1966] 



LEAFY HEPATICAE OF LATIX AMERICA — PART II 



219 



Lepidozia fusca Stephani. Sv. Vct.-akad. Handl. 46": 64. /. 24, h-i. 1911. 

 Lepidozia cunninghamii Stephani, Spec. Hep. 6 : 322. 1922; Icon. Hep., Lepidozia 

 No. 146. 



Plants long, slender, deep brown, in tufts or among other hryophytes; 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 intcrnodes 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 x 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. PI. 47. Fig. 1, a-f. 



Habitat: Abundant over moist rocks, in crevices and among Sphagnum in 

 bogs and wet thickets in Patagonia-Tierra del Fuego. 



PATAGONIA— TIERRA DEL FUEGO: Valparaiso, Niger, the type [not seen]. 

 Skyring, Pto Pinto. Halle & Skottsberg, [1907-09] 170, the type of L. fusca (type G-763, 

 isotype S-PA-107) ; Magellan Straits; Grappler, Husnot no. 41 p.prf (G-337 bis); Halt Bay, 

 Cunningham 95 (G) ; s.l., Andersson, ex Hb Stockholm, the type of L. obscura (G) ; Pto 

 Hapler, Cimningham, inter no. 174, ex Hb Kew, the type of L. cunninghamii (G-220) ; 

 Clarence I., Roivainen (S-PA) ; Desolation I., Pto Angosta. Dusen 206 (S-PA, NY), Dusen 

 (G), s.n., Hb H. Moller, without collector (?) (S-PA), Dusen, (S-PA), ex Uppsala Bot. Hb. 

 Dusen 175 p.p. (G) ; Fuegia, Dusen 206 (G-336.-337) ; Rio Azopardo, Dusen, 206 (S-PA); 

 Staten I., Spegazzini, Hb Massalongo 115-*, (neotvpe G-334), Pto Cook, Skottsberg [1901-02] 

 (S-PA). 



The species has also been reported in the following areas: Argentina (Kiihnemann, 1949, 

 Stephani, 1900b), Patagonia (Stephani, 1900a, 1900b, 1901a), Staten and Navarino Islands 

 (Massalongo, 1885, 1927), and Tierra del Fuego (Stephani, 1901a). 



The species also occurs in Tasmania ; Sandfly Road near Ludbergs, Weymouth, Hb Levier 

 1525 (G-335). It is another of the ever increasing group of plants with an Antarctic 

 distribution. 



2. Micrisophylla saddlensis (Bescherelle & Massalongo) Fulford, Brittonia 

 14: 128. /. 83-102. 1962. 



Lepidozia senlensis Bescherelle & Massalongo, Bull. Mens. Soc. Linn. Paris 1 (No. 79) : 

 637. 1886. 



Lepidozia saddlensis Bescherelle & Massalongo, (Separate from) Bull. Soc. Mens. Linn. 



Paris 1 (No. 79-80) : 8. 1886. [Not a reprint.] 

 Lepidozia diversijolia Stephani, Sv. Vet.-akad. Handl. 46°: 62. /. 23, c-e. 1911; Icon. 



Hep., Lepidozia No. 149. 



Plants filiform, dark brown to blackish, in tufts or among other bryophytes; 

 stems slender, more or less erect, radial, to 3 cm long, with leaves to 0.32 mm 



