Oreoweisia erosa (hampe ex Müll.hal.) Kindb.

Species

Bryophytes > Dicranales > Rhabdoweisiaceae > Oreoweisia

Characteristics

Plants small, in loose tufts, dark green to yellow-green; terricolous. Stems erect, to 10 mm tall, radiculose below; in section subround, central strand present, inner cortical cells in 3 rows, large, outer cortical cells in 1-2 rows, small, incrassate, reddish. Leaves crisped when dry, patent wet; ligulate, 1.2-2.0 mm long; apex obtuse, occasionally acute, frequently weakly cucullate; margins plain, erose to bluntly serrate above. Costa prominent, ending just below apex or rarely percurrent; in section guide cells 4, large, ventral cells in single row, incrassate, dorsal stereid band 2 cells thick, dorsal surface cells larger, incrassate. Laminal cells irregular, quadrate to angular, sharply mammillose on dorsal and ventral surfaces; basal cells oblong, smooth, hyaline; alar cells not differentiated. Autoicous. Perigonia on lower stem, leaves abruptly ligulate from a broadly oval base. Perichaetia lateral through innovation, frequently persistent; leaves not differentiated. Seta erect, 5-6 mm long, reddish yellow; capsule short-cylindrical, 1.5 mm long, reddish yellow; peristome fragile, teeth irregularly perforated, yellowish, smooth; spores round, 20-22 µm, papillose.
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Plants small, in loose tufts. Stems erect, up to 10 mm long, radiculose below. Leaves crisped when dry, patent when wet; ligulate, 1.2-2.0 mm long; apex obtuse, weakly cucullate; margins erose to bluntly serrate above; costa prominent, ending just below or percurrent. Upper laminal cells irregular, quadrate to angular, sharply mammillose on both surfaces; basal cells oblong, smooth, hyaline. Capsule short-cylindrical; peristome teeth fragile. Spores papillose. Recognised by the erose leaf margins, obtuse apices and strongly mammillose leaf cells.
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Mature height (meter) 0.01
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Soil texture 7-8
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Cultivation

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Distribution

Oreoweisia erosa world distribution map, present in South Africa

Identifiers

LSID 35172675
WFO ID wfo-0001188911
COL ID 6STZJ
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Wikipedia (EN)
Wikipedia (FR)

Synonyms

Hyophila erosa Oreoweisia erosa Weissia erosa