unlobed
sub-globose, 3-5 mm, very bristly to the base
buds glabrous
Winged, wing may be damaged/missing from macrofossils.
biconvex, broad, 2-2.5 mm long
fruit 2-4 cm; wing slightly divergent to 50-60 degrees
oblong-linear, ~1 mm long; striated surface
triangular, 2-3 mm long; shiny, black
compressed obovate, 2-3.5 mm long; linear hilum
4-6 angled, hollow
red, globose, 6-12 mm wide
obovate, ~1 mm long; dimpled at top of seed
elliptic-oval, ~2.5 mm long
3 lobed, lobes divergent, forming cross-like or fleur-de-lis shape. 6-12 mm.
rounded trigonous, obovate, inconspicuously veined, 4-5.4 mm; beak 2 mm long, inconspicuously serrate
oblong, tapering slightly to base; 2-2.5 mm long; 4 sided
nut depressed to narrowly ovate, 2-5 cm long, 2-4 cm wide; cup covering 1/3 to 3/4 of nut; marginal cup scales awned, fo...
nut depressed to narrowly ovoid, 2-5 cm long, 2-4 cm wide; cup covering 1/3 to 3/4 of nut; marginal cup scales awned, fo...
nut ovoid, 6-13 mm long; cup bowl shaped, covering 1/2 of nut; large, pubescent scales; marginal scales projecting, formi...
