Bazzania robusta Spruce

  • Authority

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

  • Family

    Lepidoziaceae

  • Scientific Name

    Bazzania robusta Spruce

  • Description

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    Species Description - Plants large, yellow-brown, becoming deeply pigmented in the older portions ; stems robust, 10 cm or more in length, with leaves to 5 mm broad; lateral branches frequent, 1 cm or more apart, diverging at a wide angle; flagelliform branches frequent, long, the scale-leaves large, ovate, broader than the branch. Leaves densely imbricate, strongly deflexed when dry, asymmetrically ovate, strongly falcate, 2.5-3.5 mm long, 1.5 mm broad at the base, narrowed to the mostly transversely truncate, tridentate apex; the dorsal margin arched from a cordate base, the ventral auricle large, undulate, or with an occasional tooth, without appendages; teeth spreading, long, acute to acuminate, eight to ten cells long, four to six-cells broad at the base, the margins entire, undulate; leaf-cells thin-walled, becoming thickened, the trigones very large, knot-like, the pits narrow, the cell walls often obliterated by the enlarging trigones, the lumina stellate, the cuticle faintly verruculose; cells of the apical portion large, 32-36 X 24 µ. Underleaves imbricate, large, round-quadrate, averaging 0.6 mm, long and broad, the base cordate, the auricles mostly rounded, entire, undulate, lobed or faintly toothed, the lateral and apical margins undulate, faintly lobed, obscurely toothed to entire. Female branches occasional, the bracts of the intermediate and innermost series long-ovate, divided to one-fourth or one-sixth their length into two or three slender, serrate to spinose laciniae, with cells to 64 mm long, thin-walled. Perianth to 6 cm long, the mouth ciliate-laciniate, the cells to 64 µ long, thin-walled. Male branches and sporophyte not seen. Fig. 44, a-e.

  • Discussion

    Mastigobryum robustum Stephani, Spec. Hep. 3: 501. 1908. Mastigobryvm javitense Stephani Spec. Hep. 3: 528. 1909.

  • Distribution

    Habitat: In humid forests, in deep ascending tufts, on decaying logs and rocks and on trunks and branches of trees.

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