Indusiella thianschanica

Brotherus & Müller Hal.

Bot. Centralbl. 75: 322. 1898,.

Treatment appears in FNA Volume 27. Treatment on page 265. Mentioned on page 266.

Plants in dense dark-brown to black cushions. Stem central strand strong, to 1/3 stem diameter. Leaves 0.8–1 mm, apex obtuse to broadly acute, in section abaxial cells with thickened quasi-opaque external walls, basal lamina 1-stratose; largest distal leaves occasionally tipped with a hyaline apiculus of one or two cells, often eroded; costa in section with adaxial hyaline cells somewhat larger and more bulging than the semi-opaque thick-walled abaxial cells, costa with stereid cells present, two or more hydroids in the proximal leaf region, fewer to absent toward the apex; leaf cells smooth; basal-cells with thicker transverse walls. Sexual condition autoicous; perigonia sessile, situated within the perichaetium projecting beyond the group of archegonia (synautoicous or cryptoicous), leaves short, suborbicular, broadly acuminate. Seta centrally attached, 0.7–1 mm. Capsule smooth (not plicate), composed of irregularly shaped thick-walled cells; peristome teeth erect, irregularly split in distal half into 2–3 filiform segments, irregularly perforate, spiculose, united at the base. Spores spherical, yellowish-brown, 9–12 µm.


Habitat: Mineral soil over calcareous sedimentary rock
Elevation: moderate elevations (300[-5100] m)

Distribution

V27 370-distribution-map.gif

Alaska, Asia (Caucasus in Dagestan), Asia (China), Asia (Mongolia), Asia (Russia in Siberia), Africa (Chad)

Discussion

Indusiella thianschanicais is found in arid situations, with the single North American specimen on thin, fine mineral soil over calcareous sedimentary rock.

Selected References

None.

Lower Taxa

None.

... more about "Indusiella thianschanica"
apiculate +  and muticous +
deciduous +  and persistent +
Patricia M. Eckel +
Brotherus & Müller Hal. +
not papillose +
toothed +
sinuous +  and straight to sometimes +
sinuose-nodulose;quadrate;elongate +
autoicous +  and sexual +
short-rectangular;quadrate;oblate +
flaring +
undifferentiated +
plicate +  and smooth +
not papillose +
mitrate-campanulate +, mitrate +  and cucullate +
small;large +
sulcate +  and smooth +
pendent +  and erect +
long-exserted +
striate +  and smooth +
globose;symmetric;ventricose ovoid obloid or cylindrical +
thick-walled +
irregularly--shaped +
larger +
excurrent;percurrent;excurrent +
subpercurrent +
reniform +, elliptical +  and terete +
usually not markedly larger +
dark-brown +  and black +
Alaska +, Asia (Caucasus in Dagestan) +, Asia (China) +, Asia (Mongolia) +, Asia (Russia in Siberia) +  and Africa (Chad) +
moderate elevations (300[-5100] m) +
reproduction +  and asexual +
autoicous +  and sexual +
Mineral soil over calcareous sedimentary rock +
papillose +, mammillose +  and smooth +
ellipsoid-ligulate +
specialized +
dioicous +, autoicous +  and sexual +
tubulose-fistulose +
acuminate +  and suborbicular +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
1-stratose;2-stratose +
recurved +  and incurved +
entire +  and occasionally denticulate +
mammillate;long-rostrate +
not +  and differentiated +
lanceolate;linear +
Bot. Centralbl. +
2 (?) +  and 3 (?) +
straight +
sigmoid +  and arcuate +
papillose +  and smooth +
short to long +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
spiculose +  and perforate +
ornamented +  and smooth +
yellowish-brown +
spherical +
Indusiella thianschanica +
Indusiella +
species +
straight +
thick +  and thinner +
blackish green and opaque;brownish and translucent +