Ptychostomum archangelicum (Bruch & Schimp.) J.R.Spence

Species

Bryophytes > Bryales > Bryaceae > Ptychostomum

Characteristics

Plants in dense or open turfs or scattered individuals, green, red-green, or yellow-green. Stems0.4-1.5 cm, tufted, comose, innovations elongate and evenly foliate; often strongly radiculose. Leaves yellow-green to red-green, weakly to strongly contorted or shrunken when dry, ovate-lanceolate, flat to weakly concave, (0.4-)0.8-2(-2.5) mm, enlarged toward stem apex; base not decurrent; margins revolute to mid leaf; limbidium strong, of 2 or 3 rows; apex acuminate; costa long-excurrent, awn , not or slightly denticulate; proximal laminal cells 3-4:1, same width or narrower than more distal cells; medial and distal cells rhomboidal, 12-18 µm wide, 3-4:1, walls thin. Specialized asexual reproduction absent. Sexual condition synoicous. Seta 1-3 cm. Capsule brown, pyriform, symmetric, 2-3 mm, mouth yellow; operculum short-convex, not or weakly apiculate; peristome usually well developed to slightly reduced; exostome teeth yellow basally, hyaline distally, lamellae usually curved mid tooth, pores absent from exostome along mid line; endostome sometimes weakly adherent to exostome at base, basal membrane high, 1/2 exostome height, segments with ovate perforations, cilia reduced or absent. Spores (22-)25-30 µm, strongly papillose, dark brown to black.
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Identifiers

LSID 35216066
WFO ID wfo-0001213261
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INPN ID 770995
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Synonyms

Ptychostomum archangelicum