Ptychostomum reedii (H.Rob.) J.R.Spence

Species

Bryophytes > Bryales > Bryaceae > Ptychostomum

Characteristics

Plants in dense turfs, dark green. Stems 1-2 cm, comose, innovations comose or somewhat elongate and evenly foliate; not strongly radiculose. Leaves green, twisted to contorted when dry, oblong or ovate, concave, (0.5-)1-2 mm, not much enlarged toward stem apex; base not decurrent; margins plane or revolute to mid leaf, limbidium somewhat indistinct, in 1 or 2 rows; apex acute, sometimes apiculate; costa percurrent in proximal leaves to sometimes short-excurrent in distal leaves, awn denticulate; proximal laminal cells 3-4:1, same width or sometimes wider than more distal cells; medial and distal cells rhomboidal, 12-16 µm wide, 3-4:1, walls thin. Specialized asexual reproduction by leaf axil gemmae, green or green-brown. Sexual condition autoicous. Seta 2-3 cm. Capsule brown, pyriform, symmetric, 2-3 mm, mouth yellow; operculum short-conic, apiculate; peristome reduced; exostome teeth yellow basally, hyaline distally, lamellae usually straight mid tooth, pores absent along mid line; endostome variable, not adherent to exostome, basal membrane low, segments with narrowly ovate perforations, sometimes reduced, cilia variable, absent or occasionally present and well developed, appendiculate or nodose. Spores (28-)30-40µm, finely papillose, green.
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Identifiers

LSID 35216085
WFO ID wfo-0001213279
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Wikipedia (FR)

Synonyms

Ptychostomum reedii