Monographs Details: Campylopus exasperatus var. lorentzii (M.Fleisch.) J.-P.Frahm
Authority: Buck, William R. 1987. Bryostephane Steereana: A Collection of Bryological Papers Presented to William Campbell Steere On The Occasion of His 80th Birthday. Mem. New York Bot. Gard. 45: 1-749.
Description:Distribution and Ecology - Distribution: India, peninsular Malaysia, New Guinea.Ecology: This variety has been collected in peninsular Malaysia on humus and soil from the summit of Gunung Tahan, Pahang and at elevation of 1900 m on Mt. Kinabalu.Specimens examined: MALAYSIA. Pahang: Gunong Tahan, Ridley 1019b (type of Thysanomitrion ridleyi, BM).
Pilopogon lorentzii Fleisch., Hedwigia 50: 280. 1911;
Thysanomitrion lorentzii (Fleisch.) Fleisch., Nova Guinea 12(2): 13. 1913; Campylopus lorentzii (Fleisch.) W . Schultze-Motel, Willdenowia 3: 407. 1963.
Thysanomitrion ridleyi Dix., Bull. Torrey Bot. Club 51: 227. 1924; Campylopus ridleyi (Dix.) Manuel, Fed. Mus. L 26(2): 161. 1981.
A variety differing in leaf tips which abruptly taper into a hyaline, serrate awn. This variety has been found scattered through the range of C. exasperatus. Whether the varietal level should be maintained is doubtful, since piliferous and muticous leaves have been found along the same stem (cf. Frahm et al., 1985). The two varieties also seem to have the same substrate preferences and altitudinal range (the types of Thysanomitrion ridleyi (=C. exasperatus var. lorentzii) and Thysanomitrion abbreviatum (=C. exasperatus var. exasperatus) were collected at the same locality).
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