Difference between revisions of "Climacium"
in F. Weber, Naturh. Reise Schweden, 96. 1804.
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name=Climacium | name=Climacium | ||
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|genus=Climacium | |genus=Climacium | ||
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-->[[Category:Treatment]][[Category:Climaciaceae]] | -->[[Category:Treatment]][[Category:Climaciaceae]] | ||
Latest revision as of 21:38, 5 November 2020
Plants coarse, glossy or dull. Leaves erect to erect-spreading, loosely imbricate when dry or moist, ovate, somewhat concave, sulcate-plicate; base ± cordate; margins in stem leaves nearly entire to denticulate distally, in branch leaves serrulate nearly to base, coarsely serrate in distal 1/3–1/2; apex acute or obtuse, sometimes short-apiculate. Sexual condition with archegoniate plants similar to antheridiate plants; perigonial and perichaetial buds distal on secondary stems near branch bases, or proximal on branches; perichaetial leaves erect, sheathing, elongate, membranous, margins entire, apex abruptly acuminate, ecostate or costa weak. Seta orange-brown to reddish. Capsule red-orange to red-brown.
Distribution
North America, Mexico (Veracruz), Eurasia, Atlantic Islands (Iceland), Pacific Islands (New Zealand), Australia.
Discussion
Species 3 (2 in the flora).
Climacium is distinguished by abundant paraphyllia, single costa, cordate leaf bases, erect capsules, and fully developed double peristome. According to H. A. Crum and L. E. Anderson (1981), the columella is persistent and exserted after dehiscence. Both species in the flora area may have hyaline decurrencies only one or two cells wide descending from the alar region. Climacium japonicum Kindberg is known from eastern Asia.
Plants in Climacium show strong phenotypic variability; in drier habitats the erect secondary stems are shorter and branches more tightly crowded (A. J. E. Smith 2004); with increasing wetness the stipe is more elongate and the distal secondary stems are more frondose. Variation between specimens of Climacium occurs also in thinness and angularity of cell walls and strength of red coloration near the leaf insertion and adjacent to the costa; these traits are probably associated with habitat shade and degree of moisture.
Selected References
None.
Lower Taxa
Key
| 1 | Branch leaf medial laminal cells (6-)7-13:1; stem leaf apices obtuse, often abruptly apiculate; branch leaf bases not or somewhat auriculate, apices obtuse; stem leaf laminal cells near insertion with walls thin, not porose; capsules shortly oblong-cylindric, 1.5-3(-4) mm. | Climacium dendroides |
| 1 | Branch leaf medial laminal cells (2-)3-5(-7):1; stem leaf apices broadly to sharply acute, sometimes apiculate; branch leaf bases sharply flexuose-auriculate, apices acute; stem leaf laminal cells near insertion with walls thick, porose; capsules long-cylindric, 3.5-6 mm. | Climacium americanum |