Bartramiopsis lescurii

(James) Kindberg

Rev. Bryol. 21: 35. 1894,.

Basionyms: Atrichum lescurii James Bull. Torrey Bot. Club 6: 33. 1875
Synonyms: Lyellia lescurii (James) E. S. Salmon
Treatment appears in FNA Volume 27. Treatment on page 161.

Plants in loose to rather dense pure tufts, dull olive green, becoming dark reddish-brown with age. Stems 3–10 cm, arising from a short, erect tuberous rhizome, slender and threadlike, distantly bracteate and appearing almost leafless proximally, ± abruptly leafy distally. Leaves loosely imbricate, 4–6 mm, linear-lanceolate from a sheathing base, the sheath yellowish and nitid, clasping stem; limb reflexed at the shoulders, subtubulose, twisted and contorted when dry, widely spreading and almost plane when moist; costa slender, percurrent, smooth abaxially, ending in a short spine; margins of sheath entire proximally, not hyaline-margined, at shoulders cilia 1-seriate, 0.4–0.6 mm, cells distinctly papillose; no hinge-tissue; margins of limb plane, serrations ending in a conical tooth cell, sometimes with 1–2 short cilia near the shoulders; lamina 2-stratose except for a narrow strip just within the margin and locally 1-stratose streaks and patches, adaxial layer of cells strongly bulging-mammillose in indistinct longitudinal rows; lamellae 4–5 (–9), restricted to the costa, 4–8 (–10) cells high, serrations ending in a small-toothed cell; sheath cells linear at margin, the median short-rectangular, 23–28 × 6–9 µm; abaxial laminal cells irregularly arranged, subquadrate, 6–10 (–12) µm, walls evenly thickened and firm; abaxial costal cells sharply differentiated, narrowly elongate to linear, 25–33 (–55) × 5–6 µm. Sexual condition dioicous; male plants like the female, male inflorescence inconspicuous, several to a shoot, separated by sectors with normal vegetative leaves, perigonial bracts with a broader sheath, but otherwise like the leaves; perichaetial leaves scarcely differentiated. Seta rather stout, 7–12 mm. Capsule yellowish-brown, erect, 2.5–4 mm, widest at the mouth; exothecial cells short-rectangular, 40–62 × 26–30 µm, smaller and ± isodiametric below mouth, smooth; stomata superficial, confined to the tapering neck; operculum almost as large as urn, beak about 1 mm; peristome none; columella broadly flaring, extending to capsule rim. Calyptra cucullate.


Habitat: Soil banks or soil over rock, exposed tree roots
Elevation: usually low to moderate elevations

Distribution

V27 202-distribution-map.gif

B.C., Alaska, Wash., e Asia (Japan), e Asia (Russia in Kamtschatka)

Discussion

Selected References

None.

Lower Taxa

None.

"widest" is not a number.

... more about "Bartramiopsis lescurii"
dioicous +  and sexual +
bulging-mammillose +
prominent +
Gary L. Smith Merrill +
(James) Kindberg +
Atrichum lescurii +
1 cm10 mm <br />0.01 m <br /> (?) +
abrupt +, crisped +  and undulate +
firm-textured +
broadened +
papillose +
monoicous +, dioicous +, sexual +  and vegetative +
cucullate +
yellowish-brown +
flaring +, terete +  and short-cylindric +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
small-toothed +
toothed +
slender +
undifferentiated +
B.C. +, Alaska +, Wash. +, e Asia (Japan) +  and e Asia (Russia in Kamtschatka) +
usually low to moderate elevations +
short-rectangular +
scabrous +, mammillose +  and smooth +
Soil banks or soil over rock, exposed tree roots +
delimited +  and indistinct +
photosynthetic +
4 +  and 5 +
serrate +, crenulate +  and serrulate +
linear-lanceolate +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
membranous +
spreading +  and reflexed +
1(-3)-stratose +
cuticular-papillose +  and smooth +
toothed +, serrate +, denticulate +  and entire +
shape +  and size +
tapering +
pigmented +  and pale +
Rev. Bryol. +
underground +
indistinct +
not differentiated +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
not hyaline-margined +
short-rectangular +
not hyaline-margined +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
differentiated +
larger +  and minute +
leafy +, leafless +  and bracteate +
thread-like +
slender +
3 cm30 mm <br />0.03 m <br /> (10 cm100 mm <br />0.1 m <br />) +
superficial +
Lyellia lescurii +
Bartramiopsis lescurii +
Bartramiopsis +
species +
compound +  and simple +
unjointed +
dark reddish-brown +  and olive green +
female +  and male +