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FNA | Family List | FNA Vol. 27 | Takakiaceae | Takakia

1. Takakia ceratophylla (Mitten) Grolle, Oesterr. Bot. Z. 110: 444, fig. 1. 1963.

Lepidozia ceratophylla Mitten, J. Proc. Linn. Soc., Bot. 5: 128. 1861

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.

Capsules mature late summer-early fall (Jul-Sep). Uncommon to rare on moist soils and shaded banks, slopes and over rocks in tundra; low to moderate elevations (70-700 m); Alaska; Asia (China in Yunnan, India in Sikkim, Nepal).

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.


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