Takakia ceratophylla

(Mitten) Grolle

Oesterr. Bot. Z. 110: 444, fig. 1. 1963,.

Basionym: Lepidozia ceratophylla Mitten J. Proc. Linn. Soc., Bot. 5: 128. 1861
Treatment appears in FNA Volume 27. Treatment on page 43.

Plants absent distinctive odor when dry, distal portion of leafy shoot readily caducous. Stems in cross-section with 2 layers of thicker walled epidermal-cells, stoloniferous stems mainly subterranean. Leaves typically of thick-walled cells, in 4 segments, connate at base, cross-section of each segment with 3–5 inner cells and 10–15 smaller outer epidermal-cells, outer cells small, 25 × 10 µm, regularly arranged. Slime hairs thick-walled. Sporophytes infrequent. Capsule terminal, usually single.


Phenology: Capsules mature late summer–early fall (Jul–Sep).
Habitat: Uncommon to rare on moist soils and shaded banks, slopes and over rocks in tundra
Elevation: low to moderate elevations (70-700 m)

Distribution

V27 3-distribution-map.gif

Alaska, Asia (China in Yunnan), Asia (India in Sikkim), Asia (Nepal)

Discussion

Takakia ceratophylla appears to be somewhat tolerant of desiccation. Frequently it grows with other drought-tolerant bryophytes such as Andreaea and Gymnomitrion. The shoots are more rigid than those of T. lepidozioides, and leaf arrangement is more regular. Rhizomatous shoots are predominantly subterranean.

Selected References

None.

Lower Taxa

None.
... more about "Takakia ceratophylla"
John R. Spence +  and Wilfred B. Schofield +
(Mitten) Grolle +
Lepidozia ceratophylla +
thick-walled +
smaller +
fugacious;rarely persistent +
green becoming brown +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Alaska +, Asia (China in Yunnan) +, Asia (India in Sikkim) +  and Asia (Nepal) +
low to moderate elevations (70-700 m) +
Uncommon to rare on moist soils and shaded banks, slopes and over rocks in tundra +
arranged +, 3-ranked +  and spaced +
connate +
spreading +  and erect +
forked +  and terete +
reduced +
Capsules mature late summer–early fall (Jul–Sep). +
Oesterr. Bot. Z. +
straight +
persistent +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
longitudinal +
stoloniferous +
subterranean +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
white +, pale +  and creeping +
Takakia ceratophylla +
species +