Flora of North America species comparison

trailing;

branches red-brown or yellow-brown, glabrous;

branchlets red-brown, glabrous.

stipules absent or rudimentary;

petiole (shallowly to deeply grooved adaxially), 2–8 mm, (with 2 spherical glands distally, dark brown, sometimes basilaminar, sparsely pubescent or glabrous adaxially);

largest medial blade hypostomatous, (veins strongly impressed-reticulate), broadly elliptic, subcircular, or obovate, 18–67 × 10–40 mm, 1.1–2.3 times as long as wide, base rounded, convex, or subcordate, margins strongly revolute, crenate or subentire, apex rounded, convex, retuse, or toothed, abaxial surface sparsely to densely villous or long-silky, veins often with long, straight hairs, adaxial slightly glossy, glabrous or sparsely long-silky;

proximal blade margins entire or crenate;

juvenile blade (yellowish green), abaxially very densely long-silky.

(prominently marcescent, becoming skeletonized);

stipules absent or rudimentary;

petiole (deeply grooved or convex to flat adaxially), 1.2–3.2(–4.8) mm, (sparsely pubescent adaxially);

largest medial blade amphistomatous, (2 pairs secondary veins arising at or close to base, arcing toward apex), elliptic, broadly elliptic, obovate, subcircular, or circular, 7–15 × 3–11 mm, 1.1–2.5(–3.5) times as long as wide, base convex or cuneate, margins flat, entire, sometimes ciliate, apex convex, rounded, or retuse, abaxial surface not glaucous, glabrous, midrib sometimes pilose, hairs long, straight, wavy, or crinkled, adaxial highly glossy, glabrous;

proximal blade margins entire;

juvenile blade (green), glabrous abaxially or ciliate.

abaxial nectary 0.6–0.8 mm, adaxial nectary narrowly oblong, 0.5–1.2 mm, nectaries connate and shallowly cup-shaped, or distinct;

filaments distinct, hairy on proximal 1/2;

anthers ellipsoid or globose, 0.3–0.5 mm.

abaxial nectary absent, adaxial nectary narrowly oblong or oblong, 0.4–1.1 mm;

filaments distinct or connate less than 1/2 their lengths, glabrous;

anthers ellipsoid or obovoid, 0.3–0.5 mm.

abaxial nectary (0–)0.8–0.9 mm, adaxial nectary oblong, ovate, or narrowly oblong to almost filiform, 0.7–1.4 mm, shorter to longer than stipe, nectaries distinct or connate and cup-shaped;

stipe 0.4–1.2 mm;

ovary pyriform or obnapiform, densely short-silky, hairs cylindrical, beak abruptly tapering to styles;

ovules 13–15 per ovary;

styles connate 1/2 their lengths to almost distinct, 0.2–0.4 mm;

stigmas flat, abaxially non-papillate with rounded tip, slenderly cylindrical, or 2 plump lobes, 0.2–0.28–0.36 mm.

abaxial nectary absent, adaxial nectary oblong or narrowly oblong, 0.4–1.6 mm, shorter than or equal to stipe;

stipe 0.4–1.4 mm;

ovary pyriform, sparsely to moderately densely short-silky or villous, at least on beaks, hairs ribbonlike, beak slightly bulged below styles;

ovules 12 per ovary;

styles connate or slightly distinct distally, 0.3–1 mm;

stigmas flat, abaxially non-papillate with rounded tip, or slenderly to broadly cylindrical, 0.16–0.34–0.52 mm.

3–5 mm.

2.9–4.8 mm.

staminate 13–48 × 4–6.5(–8) mm, flowering branchlet 3–31(–50) mm; pistillate densely flowered, slender or stout, 18–56 × 4–10 mm, flowering branchlet 3–27(–40) mm;

floral bract tawny, 0.8–1.6 mm, apex rounded, entire, abaxially densely hairy, hairs straight.

staminate 10–35 × 6–10 mm, flowering branchlet 1–11 mm; pistillate moderately densely flowered, stout or subglobose, 12–38 × 5–11 mm, flowering branchlet 3–14 mm;

floral bract brown, black, or bicolor, 1–1.3 mm, apex rounded, entire, abaxially sparsely hairy, hairs straight or wavy.

= 38.

= 38.