Difference between revisions of "Gemmabryum ruderale"
Phytologia 89: 111. 2007.
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|name=Bryum ruderale | |name=Bryum ruderale | ||
|authority=Crundwell & Nyholm | |authority=Crundwell & Nyholm | ||
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name=Gemmabryum ruderale | name=Gemmabryum ruderale | ||
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|authority=(Crundwell & Nyholm) J. R. Spence | |authority=(Crundwell & Nyholm) J. R. Spence | ||
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|genus=Gemmabryum | |genus=Gemmabryum | ||
|section=Gemmabryum sect. Tuberibryum | |section=Gemmabryum sect. Tuberibryum | ||
Latest revision as of 22:34, 5 November 2020
Plants small, green or yellow-green, often with reddish tinge. Stems 0.4–2(–3) cm; rhizoids red-violet to deep red. Leaves loosely set, ovate-lanceolate, weakly concave, 0.4–1(–1.5) mm; base not decurrent; margins plane to weakly revolute proximally, entire to serrulate distally, limbidium absent; apex acute; costa short-excurrent, awn stout; alar cells similar to adjacent juxtacostal cells; proximal laminal cells abruptly quadrate to short-rectangular, 2–4:1; medial and distal cells (30–)40–60 × 8–14 µm, 3–4:1. Specialized asexual reproduction by rhizoidal tubers, on long rhizoids in soil, purple-red or rarely orange, irregularly spheric, (120–)150–200 µm, cells 25–50 µm, smooth. Sexual condition dioicous. [Capsule inclined or nutant, 1–3 mm].
Habitat: Damp disturbed soil, sand
Elevation: low to moderate elevations (0-1200 m)
Distribution
Ont., Ariz., Calif., La., Tex., Eurasia, n, s Africa, Atlantic Islands (Macaronesia), Pacific Islands (New Zealand).
Discussion
Gemmabryum ruderale is characterized by red-purple to violet rhizoids and relatively large, spheric, purple-red rhizoidal tubers. In the flora area, this species is probably introduced.
Selected References
None.