Triandrophyllum fernandeziense (S.W.Arnell) Grolle

  • Authority

    Fulford, Margaret H. 1963. Manual of the leafy Hepaticae of Latin America--Part I. Mem. New York Bot. Gard. 11: 1-172.

  • Family

    Herbertaceae

  • Scientific Name

    Triandrophyllum fernandeziense (S.W.Arnell) Grolle

  • Description

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    Species Description - Plants of small to medium size, olive-green becoming light brown, in cushions or mats; stems slender, to 4 cm long, with leaves to 3 mm wide, irregularly branched, the branches ventral-intercalary, long, leafy or flagelliform; stem in transverse section with the cells of the cortical band in one or two layers, thick-walled and smaller than the cells of the medulla. Rhizoids not seen. Leaves widely spreading, long, narrowly ovate to oblong-ovate, to 1.3 mm long, to 6 mm wide, asymmetric, the dorsal margin convex, entire, or with an occasional tooth near the base, the ventral margin with spines and cilia in the lower half, the ventral base more or less auriculate, bifid to one-fifth or one-fourth of their length; segments triangular from a 4- to 6-celled base, acute, the sinus broad, rounded; leaf-cells of the base of the segments 18-28 X 18 µ, the walls uniformly thickened, the trigones small, the cuticle coarsely papillose. Underleaves ovate, to 5.06 mm long, 0.3 wide (the lamina), less than half the length of the leaf, bifid, the margins long-spinose to ciliate. Plants dioicous. Male inflorescence terminal (becoming intercalary?), the bracts and bracteoles in few pairs, similar to the leaves and underleaves, slightly larger, more or less pouched, antheridia in the axils of both the bracts and bracteoles. Female inflorescence and sporophytes not seen. Fig. 4, a-f.

    Distribution and Ecology - Habitat: On bark and branches in humid forest.

  • Discussion

    Acromastigum fernandeziense S. Arnell, Ark. Bot. II. 4: 10. f. 1 a-d. 1957.