Consortium of Bryophyte Herbaria
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Lichen Consortium Resources
Plagiopus
Family:
Bartramiaceae
Flora of North America
Resources
Dana G. Griffin III in FNA Volume 28
Plagiopus
Plants
: in dense tufts, dull olive green to brownish.
Stems
: 2–10 cm, erect to ascending, 2-fid; triangular in cross section, hyalodermis present, epidermis not prorulose; radiculose proximally, rhizoids papillose.
Leaves
: in 3 rows, laxly erect or erect-spreading and somewhat curved when dry, erect-spreading when moist, narrowly lanceolate, 1-stratose, often 2-stratose at distal margins; base not sheathing; margins revolute nearly throughout, often serrate distally, teeth paired; apex acuminate; costa percurrent to short-excurrent, abaxial surface serrulate; basal laminal cells longer than distal cells; distal cells subquadrate or short-rectangular, faintly striate, walls thick.
: Specialized asexual reproduction unknown.
Sexual
: condition synoicous; perigonia absent; perichaetial leaves scarcely distinct.
Seta
: single, elongate, straight or flexuose.
Capsule
: suberect, subglobose, furrowed when dry, mouth small; annulus absent; operculum short-conic or convex; peristome double; exostome teeth reddish brown, lanceolate, smooth or minutely papillose, apically free; endostome yellowish to hyaline, segments broad, cilia short, rudimentary, or absent.
Spores
: ellipsoid, coarsely papillose. Nearly worldwide, except Antarctica.
Species 1. Plagiopus is distinguished by its triangular stems, striated laminal cells, and leaves appearing papillose in cross section.
Species within checklist:
Olympic National Park
Plagiopus oederiana
Plagiopus oederianus
This project made possible by National Science Foundation Awards:
#1115116
,
#2001500
,
#2001394
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