1966] 



LEAFY HEPATICAE OF LATIN AMERICA — PART II 



205 



Plants large, robust, greenish-brown to dark reddish-brown, in dee]) tufts or 

 mixed with other bryophytes; stems large, coarse, to 10 cm long, with leaves 

 0.8-1.2 mm broad, regularly bipinnate, dendroid, the lateral branches 5 mm apart, 

 10-15 mm long, becoming attenuate, long flagellifonn at the tips, the ventral 

 branches not seen. Line of leaf insertion subtransverse to oblique, decurved at 

 the dorsal end. Stem leaves large, subimbricate, concave-cucullate, saccate, very 

 broadly ovate, 0.8-1 mm long, 0.8-1 mm broad at the base, the lamina broadly 

 orbicular, the dorsal margin strongly convex and covering the stem, semicordate 

 to auriculate, appendiculate, entire or with occasional long-celled spines and cilia, 

 ventral margin very short, with cilia or teeth, quadrifid to one-fourth of their 

 length or less; segments narrow-triangular from a 2-, 4-, or 8-celled base and 

 ending in a uniseriate tip of three or four cells 36 n or more long; cells of the base 

 of the segment mostly 16-22 x 16 n, the walls thickened, the cuticle smooth. Stem 

 underleaves distant, as broad as the stem, orbicular, divided to one-fourth of 

 their length into four or six segments with a few cilia between, the segments two 

 to four cells broad at the base, ending in a uniseriate tip of four or five cells, 

 each cell 36 /i or more long, the margins of the lamina sparsely ciliate. Branch 

 leaves with more segments and supplementary teeth and cilia, the branch under- 

 leaves often with so many teeth and cilia that segments as such are not to be 

 recognized. Sexual branches and sporophytes not seen. Fig. 23, a-c. 



Habitat: Not given. 



COLOMBIA: Cauca: Paramo de Las Papas. 3200-3510 m, Bischler 904 (COL); Valle: 

 Los Farallones, 3500-3600 m, Cuatrecasas 17939B p.p. (US). 



VENEZUELA: Merida: Pico Espejo, 3350 m, Magdejrau 652 (Hb Fulford). 

 ECUADOR: Azuay: Rio Collay, s of El Pan, 2650-3290 m. Steyermark 53374 (F). 

 BOLIVIA: Tablas, 3400 m, Herzog 2829 (type G). 



24. Lepidozia pinnaticruris Spruce ex Stephani, Spec. Hep. 3: 579. 1909; 

 Icon. Hep., Lepidozia Xo. 75. 



Plants robust, olive-green to light brown, in large tufts or among other bryo- 

 phytes; stems large, to 10 cm long, with leaves to 1.5 mm broad, ascending, 

 bipinnate, the lateral branches 3 mm apart, sometimes becoming attenuate- 

 flagelliform, to 2 cm long, ventral branches not seen. Line of leaf insertion 

 oblique to subtransverse. Stem leaves imbricate, asymmetric, concave, to 1 mm 

 long, to 1.2 mm wide at the base, quadrified to two-thirds; segments regularly 

 ciliate with three or four pairs of opposite cilia, the base of the segment broad, 

 the cells 18-27 x 16-18 p, the cells of the cilia 24-27 X 10-15 the cuticle striolate. 

 Underleaves subquadrate, quadrified to one-half of their length, the segments 

 and margins ciliate as in the leaf. Female inflorescence frequent, one to several 

 on a stem, the bracts and bracteoles in four series, the bracts of the inner series 

 quadrifid-laciniate to one-fourth of their length. Male inflorescence, perianth and 

 sporophyte not seen. PI. 43. Fig. 24, a, b. 



Habitat: On trees. 



COSTA RICA: Cocos I, Holdridge 5184 (NY). 



COLOMBIA: Valle: Cordoba, Dagua valley, 80-100 m, Killip 5089 (US); La Cumbre, 

 2100-2400 m, Killip 11370 (US). 



ECUADOR: Mt. Chimborazo, Spruce (type G-243). 



This large and very beautiful species looks like a large Trichocolea rather 

 than a Lepidozia. However, in Trichocolea the leaves are succubous and the 

 cilia of the leaves and underleaves are made up of very long cells, two or three 

 times as long as the cells of the cilia of L. pinnaticruris. 



