Micrisophylla setiformis (De Not.) Fulford
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Authority
Fulford, Margaret H. 1966. Manual of the leafy Hepaticae of Latin America--Part II. Mem. New York Bot. Gard. 11: 173-276.
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Family
Lepidoziaceae
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Scientific Name
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Description
Species Description - Plants long, slender, deep brown, in tufts or among other bryophytes; stems more or less erect, radial, to 5 cm long, with leaves to 0.65 mm broad, irregularly branched and with long brown stolons; lateral branches leafy, long, branched; ventral branches leafy, or flagelliform, or long brown, stolon-like, or enlarged, turgid and lighter in color with small leaves and long internodes and eventually bearing a female inflorescence; stems in transverse section with about 12 large cortical cells with thick walls surrounding the medulla of smaller, thinner-walled cells with trigones. Line of leaf insertion transverse. Leaves and underleaves alike, distant to approximate, erect-spreading, more or less concave, cuneate, to 5 mm long, 5 mm wide at the middle, the margins of the lamina entire or with a small tooth near the base, quadrifid to one-half of their length; segments divergent to somewhat incurved, six to eight, sometimes to ten cells wide at the base, triangular; leaf-cells at the base of the segments averaging 18 × 18 p, the walls uniformly thickened, the trigones inconspicuous, the cuticle verruculose. Plants dioicous. Male inflorescence on a short ventral sexual branch or terminal or becoming intercalary on a longer ventral branch, the bracts and bracteoles in five to ten series, the bracts concave, bifid or trifid, the bracteoles plane, bifid; antheridia one or two in the axils of the bracts. Female inflorescence (only one) terminal on a ventral leafy branch, the stem below the inflorescence enlarged, turgid, with small, distant leaves and underleaves, the bracts and bracteoles faintly keeled, the outer series lobed above, the inner series broadly rounded. Perianth and sporophyte not seen. Pl. 47. Fig. 1, a-f.
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Discussion
Lepidozia setiformis De Notaris, Mem. Real. Acad. Torino 16: 225. I. 13. 1857.
Maslifpiphora setiformis, Trevisan, Mem. Isl. Lomb. III. 4: 416. 1877.
Lepidozia obscura Angstrom ex Slephani, Spec. Hep. 3: 602. 1909; Icon. Hep, Lepidozia No. 137.
Lepidozia fusca Stephani, Sv. Vet.-akad. Handl. 46": 64. /. 24, h-i. 1911.
Lepidozia cunninghamii Stephani, Spec. Hep. 6: 322. 1922; Icon. Heji., Lepidozia No. 146.
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Distribution
Habitat: Abundant over moist rocks, in crevices and among Sphagnum, in bogs and wet thickets in Patagonia-Tierra del Fuego.
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