Campylopus albidovirens Herzog

  • Authority

    Frahm, Jan-Peter. 1991. Dicranaceae: Campylopodioideae, Paraleucobryoideae. Fl. Neotrop. Monogr. 54: 1-238. (Published by NYBG Press)

  • Family

    Dicranaceae

  • Scientific Name

    Campylopus albidovirens Herzog

  • Type

    Type. Bolivia. "Quellwiesen an der Waldgrenze über Tablas," Herzog 2782 (holotype, JE; isotypes, B, H-BR, FH, NY, S).

  • Synonyms

    Campylopus guatemalensis E.B.Bartram

  • Description

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    Species Description - Plants pale yellowish green or whitish green, in dense mats. Stems to 3 cm high, equally foliate, reddish tomentose below. Leaves erect, ca. 4-5 mm long, from an ovate base gradually narrowed to an acumen of varying length. Costa filling of the leaf base, excurrent, denticulate at the extreme apex, in transverse section with ventral hyalocysts, median chlorocysts and dorsal hyalocysts alternating with chlorocysts, grad- ually merging with the lamina, slightly ribbed at back. Alar cells conspicuous, inflated, reddish or hyaline, occupying part of the costa. Basal laminal cells rectangular, hyaline, thin-walled, 16-38 × 58-90 µm, narrower at margins. Upper laminal cells irregularly rectangular, 13-26 × 39 µm, vanishing near midleaf. Setae 15 mm long, pale brown, curved and twisted. Capsules 2 mm long, pale brown, cylindric. Opercula long rostrate. Vegetative propagation by means of small microphyllous branches in the axils of the upper leaves.

  • Discussion

    This species resembles the genus Paraleucobryum in its very broad costae, alar cells protruding into the costa and the lamina vanishing near midleaf. More importantly, the transverse section of the costae with ventral and dorsal hyalocysts and median and dorsal chlorocysts closely resembles the costa of Paraleucobryum ongifolium, from which it differs only by a few substereidal dorsal cells in the middle of the leaf. The relationship of this species to Campylopus is based entirely on its cygneous setae of the Sporophyte, which has been found only once in Colombia.

    Campylopus albidovirens is closely related to C. pittieri Williams, which has, however, no alar cells, a more turgid, leucobryoid appearance, and the costa narrowed at leaf base with broader, laxer ventral cells of the costa. Campylopus pittieri is a paramo species, whereas C. albidovirens is a species of montane forests. These species can be regarded as a species pair that has developed from a common ancestor by means of ecological differentiation.

    This species varies considerably in the length of the leaf tip, which is longer in shaded, humid habitats.

    At high elevations this species produces microphyllous branches in the axils of the upper leaves that resemble those of C. areodictyon. Both species are similar in the leaf structure and can be easily confused. They are distinguished only by the transverse section of the costa, which has dorsal groups of stereids in C. areodictyon but only substereids in C. albidovirens.

    Distribution and ecology: On rocks, soil and wood. In Mexico in coniferous forests, south of Mexico in open places in montane rainforests from 2500 m to the forest-line and in subalpine forests and thickets up to 4000 m; Mexico, Guatemala, Costa Rica, Hispaniola (Dominican Republic), Colombia, Venezuela, Ecuador, Peru, Bolivia.

  • Objects

    Specimen - 597079, Bro. Amable 1906, Campylopus albidovirens Herzog, Dicranaceae (24.0), Bryophyta; North America, Mexico, México, Toluca Mun.

    Specimen - 01086101, T. C. J. Herzog 2782, Campylopus albidovirens Herzog, Dicranaceae (24.0), Bryophyta, isotype; South America, Bolivia

  • Distribution

    Mexico North America| Hidalgo Mexico North America| México Mexico North America| Michoacán Mexico North America| Oaxaca Mexico North America| Guatemala Central America| Costa Rica South America| Alajuela Costa Rica Central America| Colombia South America| Boyacá Colombia South America| Cundinamarca Colombia South America| Venezuela South America| Junín Peru South America| Venezuela South America| Mérida Venezuela South America| Ecuador South America| Peru South America| Ancash Peru South America| Ayacucho Peru South America| Bolivia South America| Cochabamba Bolivia South America| La Paz Bolivia South America|