Flora of North America species comparison

1.5–3(–6) cm high, usually unbranched, sparsely radiculose at or near the base.

2–8 cm, simple, rarely branched, somewhat radiculose at or near the base.

6–10 mm, erect and loosely appressed with recurved tips when dry, spreading and broadly recurved when moist;

sheath ovoid, hyaline-margined, golden brown, contracted to the blade, the cells at the shoulders forming a differentiated hinge;

blade long-lanceolate, coarsely toothed at least in distal 2/3, acuminate, ending in a short, reddish, toothed awn;

costa shortly excurrent, sparsely toothed abaxially near the tip;

marginal lamina 1-stratose, narrow, mostly erect;

lamellae 6–7 cells high, entire in side view, with nearly straight sides when viewed from above, the terminal cells in section rounded or more often transversely elliptical, ± flat-topped, with a much smaller lumen than the others and the free wall conspicuously thickened, often brownish, smooth, sometimes finely striate-papillose;

sheath cells 40–50 × 16–20 µm (3:1);

cells of marginal lamina 12–15 µm, subquadrate;

perichaetial leaves with long, sheathing bases and conspicuous golden yellow awns.

6–10 mm, erect-spreading when dry, the blade spreading and recurved but not sharply reflexed when moist;

sheath pale or yellowish, with tapering shoulders, hyaline-margined, the cells at the shoulders forming a differentiated hinge;

marginal lamina plane or somewhat erect, 3–9 cells wide, sharply toothed from the apex almost to base of blade;

blade lanceolate, sparsely toothed at back near the tip;

costa excurrent, ending in short, reddish, toothed awn;

lamellae (7–)20–40, crenulate in profile, 4–6 cells high, marginal cells often variable, in typically cuneate in section, flat-topped to shallowly retuse, not thick-walled, smooth;

median sheath cells 80–100 × 8–12 µm (5:1), elongate-rectangular;

sheath cells oblong-linear;

cells of marginal lamina 12–16 µm, ± isodiametric;

perichaetial leaves not much differentiated.

2–9 cm, stout, yellowish, much longer than the leafy shoots.

2–8 cm, pale-yellowish.

3–5 mm, pale brown, suberect to strongly inclined, 4-angled;

hypophysis cylindric but not sharply delimited;

exothecial cells not bulging or mammillose, without a central thin spot;

stomata numerous, on the distal part of the hypophysis;

peristome 300 µm, divided to 0.6, the teeth ca. 50, pale brown.

3–5 mm, 4-angled, suberect to inclined, pale yellowish brown, slender and somewhat curved, tapering to the base, the hypophysis not or only weakly delimited;

stomata in a band in the distal part of the hypophysis;

exothecial cells not bulging or mammillose and without a central thin spot;

peristome 240 µm, divided to 0.6, the teeth ca. 50, pale.

11–14 µm.

12–16 µm.