Ptychomitriopsis africana Dixon

Species

Bryophytes > Grimmiales > Ptychomitriaceae > Ptychomitriopsis

Characteristics

Plants small, loosely to densely caespitose,, green to yellow-green; saxicolous. Stems 3-5 mm tall, sparsely branched; in section round, central strand large, inner cortical cells in 2 or 3 rows, large, thin-walled, outer cortical cells in 1(2) row(s), ± smaller, thin-walled, brownish. Leaves erect-spreading wet, incurved and ± crisped dry; unistratose; narrowly elliptical to oblong, 2.0-2.5 mm long; obtuse to rounded and short-apiculate; tapering to base; margins plane, entire. Costa subpercurrent; in section elliptical, guide cells 4, small, ventral stereid band small, 2 cells thick, ventral surface cells large, similar to laminal cells, thin-walled, dorsal stereid band 2 or 3 cells thick, dorsal surface cells small, thickened or occasionally substereids. Laminal cells subquadrate to ± transversely rectangular, (8-)11-14 µm, firm-walled; basal cells hyaline, short-rectangular, 2:1 to 3:1, thin-walled. Perichaetia terminal, leaves undifferentiated. Seta 2-3 mm long, yellowish. Capsule cylindrical, 1.0-1.3 mm long, brownish with red mouth. Peristome teeth lanceolate, cleft, papillose, reddish. Operculum rostrate, 0.7 mm long. Calyptra mitrate, 0.8 mm long. Spores rounded, 7-8 µm, yellowish, weakly papillose.
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Soil texture 7-8
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Cultivation

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Distribution

Ptychomitriopsis africana world distribution map, present in South Africa

Identifiers

LSID 35144063
WFO ID wfo-0001171730
COL ID 6WNBN
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Wikipedia (EN)
Wikipedia (FR)

Synonyms

Ptychomitriopsis africana Ptychomitrium godfreyi