Difference between revisions of "Campylopus schimperi"
Bot. Zeitung (Berlin) 22: 13. 1864,.
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|name=Campylopus subulatus var. schimperi | |name=Campylopus subulatus var. schimperi | ||
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|genus=Campylopus | |genus=Campylopus | ||
|species=Campylopus schimperi | |species=Campylopus schimperi | ||
Revision as of 21:02, 16 December 2019
Plants 1–3 cm, in compact tufts, light green above, brownish and tomentose below. Leaves 2.5–5 mm, appressed, from a narrow base gradually contracted to an acute, straight, concolorous subula; alar cells little differentiated, only slightly wider than the basal laminal cells; basal laminal cells thin-walled, hyaline, rectangular, at margins narrower, forming a small band; distal laminal cells chlorophyllose, rectangular, ca. 4:1; costa filling 1/2–2/3 of leaf width, shortly excurrent, in transverse section showing large adaxial hyalocysts, abaxial stereids absent, almost smooth at back. Specialized asexual reproduction frequently by deciduous stem tips. Sporophytes not known in North America.
Habitat: Soil in tundra habitats
Elevation: in alpine elevations, 2700-3400 m
Distribution
Greenland, B.C., Nfld. and Labr. (Nfld.), Yukon, Alaska, Colo., Europe, Asia (Bhutan, China, Japan, Nepal).
Discussion
Records of Campylopus schimperi from Mexico and the Andes are doubtful. The taxonomic value of this species has often been doubted. It was frequently regarded as a variety of C. subulatus, which is similar in several respects. Campylopus schimperi, however, has more elongate, distal laminal cells (1:4 instead of 1:1.5–2) and abaxially nearly smooth costa (ridged in C. subulatus). Furthermore, C. schimperi is a species of arctic-alpine habitats and C. subulatus is found at low elevations. These anatomical as well as ecological differences indicate that C. schimperi should be regarded as a separate species.
Selected References
None.