Homomallium adnatum
homomallium moss
2–3 cm, dark green or yellowish brown, branches straight.
erect or slightly homomallous, 0.5–1 mm;
margins erect, entire;
apex abruptly short-acuminate or subulate;
alar cells quadrate, walls thick, region extending 1/3 leaf margin;
distal laminal cells 15–25 × 3–5 µm, walls thick.
yellow-orange, red, or purple, 0.5–1.5 cm.
yellow to reddish brown, 0.9–1.5 mm.
11–12 µm, smooth to minutely papillose.
Homomallium adnatum
Homomallium adnatum is found throughout eastern North America. Occasionally it produces dense clusters of short brood branches as does Platygyrium repens, a corticolous species distinguished by its erect capsules, reflexed leaf margins and longer laminal cells. Although Hypnum cupressiforme is somewhat similar to Homomallium adnatum, it is distinguished by its longer leaves and alar cells that are restricted to the bottom 1/4 of the leaf margins. Homomallium sharpii is a similar species found in Mexico in comparable habitats; its plants have smaller branches (1 cm), differentiated stem and branch leaves, longer medial cells (more than 30 µm), and alar cells in small triangular groups.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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