1966] 



LEAFY HEPATICAE OF LATIN AMERICA — PART II 



189 



COSTA RICA: S. Jose: Cerro de las Veultas, 2700-3000 m, Standley 43728 (Hb Herzog). 

 COLOMBIA: near Zipaquira, 2600-2750 m, Schultcs & Bell 11472 ? (FH). 

 VENEZUELA: Miranda: Pico de Naiguata, 2200-2765 m, Steyermark 62963 p.p., 

 62964 P P- (F). 



The species is widespread circumboreal in the Northern Hemisphere. 



6. Lepidozia aequiloba Stephani, Spec. Hep. 6: 319. 1922; Icon. Hep., 



Lepidozia No. 57. 



Plants small, in pale green mats or among other bryophytcs; stems slender, 

 2 cm or more long, pinnately branched, the branches short, rarely becoming 

 flagelliform near the tips. Line of leaf insertion very oblique. Stem leaves 

 approximate to imbricate, longer than broad, 0.6 mm broad at the base, quadrifid 

 to approximately one-fifth of their length; segments nearly equal, short, divergent, 

 the bases four or five cells broad, the apices acute, the sinuses broad, lunulate; 

 lamina long, the margins entire with the dorsal base curved; leaf cells quadrate- 

 rectangular, 14-19 /xXl4 /x, the walls thickened, the lumina rounded, the cuticle 

 smooth. Underleaves little broader than the stem, cuneate, quadrifid to one-half 

 their length, the segments widely divergent, narrowly triangular with uniseriate 

 tips. Male and female inflorescences and sporophyte not seen. PI. 40. Fig. 6, a-c. 



Habitat: Not known. 



VENEZUELA: Estado Bolivar: Ptari-tepui, 2410 m, Steyermark 59878 p.p. (F) ; 

 Caracas, Fendler (G). 



BRAZIL: Caraca, Wainio (type G). 



7. Lepidozia squarrosa Stephani, Spec. Hep. 3: 573. 1909; Icon. Hep., 



Lepidozia No. 79. 



Lepidozia durandii Stephani, Spec. Hep. 3: 568. 1909; Icon. Hep., Lepidozia No. 56. 

 Lepidozia costaricensis Stephani, Spec. Hep. 3: 573. 1909; Icon. Hep., Lepidozia No. 52. 



Plants small, in loose whitish to yellowish-green mats, or scattered among 

 other bryophytes; stems to 6 cm or more long, distantly pinnate or occasionally 

 bipinnate, the branches short often becoming flagelliform in the upper part, 

 ventral flagelliform branches scarce. Leaf insertion oblique. Stem leaves distant, 

 squarrose spreading, cuneate, averaging 0.3 mm long, 0.2 mm broad at the base, 

 quadrifid to one-half their length; segments equal or unequal, widely spreading, 

 triangular from a 3- to 6-celled base, ending in a one-, rarely 2-celled apex; dorsal 

 base of the lamina cordate, entire or occasionally with a one-celled tooth; leaf 

 cells at the base of a segment averaging 18-27 X 18 p., the walls thickened, the 

 trigones small, the lumina rounded, the cuticle smooth. Underleaves as broad as 

 the stem, squarrose spreading, quadrifid to one-half their length, the segments 

 narrow, two cells broad at the base and ending in a uniseriate row of two or 

 three cells, the sinuses broad, lunulate. Male and female inflorescences and 

 sporophyte not seen. PI. 41. Fig. 7, a, b. 



Habitat: On tree trunks and over bryophytes on rocks. 



COSTA RICA: without locality, Tonduz 2945 (type G) ; without locality, Pittier 

 2945 p.p., the type of L. costaricensis (G) ; summit of Volcan de Poas, 2644 m, Pittier 2944, 

 type of L. durandii (G-11252) ; without locality, Tonduz, Flora Costaricensis no. 2947, as 

 L. durandii (G-11253). San Jose: La Palma, San Ramon, Brenes 19020 (F) ; Colinas de 

 San Pedro de San Ramon, Brenes 19133 (F) ; Cerro de la Carpintera, Little 6567 (Hb Little); 

 Sierra de Talamanca, 7238 ft, s of Cartago, Little 5618 (Hb Little); s of El Empalma, Little 

 5631 p.p., 5638 (Hb Little). 



