Bryum alpinum Huds. ex With.

Alpine bryum moss (en)

Species

Bryophytes > Bryales > Bryaceae > Bryum

Characteristics

Plants medium-sized to large, caespitose, red to reddish green or green to yellowish green above, yellowish brown or reddish brown to brown below, frequently shiny; terricolous or saxicolous. Stems 5-55 mm tall, simple or branching by innovations, occasionally tomentose below; rhizoids red-brown, coarsely papillose, tubers rare, 140-300(-1000) µm, red to red-brown. Leaves crowded or occasionally distant below, generally equidistant, about equal in size, appressed to erect when dry, erect to erect-spreading when wet, lanceolate to oblong-lanceolate, ovate-lanceolate or oblong to elliptical, frequently concave, 1-3 mm long; apex acuminate to rounded-obtuse, occasionally cucullate; margins plane to revolute, entire or crenulate to denticulate at apex; border absent. Costa ending below apex to short-excurrent, reddish or yellowish to brown; in section subround to round, laminal insertion ventral, ventral surface cells incrassate, dorsal stereid band strong, stereids in 2-4 rows, dorsal surface cells incrassate or substereids, hydroids present between stereid band and guide cells. Upper laminal cells short-rhomboidal to linear-rhomboidal or vermicular, occasionally pitted, frequently incrassate, (32-)37-63(-98) µm long, (7-)10-15(-20) µm wide; basal cells rectangular to quadrate, frequently orange or yellow to brown, frequently pitted, occasionally bulging below, walls frequently thickened. Dioicous, sporophytes rare. Perichaetia terminal; leaves lanceolate or triangular, 1.0-1.4 mm long, cells linear-rhomboidal to vermicular. Seta 13-40 mm long, red to reddish brown; capsule pendulous, clavate or pyriform, red to reddish brown, urn 1-2 mm long, neck frequently wrinkled when dry, 0.5-1.2 mm long; exothecial cells irregular in shape, incrassate, smaller towards mouth; peristome double, exostome teeth narrowly oblong-acuminate, yellowish brown below, hyaline above, minutely papillose, endostome segments tapered above, broadly perforated, cilia 2-3, nodose to appendiculate, basal membrane high, yellowish, minutely papillose; operculum mammillate; calyptra cucullate; spores 17-23 µm, minutely papillose.
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Plants medium-sized to large, frequently reddish green, shiny. Stems 5-55 mm long. Leaves crowded, appressed to erect when dry, generally narrowly ovate, frequently concave, 1-3 mm long; apex mostly acuminate; margins plane to revolute, crenulate to denticulate above; border absent; costa ending below to short-excurrent. Upper laminal cells generally linear-rhomboidal, incrassate. Capsule pendulous, red to reddish brown.
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Foliage retention deciduous
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Mature height (meter) 0.01 - 0.06
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Soil humidity 4-8
Soil texture 7-8
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Cultivation

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Images

Bryum alpinum unspecified picture

Distribution

Bryum alpinum world distribution map, present in South Africa

Identifiers

LSID 35116139
WFO ID wfo-0001156002
COL ID NJZW
BDTFX ID -
INPN ID 5711
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Bryum afroalpinum Bryum alpinum Bryum laurentianum Bryum rectitheca Bryum wilmsii Bryum alpinum f. madagassanum Bryum alpinum var. madagassum

Lower taxons

Bryum alpinum subsp. atlanticum Bryum alpinum subsp. geheebii Bryum alpinum subsp. gemmiparum Bryum alpinum subsp. gerwigii Bryum alpinum subsp. reyeri Bryum alpinum subsp. rivulare Bryum alpinum var. fleischeri Bryum alpinum var. moldavicum Bryum alpinum var. opalinii Bryum alpinum var. ovatum Bryum alpinum var. reinhardtii Bryum alpinum var. rhenanum