Consortium of Bryophyte Herbaria - Pylaisiadelpha tenuirostris

Pylaisiadelpha tenuirostris (Bruch & Schimp. ex Sull.) W.R. Buck
Family: Pylaisiadelphaceae pylaisiadelpha moss [Brotherella cylindricarpa (Müll. Hal.) M. Fleisch., more] Robert Klips	Flora of North America Resources Wilfred B. Schofield in FNA Volume 28 Pylaisiadelpha tenuirostris Stems: red-brown, reclining, slender, branches prostrate or sometimes arching upward; pseudoparaphyllia narrow, foliose. Stem: leaves crowded, 0.7–1 mm. Branch: leaves similar, slightly smaller. : Specialized asexual reproduction by filiform propagula in leaf axils. Seta: reddish. Capsule: symmetric, 1 mm. Phenology: Capsules mature early spring. Rock, epiphytic on tree trunks and bases, logs, broadleaf woodlands. low to moderate elevations. Nfld. and Labr., N.S., Ont., Ala., Ark., Conn., Ga., Ill., Ind., Maine, Md., Mich., Mo., N.Y., N.C., Ohio, Okla., S.C., Tenn., Vt., Va., W.Va., Wis., Mexico, Central America, Asia. Pylaisiadelpha tenuirostris is superficially similar to some specimens of Hypnum pallescens (Hypnaceae), a commonly sporophyte-bearing species with conic opercula and leaves lacking enlarged alar cells. Plants with sporophytes are rare. The rostrate opercula and conspicuous pigmented enlarged alar cells are distinctive.
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