Flora of North America species comparison

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

2–6.5 cm high, simple, often felted with whitish rhizoids.

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.

5–10 mm, erect-spreading when dry, widely spreading and somewhat recurved when moist;

sheath about 2 mm, hyaline-margined, the cells at the shoulders forming a differentiated hinge;

blade lanceolate, acuminate, sharply serrate nearly to the sheath;

costa short-excurrent, ending in a short, brownish or reddish brown point;

marginal lamina plane to erect, 2–8(–20) cells wide;

lamellae 18–50, crenulate in profile, 4–7 cells high, marginal cells in section narrow, pyriform, thickened at the narrowed apex, smooth;

sheath cells rectangular, 4–6:1;

cells of marginal lamina 9–13 µm, rounded to subquadrate.

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

3.5 cm.

dioicous;

perichaetial leaves not much differentiated.

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.

4.5–5 mm, 4-angled;

hypophysis cylindric but not sharply delimited;

exothecial cells absent a central thin spot.

11–14 µm.

11–13 µm.