ovate-lenticular, ~ 2.7 x 2.4 x 1.2 mm; 3 or 4 longitudinal ridges/ribs on both faces in addition to ribs along margins (...
compressed ovoid to ellipsoid, ~7 x 5 x 3 mm; several grooves/stripes on each face
angular-ovate, flat; ~0.5 mm long; surface with distinct tubercles (wart like projections); must compare to other tubercl...
oval to spatulate, 1-1.2 cm long; visible attachement point; surface pitted-reticulate;
wedge shaped, like narrow sector of sphere, 1-2 mm long; one side nearly straight
elliptic compressed-triangular, 2-2.5 mm long; surface marbled with streaks and/or netted lines
nut 10-16 mm long, 9-15 mm wide; cup shallow, saucer shaped, covering 1/5 to 1/4 of nut
fruit flat, lanceolate to oblanceolate, ~2.5-4 cm x 6-10 mm; very small notch at tip of wing
buds glabrous
opposite bud scars, glabrous (shiny); lenticels (white marks)
winged, 3 mm long, 3-5 mm wide, ellipsoid-obovate in shape, somewhat flattened; wings may be damaged/missing in subfossil...
adaxial (top) surface; rounded to obovate, 2-4 cm long, 1-3 cm wide, coarsely toothed margins, teeth may be blunt or shar...
lens shaped in cross section, circular in outline; 1-3 mm wide; dull, dark brown to black; outline of ring-shaped embryo ...
1-2.5 cm wide; 5-12 shallow, rough ridges; hollow central cavity 1/3-1/4 of total stem diameter; other smaller cavities ...
4-5 mm long, 3-4 time as long as wide, faintly veined or veinless on both sides; tapered beak with finely serrate margins...
linear to narrowly oval, 2-5 cm long, 3-10 mm wide; sharp pointed with a small spine; leathery; margins may be rolled und...
subglobose, 3-4.5 mm long, 1.5-2 times as long as wide; short, slender beak
compressed kidney shaped, 2-3 mm long; narrow line runs obliquely on each face from hilum (seed attachment scar)
crescent-wedge shaped , 4-5 mm long, 3-4 mm wide; slightly compressed laterally, shallow ribbed
obovate to compressed triangular, 1-2 mm long; white mouth at seed attachment base; globules on inner face; globules and ...
compressed, oval to elliptic, 0.5-1 mm long; glossy; conspicuous seed coat lighter in color than body
biconvex, 2-3 mm long; wing 5-8 mm long
oblong rounded-triangular, 1-1.5 mm long; surface ridged, with bristles clustered at top and along margins
biconvex, 1.5-2 mm long; wing 2-5 mm long
nut 10-16 mm long, 9-15 mm wide; cup shallow, saucer shaped, covering 1/5 to 1/4 of nut
