Brachydontium olympicum
Bryologist 89: 200. 1986,.
Basionym: Grimmia olympica E. Britton Bryologist 13: 59, plate 7. 1910
Treatment appears in FNA Volume 27. Treatment on page 328.
Stems 2–5 mm. Leaves 1–2.5 mm, distal laminal cells mostly isodiametric, 1: 1, with a few cells 2: 1 or transversely elongate, areolation somewhat irregular, proximal cells longer. Seta 0.5–2 mm, flexuose when dry. Capsule spherical to short-ovate, 0.4–0.6 mm. Peristome absent. Spores 6–10 µm.
Habitat: Moist, acidic boulders, montane, predominantly alpine
Distribution
B.C., Alaska, Oreg., Wash., e Asia (Japan)
Discussion
The spherical or short-ovate capsules absent peristome teeth and the somewhat shorter distal laminal cells distinguish Brachydontium olympicum from B. trichodes. This is a circum-North Pacific montane species, which should be sought for in coastal areas of Siberia.
Selected References
None.
Lower Taxa
None.
... more about "Brachydontium olympicum"
compound +
irregular +
clasping +
erect +
colored +
not differentiated +
single +
homogenous +
isodiametric +
Present +
long-excurrent +
curved +
generally erect-spreading;spreading-recurved +
vegetative +
linear;stoutly subulate +
broader and shorter +
broader +
haplolepideous +
absent +
reduced +
absent +
papillose +
Bryologist +
acidic +
flexuose +
cygneous +
Brachydontium olympicum +
Brachydontium +
species +
entire +
triangular +
unbranched;rarely 2-3-branched +
brownish +
volcanic +