Trichocolea flaccida (Spruce) J.B.Jack & Steph.

  • Authority

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

  • Family

    Trichocoleaceae

  • Scientific Name

    Trichocolea flaccida (Spruce) J.B.Jack & Steph.

  • Description

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    Species Description - Plants of medium size, in pale yellow-green tufts; stems slender, 4-8 cm long, with leaves to 1 mm wide, irregularly pinnate to bipinnate, the branches mostly 5 mm long; stems in transverse section 8-12 cells across, the cortex of a unistratose layer of somewhat smaller cells; stem paraphyllia absent. Rhizoids in tufts from rhizoid pads on the lamina of the underleaves, long, the tips expanded to disc-shaped plates. Line of leaf-insertion oblique, the leaves succubous. Leaves distant to imbricate, spreading, asymmetric, to 1.5 mm long, 1 mm wide, divided to one-half or more of their length into four or five unequal branched segments; the segments narrowly triangular, the two or three branches of each segment opposite or whorled, the cilia long, few, simple or rarely branched, the cells long, the cuticle striolate-papillose; lamina four or five cells high, the cells averaging 62 X 19 µ.Underleaves 1.0 mm long, 0.3 wide, divided to one-fourth of their length into four (bisbifid) segments each with one to three cilia as in the leaf. Branch leaves and underleaves similar to those of the stem, smaller. Male inflorescence intercalary on a stem or branch, the bracts and bracteoles in ten or more series, the bracts concave, divided into five or six segments ; antheridia, large, globose, the stalk 12—14 cells long. Female inflorescences and sporophyte not seen. Fig. 8, a-d.

  • Discussion

    Leiomitra flaccida Spruce, Trans. Proc. Bot. Soc. Edinb. 15: 349. 1885. Trichocolea tomentosa var. canelensis Spruce ms Eepat. Spruc. Trichocolea patula Stephani, Spec. Hep. 4: 57. 1909. Trichocolea inaequalis Stephani, Spec. Hep. 4: 59. 1909. Trichocolea eggersiana Stephani, Spec. Hep. 4; 59. 1909. Trichocolea herzogii Stephani, Biblioth. Bot. 87: 230. 1916.

  • Distribution

    CUBA: Sierra di Gavilanes, León & Luna 6721 (NY).

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