Ptychostomum pallescens (schleich. ex Schwägr.) J.r.spence

Species

Bryophytes > Bryales > Bryaceae > Ptychostomum

Characteristics

Plants in dense or open turfs, green or yellow-green. Stems 1-3(-4) cm, comose, innovations comose or somewhat elongate and evenly foliate; somewhat radiculose. Leaves green, twisted to contorted when dry, ovate-lanceolate, flat to weakly concave, (1-)2-3(-3.5) mm, somewhat enlarged toward stem apex; base weakly decurrent; margins revolute to mid leaf or beyond, limbidium strong, in 2 or 3 rows; apex acuminate; costa long-excurrent, awn ± smooth; proximal laminal cells 3-4:1, same width or sometimes wider than more distal cells; medial and distal cells rhomboidal, 14-22 µm wide, 3-4:1, walls usually thin to firm. Specialized asexual reproduction absent. Sexual condition autoicous. Seta 1-2(-3) cm. Capsule brown, elongate-pyriform, symmetric, 2-4 mm, mouth yellow; operculum conic, apiculate; peristome well developed; exostome teeth yellow basally, hyaline distally, lamellae usually straight mid tooth, pores absent along mid line; endostome not adherent to exostome, basal membrane high, 1/2 exostome segments with elongate oval perforations, cilia long, appendiculate to nodose. Spores 18-22 µm, finely papillose, pale brown-yellow or green.
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Identifiers

LSID 35216083
WFO ID wfo-0001213277
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INPN ID 963539
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Synonyms

Ptychostomum pallescens