obovate to compressed triangular, 1-2 mm long; white mouth at seed attachment base; globules on inner face; globules and ...
ovate, minute, 0.5-0.8 mm; covered in white hairs; conspicuous white-light yellow base
biconvex, 2-3 mm long; wing 5-8 mm long
biconvex, 1.5-2 mm long; wing 2-5 mm long
obovate-compressed, 0.5-0.7 mm long; pointed style base (tip); body surrounded by wing-like ring of spongy tissue, except...
triangular, sides convex, 1-1.5 mm; smooth, shiny; embryo attached to one side (rather than to a corner as in Polygonum)
2-8 mm; smooth, glabrous
oblong-cylindric, 2-3 mm long with tapering base; pappus (white hairs) may or may not be present in fossils; lengthwise r...
oblong-cylindric, 1-2 mm long with tapering base; pubescent; pappus (short white bristles) may or may not be present in f...
compressed-elliptic, 0.5-1 mm long; attachment point slightly darker; ridged longitudinally due to bent embryo
angular-ovate to kidney shaped, 0.75-1 mm long; covered in many small tubercles (warty bumps) beginning at hilum (base) a...
oval-orbicular, ~1 mm long; rough, bumpy texture, but generally much less so than other members of family
orbicular, ~1 mm long; pinched hilum (seed base); covered in angular-rounded tubercles (warty bumps); fewer tubercles rel...
rounded, 5 sectioned capsule, ~5 mm wide; indented top; style persistent at top of capsule
rounded, 5 sectioned capsule, up to 6 mm wide; indented top; style persistent from top of capsule
abaxial (bottom) side shown; ovate to narrowly triangular, 2-10 mm long, 1-3 mm wide; bottom of leaf much paler than top;...
adaxial (top) side of leaf shown; lanceolate, 3-8 cm long, 1-4 cm wide; margins coarsely, irregularly toothed
elliptic, 0.3-0.5 mm long; finely pitted surface; embryo folded so that lengthwise dark brown line is visible
elliptic, 5-7 mm long; conspicuous micropyle opening (hole at seed base); smooth, shiny
subfossil specimen; note remnant of wings, persistent stigmas, characteristic size and shape (elliptic, 1.5-3 mm)
flattened-ovate, 1.5-2 mm long; marginal seam that is lighter in color than seed body; short beaked
adaxial side (top of leaf) pictured; oblong-lanceolate, 2-4 cm long (mature trees) or 1-2 cm long (young trees); weakly r...
pit spheroid, 7-9 mm in diameter; low ridge along one side (visible on left side of top right pit in image); inner surfac...
abaxial side (bottom of leaf) pictured; oblong-lanceolate, 2-4 cm long (mature trees) or 1-2 cm long (young trees); weakl...
pit globose, 7-9 mm in diameter; low ridge along one side (visible on left side of top right pit in image); inner surface...
