1962] 



LEAFY HEPATICAE OF LATIN AMERICA — PART I 



99 



BRITISH GUIANA: Mt. Roraima, Quelch (type G) ; Roraima, McConncll 528 (as 

 S. grandifolium) (G). 



5. Herberta acanthelia Spruce, Trans. Proc. Bot. Soc. Edinb. 15: 341. 1885. 



Schisma acanthelium (Spruce) Stephani, Spec. Hep. 4: 11. 1909. 



Schisma lechleri Stephani, Spec. Hep. 4: 12. 1909. 



Schisma granatense Stephani, Spec. Hep. 4: 14. 1909. 



Schisma boliviense Stephani, Spec. Hep. 6: 358. 1922. 



Herberta boliviensis (Stephani) Herzog, Repert. Sp. Nov. 58: 68. 1955. 



Herberta inaequalis Herzog, Sv. Bot. Tidskr. 46: 81. /. 14. 1952. 



Plants of medium size, dark brown to blackish, in tufts; stems stout, to 15 

 cm long, with leaves 2-3 mm wide (when dry), rarely branched. Line of leaf 

 insertion transverse. Leaves irregularly spreading, the bases imbricate, strongly 

 asymmetric, falcate, 3-4 mm long, to 1.6 mm wide at the base, unequally bifid 

 to one-half of their length ; segments broadly triangular, tapering to an acumi- 

 nate, 3-8-celled apex, the cells quadrate in outline, the dorsal segment broad, 

 the vitta about one-fourth the width of the base of the segment, ending well 

 below the apex, the ventral segment smaller, decurved ; lamina broadly ovate, the 

 dorsal margin strongly convex, long-ciliate in the lower half, the vitta bifurcate a 

 little below the sinus; leaf-cells with rounded trigones and intermediate thicken- 

 ings separated by thin-walled pits, the cuticle rough. Underleaves as long as the 

 leaves, symmetric, the vitta, apices and cells as in the leaf. Plants dioicous. 

 Female bracts and bracteoles in four to six series, the innermost series large with 

 deep folds, the margins of the lamina ciliate, the numerous multicellular cilia 

 decurved, the segments broadly triangular, long-pointed, the margins ciliate 

 and serrate. Perianth (immature) deeply 3-parted, the divisions bilobed ; seg- 

 ments long-tapering from a very broad base, the margins ciliate and serrate, 

 the slime papillae numerous. Male inflorescence and sporophyte not seen. Fig. 



5, a-k. 



Habitat : On trees, mountain forests. 



COLOMBIA : Paramo de Sonson, without collector, type of S. granatense (G) ; Los 

 Gagues, 10,700 ft, Alston 7487b (BM) ; Andes Bogotenses, Weir (NY). 



ECUADOR: Azuay: Sevilla de Oro, 3400 m, Harling 2338, type of H. inaequalis (Hb. 

 Herzog) ; s.l., Espinoza (Hb. Herzog) ; Tungurahua, Spruce, Hep. Spruce, type (isotypes 

 NY, G); El Altar, 4000 m, Meyer (Hb. Herzog). 



PERU: Tatanara, Lechler, type of S. lechleri (G). 



BOLIVIA: between San Mateo and Sunehal, Herzog 4494, type of H. boliviense (type 



G, isotype Hb. Herzog) ; N. Yungas, E. Schmidt (HB. Herzog) ; Vallio Pa jonal, 4000 m, 

 Herzog 3256 (as S. limbatum) (Hb. Herzog). 



The report in the literature from Costa Rica (Stephani, 1893a), probably refers to 



H. limbata. 



This species is readily recognized by its large, asymmetric leaves, with uni- 

 seriate tips of three to eight quadrate cells. 



6. Herberta serrata Spruce, Mem. Torrey Club 1: 128. 1890. 



Schisma serratum (Spruce) Stephani, Spec. Hep. 4: 115. 1909. 



Schisma brasiliense Stephani, Spec. Hep. 4: 16. 1909. 



Schisma subserratum Stephani, Spec. Hep. 4: 17. 1909 



Schisma capillifolium Herzog, Repert. Sp. Nov. 21: 26. pi. 11, f. 3. 1925. 



Herberta cancerina Herzog, Revue Bryol. Liehenol. 11: 25. /. 4 a-d. 1938. 



Herberta stenoschizon Herzog, Revue Bryol. Liehenol. 11: 27. /. 5 a-d. 1938. 



Herberta peCtinata Herzog, Revue Bryol. Liehenol. 11: 27. /. 4 e-g. 1938. 



Plants of medium to large size, brown with yellow-brown tips, in tufts; stems 



