 (5.4–9.1) µm; 8 lacunae on grain; exine thickness: 3.5 (2.6–4.1) µm.

Tetralobate amb; subspheroidal–prolate grain; P/E: 1.2 (1.08–1.37); polar axis: 24.3 (22.9–26.2) µm; equatorial axis: 20.3 (17.8–223.5) µm; stephanocolporoidate; PAI: 0.37 (0.32–0.47); irregular colpus margin; colpus length: 14.8 (12.7–16.8) µm; maximum colpus width: 1.3 (0.8– 1.7) µm; psilate; exine thickening at equator to form pore– like structure; exine thickness: 1.7 (1.1–2.2) µm.

Circular amb; subspheroidal grain; P/E: 1.13 (1.0–1.25); polar axis: 30.7 (26.0–32.0) µm; equatorial axis: 26.9 (24.0–30.0) µm; heterocolporate; colpus length: 19.3 (16.8– 21.9) µm; maximum colpus width: 1.3 (0.9–1.8) µm; pseudocolpus length: 17.3 (15.8–19.2) µm; maximum pseudocolpus width: 2.8 (1.9–3.7) µm; 4–5 pseudocolpi, round pore; pore height: 4.3 (3.1–5.7) µm; psilate; exine thickness: 1.4 (1.0–1.7) µm.

Rounded triangular amb; subspheroidal grain; P/E: 1.1 (0.95–1.12); polar axis: 18.7 (18.0–19.0) µm; equatorial axis: 17.9 (17.0–19.0) µm; tricolpate; PAI: 0.22 (0.20– 0.27) colpus approximately length of grain; maximum colpus width: 1.9 (1.3–2.5) µm; reticulate; heterobrochate; exine thickness: 1.9 (1.7–2.0) µm.

Spherical grain; maximum dimension: 25.3 (22.0–31.0) µm; tri–tetraporate; aspidate pore; pore height: 2.2 (1.8– 2.6) µm; pore width: 5.8 (4.3–7.9) µm; vestibulum height: 2.9 (2.5–3.1) µm; vestibulum width: 4.0 (3.3–4.6); reticulate often with striate appearance; exine thickness: 1.22 (0.98–1.80) µm.

Triangular amb; subspheroidal to prolate grain; P/E: 1.15 (1.0–1.35); polar axis: 25.3 (22.0–27.0) µm; equatorial axis: 22.0 (20.0–24.0) µm; tricolporate; colpus approximately length of grain; maximum colpus width: 6.8 (5.0– 8.0) µm; lalongate pore; pore height: 1.6 (1.2–2.3) µm; pore width: 5.6 (5.0–6.6) µm; reticulate; homobrochate; exine thickness: 0.9 (0.7–1.1) µm.

Circular amb; subspheroidal grain; P/E: 1.13 (1.02– 1.31); polar axis: 37.1 (34.7–39.6) µm; equatorial axis: 32.9 (26.4–35.8) µm; tricolporate; PAI: 0.31 (0.27–0.37); colpus length: 29.0 (26.6–32.2) µm; maximum colpus width: 2.1 (1.6–2.9) µm; lalongate pore; pore height: 3.6 (2.3–6.6) µm; pore width: 9.8 (6.5–13.4) µm; reticulate; exine thickness: 1.9 (1.5–2.5) µm.

Spherical grain; maximum dimension: 31.2 (28.9–32.6) µm; triporate; round pores; pore diameter: 2.6 (1.7–2.9) µm; vestibulum height: 3.3 (2.9–4.1) µm; vestibulum width: 9.0 (8.2–10.4); Os: 10.7 (9.5–11.9) µm; psilate; exine thickness: 1.9 (1.7–2.1) µm; exine does not thicken over vestibula.

Spherical grain; maximum dimension: 29.4 (27.7–32.3) µm; periporate; 54 (45–74) round pores; pore diameter: 2.3 (2.1–2.7) µm; micropitted; exine thickness: 1.6 (1.2–2.0) µm.

Hexalobate grain; subspheroidal to prolate; P/E: 1.22 (1.08–1.43); polar axis: 14.3 (13.5–15.5) µm; equatorial axis: 11.9 (9.9–13.2) µm; heterocolporate; colpus approximately length of grain; maximum colpus width: 0.8 (0.6– 1.0) µm; pseudocolpus approximately length of grain; maximum pseudocolpus width: 1.8 (1.4–2.0) µm; lalongate pore; pore constricted in center; pore height: 2.1 (1.5–2.8) µm; pore width: 3.8 (3.2–4.2) µm; psilate; exine thickness: 1.1 (0.7–1.5) µm.

Subspheroidal to prolate grain; P/E: 1.21 (1.10–1.40); polar axis: 24.4 (22.5–27.6) µm; equatorial axis: 20.3 (15.8–22.9) µm; tricolporate; colpus length: 16.8 (17.4– 21.8) µm; maximum colpus width: 1.2 (0.9–1.5) µm; oval pore; pore sometimes indistinct (see Plate 17, 268–269), however when present the pore extends laterally beyond colpus margins; finely pitted; exine thickness: 1.6 (1.2– 1.7) µm.

Spherical grain; maximum dimension: 100.1 (92.5–111.5) µm; periporate; 44 (38–54) round pores; pore diameter: 5.7 (2.5–7.0) µm; echinate; spine height; 9.5 (6.9–10.9) µm; spine width at base: 4.1 (3.8–4.3) µm; exine thickness: 5.5 (4.0–6.5) µm.

Spherical grain; maximum dimension: 101.4 (91.1–108.7) µm; periporate; 29 (20–36) round pores; pore diameter: 7.7 (7.1–8.2) µm; echinate; spine height: 10.5 (9.4–11.7) µm; spine width at base: 9.3 (8.3–10.5) µm; exine thickness: 4.9 (2.9–6.5) µm.

Rounded triangular amb; subspheroidal to oblate grain; P/E: 0.84 (0.76–0.90); polar axis: 35.8 (33.8–40.2) µm; equatorial axis: 42.4 (40.2–45.9) µm; tricolporate; colpus length: 24.7 (17.4–30.6) µm; maximum colpus width: 4.2 (3.5–4.5) µm; pore with irregular margin (see Plate 19: 333); pore height: 8.6 (4.7–12.5) µm; pore width: 7.6 (5.4– 9.5) µm; reticulate; heterobrochate; exine thickness: 2.6 (2.1–3.0) µm.

Rounded triangular amb; prolate grain; P/E: 1.34 (1.14– 1.56); polar axis: 21.7 (19.2–24.6) µm; equatorial axis: 16.2 (14.4–18.6) µm; tricolporate; colpus approximately length of grain; maximum colpus width: 1.2 (0.9–1.5) µm; lalongate pore; pore height: 1.7 (1.1–2.1) µm; pore width: 5.9 (4.2–7.9) µm; reticulate; homobrochate; exine thickness: 2.7 (2.0–3.0) µm.

Rounded triangular amb; subspheroidal to prolate grain; P/E: 1.21 (1.06–1.34); polar axis: 26.4 (23.4– 30.1) µm; equatorial axis: 20.9 (19.9–24.0) µm; tricolporate; colpus approximately length of grain; maximum colpus width: 1.3 (0.6–2.6) µm; lalongate pore; pore commonly constricted slightly in center (see Plate 18: 315); pore height: 2.4 (1.6–2.9) µm; pore length: 6.7 (5.9–7.9) µm; reticulate; homobrochate; exine thickness: 2.2 (2.0–2.4) µm.

Spherical grain; subspheroidal to prolate; P/E: 1.20 (1.10– 1.40); polar axis: 20.9 (19.0–23.0) µm; equatorial axis: 17.8 (16.0–20.0) µm; tri–tetracolporate; colpus length: 13.5 (11.8–16.7) µm; maximum colpus width: 1.0 (0.6– 1.3) µm; pore obscure and lalongate; pore height: 0.9 (0.8– 1.3) µm; pore length: 2.9 (2.2–3.6) µm; finely reticulate; exine thickness: 1.6 (1.3–1.9) µm.

Circular amb; subspheroidal grain; P/E: 0.98 (0.97– 1.00); polar axis: 35.3 (33.0–40.0) µm; equatorial axis: 33.7 (29.0–41.0) µm; tricolporate; colpus length: 28.8 (24.8–32.4) µm; maximum colpus width: 2.6 (2.0–3.0) µm; lalongate pore; in rare instances pores merge to form equatorial furrow; pore height: 2.6 (1.6–4.2) µm; pore length: 14.0 (11.3–19.5) µm; reticulate; exine thickness: 1.3 (1.2–1.4) µm.

Polyad; 8 grains per polyad; polyad diameter: 29.5 (27.5– 32.0) µm; individual grain length: 14.3 (13.4–15.1) µm; individual grain width: 10.0 (8.9–12.7) µm; psilate; exine thickness: 1.2 (1.0–1.4) µm.

Triangular amb; subspheroidal grain; P/E: 0.95 (0.89– 1.10); polar axis: 40.6 (36.5–45.5) µm; equatorial axis: 42.7 (35.5–51.0) µm; tricolporate; colpus length: 23.9 (20.6–29.6) µm; maximum colpus width: 5.4 (4.3–6.8) µm; oval pore; pore height: 6.9 (4.1–10.5) µm; pore width: 10.2 (7.6–12.8) µm; finely reticulate; exine thickness: 3.1 (2.5– 4.0) µm.

Circular amb; subspheroidal; P/E: 1.06 (0.99–1.03); polar axis: 39.1 (37.6–41.3) µm; equatorial axis: 32.1 (31.0– 33.0) µm; tricolporate; colpus length: 30.6 (27.8–33.2) µm; maximum colpus width: 6.2 (5.0–8.0) µm; round pore; pore diameter: 6.6 (5.9–7.3) µm; rugulate; exine thickness: 2.3 (2.0–3.0) µm.

Rounded triangular amb; subspheroidal grain; P/E: 1.15 (1.04–1.23); polar axis: 59.8 (55.3–65.5) µm; equatorial axis: 52.0 (48.0–55.2) µm; tricolporoidate; colpus length: 37.7 (34.2–43.4) µm; maximum colpus width: 2.3 (1.6–3.6) µm; pitted; exine thickness: 3.1 (2.7–3.8) µm; exine thicker adjacent to colpus (see Plate 16: 259).

Rounded triangular amb; subspheroidal grain; P/E: 0.94 (0.89–0.99); polar axis: 35.8 (33.8–38.9) µm; equatorial axis: 38.0 (34.1–41.8) µm; tricolporate; PAI: 0.49 (0.46– 0.52); colpus length: 21.2 (15.7–27.8) µm; maximum colpus width: 3.2 (2.6–3.9) µm; lalongate pore; pore height: 6.1 (6.1–6.3) µm; pore width: 11.5 (10.7–12.7) µm; rugulate; exine thickness: 2.0 (1.9–2.1) µm.

Triangular grain; maximum dimension: 50.2 (44.0–56.0) µm; triporate; round pore (see Plate 6: 93); pore diameter: 8.1 (6.9–10.9) µm; reticulate; heterobrochate; muri width: 2.3 (2.0–3.0) µm; lumina range: 8.3 (4.0–15.0) µm; exine thickness 1.1 (0.8–1.5) µm.

Circular amb; subspheroidal to prolate; P/E: 1.13 (0.99– 1.33); polar axis: 27.7 (25.3–31.6) µm; equatorial axis: 24.8 (21.2–28.0) µm; tricolpate–tricolporoidate; PAI: 0.33 (0.23–0.37); colpus length: 20.6 (17.9–24.1) µm; maximum colpus width: 1.9 (1.2–3.5) µm; scabrate; exine thickness: 2.3 (1.9–2.5) µm; exine thicker adjacent to colpus.

Rounded grain; maximum dimension: 24.7 (21.2–28.7) µm; stephanoporate; 4 annulate pores; pore oval to round; maximum pore dimension: 1.9 (1.2–2.5) µm; annulus thickness: 2.9 (2.6–3.5) µm; annulus with irregular margins (see Plate 7: 96); psilate with irregularly scattered scabrae; exine thickness 1.8 (1.3–2.1) µm.

Spherical grain; maximum dimension: 20.6 (18.0–25.0) µm; stephanoporate; 4–5 round pores; pore diameter: 2.4 (1.0–3.5) µm; rugulate; exine thickness: 2.4 (1.5–3.0) µm.

Polyad consisting of 16 grains, maximum dimension of polyad: 61.7 (52.8–74.5) µm; individual grain maximum dimension: 19.5 (17.5–22.6) µm; triporate, round pore, pore diameter: 2.5 (2.3–2.9) µm; reticulate; homobrochate; exine thickness: 3.2 (2.8–3.6) µm.

Spherical grain; subspheroidal; P/E: 0.93 (0.68–1.13); polar axis: 52.2 (40.0–60.0) µm; equatorial axis: 58.1 (53.0– 64.0) µm; polycolporoidate; 18–20 colpi; distance between colpi: 7.6 µm; psilate; exine thickness: 1.6 (1.0–3.0) µm.

Rounded triangular amb; subspheroidal to prolate grain; P/E: 1.17 (1.06–1.46); polar axis: 13.7 (12.3–16.7) µm; equatorial axis: 11.7 (11.4–12.0) µm; tricolporate; PAI: 0.31 (0.22–0.37); colpus length: 10.7 (8.2–12.8) µm; maximum colpus width: 1.9 (1.5–2.5) µm; round pore; pore diameter: 2.1 (1.5–3) µm; psilate; exine thickness: 1.3 (1.0–1.5) µm.

Rounded triangular amb; subspheroidal grain; P/E: 1.28 (1.27–1.29); polar axis: 32.7 (32.3–33.0); equatorial axis: 38.0 (35.0–40.0) µm; hetercolporate; 3 colpi and 3 pseudocolpi; colpus length: 29.1 (26.6–31.6) µm; maximum colpus width: 9.9 (7.0–13.0) µm; pore height: 9.5 (7.0–11.1) µm; pore width: 6.5 (5.8–6.8) µm; striate; striae parallel to polar axis; granulate colpus membrane; exine thickness: 2.5 (2.3–2.7) µm.

Spherical grain; maximum dimension: 95.7 (85.0–107.0) µm; periporate; 8–12 round pores (see Plate 8: 114); pore diameter: 4.9 (3.5–6.0) µm; echinate; spine height: 8.2 (7.5–10) µm; spine width at base: 7.9 (7.1–9.4) µm; exine thickness: 2.7 (2.0–4.0) µm; tectate.

Spherical grain; maximum dimension: 15.7 (12.0–17.8) µm; diporate; round pore; pore diameter: 1.9 (1.5–2.4) µm; psilate; exine thickness: 1.0 (0.8–1.2) µm.

Triangular grain; maximum dimension: 32.5 (29.5–35.5) µm; triporate; round pore; pore diameter: 3.0 (2.6–3.6) µm; vestibulum height: 4.7 (3.3–5.9) µm; vestibulum width: 7.8 (6.9–8.4) µm; granulations typically visible in vestibulum; Os: 9.2 (8.7–11.2) µm; psilate; exine thickness: 2.4 (2–2.7) µm.

Triangular grain; maximum dimension: 25.5 (23.0–27.5) µm; parasyncolporate; pore diameter: 1.6 (1.0–2.0) µm; psilate; exine thickness: 1.3 (1.0–1.6) µm.

Triangular grain; maximum dimension: 27.1 (22.5–31) µm; parasyncolporate; pore diameter: 1.5 (1.0–3.5) µm; exine thickness: 1.3 (1.0–1.5) µm; scabrate.

Oval grain; long axis: 62.2 (57.5–69.9) µm; short axis: 39.8 (33.8–43.7) µm; monosulcate; sulcus length: 50.1 (42.8– 54.2) µm; maximum sulcus width: 3.7 (2.6–4.7) µm; echinate; spine height: 5.2 (3.8–6.1) µm; spine width at base 1.6 (1.3–2.1) µm; echinate; exine thickness: 2.1 (1.6–2.7) µm.

Spherical to oval grain; maximum dimension: 31.8 (29.0– 37.0) µm; monosulcate; sulcus approximately length of grain; clavate, gemmate, and baculate; sculptural element height: 3.0 (1.9–3.4) µm; exine thickness: 1.4 (1.0–2.0) µm.

Rounded triangular grain (individual grain); maximum dimension (individual grain) 73.9 (64.8–82.2) µm; tetrahedral tetrad maximum dimension: 109.8 (102.1–114.5) µm; tricolporate; colpus length: 23.1 (20.7–25.5) µm; colpus width: 3.6 (2.9–4.7) µm; round aspidate pore; pore diameter: 2.8 (2.1–3.6) µm; vestibule height: 6.3 (4.5–8.8) µm; vestibule width: 7.1 (5.4–8.8) µm; viscin threads present, approximately 110–130 µm long; rugulate; exine thickness: 2.8 (2.5–3.8) µm.

Multilobate amb; prolate grain; P/E: 1.41 (1.30–1.50); polar axis: 24.5 (22.2–25.7) µm; equatorial axis: 17.4 (16.4–18.5) µm; 7–10 colporate; colpus length: 14.9 (12.8– 17.1) µm; maximum colpus width: 1.8 (1.3–2.4) µm; lalongate pores; occasionally fuse to form transverse furrow (see Plate 21: 353); pore height: 1.9 (1.6–2.1) µm; pore width: 4.1 (3.2–5.0) µm; psilate; exine thickness: 1.9 (1.8–2.2).

Spherical grain; maximum dimension: 55.8 (44.0–75.0) µm; periporate; 10–12 round pores per grain; pore diameter: 4.4 (3.8–5.7) µm; reticulate; heterobrochate; muri width: 2.6 (2.0–3.0) µm; lumina range: 7.7 (4.0–13.0) µm; exine thickness: 4.1 (3.0–5.0) µm.

Spherical grain; maximum dimension: 54.9 (50.0–60.0) µm; periporate; 10–12 round pores per grain; pore diameter: 2.3 (1.5–2.8) µm; reticulate; heterobrochate; muri width: 3.1 (3.0–4.0) µm; lumina range: 7.2 (4.0–15.0) µm; exine thickness: 3.6 (3.0–5.0) µm.

Rounded triangular amb; subspheroidal to prolate grain; P/E: 1.22 (1.09–1.34); polar axis 23.7 (22.0–26.5) µm; equatorial axis: 19.5 (17.9–20.7) µm; tricolporate; PAI: 0.29 (0.25–0.35); colpus length: 17.0 (15.0–19.6) µm; maximum colpus width: 0.97 (0.6–1.2) µm; lalongate pore; pores may merge to form transverse furrow; pore height: 2.0 (1.5–2.5) µm; pore width: 10.6 (8.6–12.2) µm; finely reticulate; exine thickness: 1.5 (1.0–1.9) µm.

Rounded triangular amb; subspheroidal grain; P/E: 0.97 (0.78–1.28); polar axis: 21.8 (20.0–23.0) µm; equatorial axis: 23.0 (18.0–27.5) µm; tricolporate; PAI: 0.23 (0.13–0.34); colpus length: 20.9 (19.8–24.4) µm; maximum colpus width: 2.1 (1.5–3.0) µm; round annulate pore; pore diameter: 2.9 (1.5–4.5) µm; annulus width: 1.9 (1.3–2.3); reticulate; homobrochate; exine thickness: 1.6 (1.0–2.0) µm; exine thickened into margo along colpus.

Circular amb; subspheroidal grain; P/E: 0.91 (0.80–1.0); polar axis: 22.7 (20.5–25.0) µm; equatorial axis: 24.8 (22.0–27.5) µm; tricolporate; PAI: 0.17 (0.11–0.23); colpus length: 24.0 (19.1–27.2) µm; maximum colpus width: 5.7 (5.0–8.0) µm; oval pore; pore height: 4.7 (3.9–5.6) µm; pore width: 6.8 (5.0–8.5) µm; reticulate; heterobrochate; luminae smallest near apertures; exine thickness: 1.7 (1.5– 2.0) µm.

Oval grain; long axis: 17.8 (15.0–20.5) µm; short axis: 13.1 (10.5–15.0) µm; monosulcate; sulcus length: 8.3 (7.4– 9.1) µm; maximum sulcus width: 2.6 (2.3–2.8) µm; psilate; exine thickness: 0.94 (0.7–1.1) µm.

Rounded amb; subspheroidal; polar axis: 28.3 (26.0– 31.5) µm; equatorial axis: 29.2 (26.5–31.0) µm; tricolporate; colpus length: 28.4 (26.8–30.3) µm; maximum colpus width: 5.6 (3.0–7.5) µm; round pore; pore diameter: 5.6 (3.0–8.0) µm; reticulate; homobrochate; exine thickness: 2.2 (2.0–2.5) µm.

Triangular amb; subspheroidal grain; P/E: 0.95 (0.87– 1.00); polar axis: 25.5 (23.0–27.0) µm; equatorial axis: 26.8 (25.0–30.0) µm; tricolporate; PAI: 0.23 (0.16–0.29); colpus length: 23.6 (20.2–26.6) µm; maximum colpus width: 2.9 (2.5–3.5) µm; lalongate pore; pore height: 6.1 (5.1–6.7) µm; pore width: 12.5 (10.4–15) µm; pitted; exine thickness: 1.3 (1.0–2.0) µm; occasional exine thickening adjacent to apertures (see Plate 16: 247).

Circular amb; subspheroidal grain; P/E: 1.02 (0.96– 1.12); polar axis: 26.6 (25.0–29.0) µm; equatorial axis: 26.1 (25.0–28.0) µm; tricolporate; PAI: 0.19 (0.16–0.22); colpus length: 25.3 (22.2–29.4) µm; colpus width: 2.3 (1.9– 2.6) µm; lalongate pore constricted in center (see Plate 12: 166); pore height: 2.1 (1.7–2.4) µm; pore width: 10.8 (10– 11.9) µm; psilate; exine thickness: 1.2 (1.1–1.4) µm.

Circular amb; subspheroidal to prolate grain; P/E: 1.05 (0.97–1.15); polar axis: 21.5 (17.1–25.5) µm; equatorial axis: 20.5 (15.3–24.4) µm; tricolporate–syncolporate; PAI: 0.14 (0.09–0.19); colpus length: 18.9 (15.2–22.0) µm; maximum colpus width: 2.0 (1.6–2.5) µm; lalongate pore constricted in center; pore height: 1.9 (1.4–2.8) µm; pore width: 7.7 (6.4–9.0) µm; psilate; exine thickness: 1.4 (1.0– 2.2) µm.

Spherical grain; maximum dimension: 53.1 (46.0–58.0) µm; stephanocolporate; 8 colpi; colpus length: 11.8 (10.3– 14.4) µm; maximum colpus width: 1.6 (1.0–2.2) µm; 8 lalongate pores; pore height: 3.2 (2.4–3.9) µm; pore width 7.7 (5.1–9.5) µm; reticulate; homobrochate; exine thickness: 2.4 (1.2–3.0) µm.

Spherical grain; maximum dimension: 19.3 (18.0–21.0) µm; diporate; round pore; pore diameter: 1.8 (1.5–2.0) µm; microrugulate; exine thickness: 1.4 (1.0–2.0) µm.

Spherical grain; maximum dimension: 14.3 (13.7–16.1) µm; diporate; round pore; pore diameter: 1.2 (1.1–1.3) µm; scabrate; exine thickness: 0.8 (0.7–0.9) µm.

Circular amb; subspheroidal grain; P/E: 1.02 (0.94– 1.15); polar axis: 39.6 (37.0–44.0) µm; equatorial axis: 38.9 (37.0–41.0) µm; tricolporate–colporoidate; PAI: 0.24 (0.21–0.29); colpus length: 32.2 (28.3–37.2) µm; maximum colpus width: 3.0 (2.0–5.0) µm; reticulate; heterobrochate; exine thickness: 4.4 (4.0–5.0) µm; exine thickness greatest between colpi; tectate.

Triangular to square amb; subspheroidal grain; P/E: 0.93 (0.84–1.03); polar axis: 35.4 (33.0–40.0) µm; equatorial axis: 38.0 (33.0–43.0) µm; tri–tetracolporate; PAI: 0.26 (0.19–0.28); colpus length: 29.2 (24–35.8) µm; colpus width: 2.3 (1.9–3.0) µm; lalongate pores, almost merging to form transverse furrow; pores typically angled toward pole rather than being elongated equatorially (see Plate 16: 256); pore height: 3.1 (2.0–4.0) µm; pore width: 12.8 (10.0–16.0) µm; pitted; exine thickness: 2.0 (1.1–2.4) µm.