1968] 



LEAFY HEPATICAE OF LATIN AMERICA PART III 



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decurrent, the leaf margin entire, undulate and with a suggestion of blunt teeth, 

 especially along the dorsal margin; cells of the border quadrate or wider than 

 long, often conspicuous on the upper margin, variable, 15-25 p high, 20-30 fi wide, 

 the walls uniformly thickened; cells of the apical region mostly 25-39 X 25-30 p, 

 the walls thin, the trigones small, distinct, the cuticle punctate. Underleaves broadly 

 ovate to orbicular, twice as broad as the stem, the apex broad, cleft, the segments 

 ending in a tooth 1-4 cells long. Male and female inflorescences and sporophyte 

 not seen. 



PI. 68. Fig. 8, a-e. 

 Habitat: On shaded rocks, damp soil and decayed logs in forests. 



CUBA: s.l., Wright ($), type of C. trichomanis var. p granulosa (G-1821). 

 JAMAICA: s.l., Marsh (NY). 



COLOMBIA: Amazonas: Rio Miritiparana, Cafio Guacaya, 700 ft, Schultes & Cabrera 

 15792 (FH). Vaupes: Rio Vaupes, 2500 m, Schultes & Cabrera 13943 (FH). 



VENEZUELA: Bolivar: Sierra Ichun, 625-725 m, Steyermark 90210 p.p., 90211, 90212, 

 90213 (VEN). 



BRAZIL: flumen Uaupes, Panure, Spruce, Hep. Sprue, (type MANCH-Kk 1707, isotypes 

 BM, MANCH, NY, S-PA, Y). S. Paulo: Alto da Serra, 900 m, Schiffner 404 p.p. (W, Hb 

 Fulford). 



9. Calypogeia cyclostipa (Spruce) Stephani, Spec. Hep. 3: 396. 1908. 

 Kantia cyclostipa Spruce, Trans. Proc. Bot. Soc. Edinb. 15: 411. 188S. 



Plants of medium to large size, olive-green tinged with brown, in depressed mats; 

 stems to 5 cm long, with leaves, to 2.5 mm wide, occasionally branched; branches 

 ventral-intercalary, leafy or rarely flagelliform or short sexual, solitary in the axils 

 of the underleaves; stem in transverse section with a unistratose layer of brownish 

 thick-walled cells surrounding the medulla of hyaline thin-walled cells. Rhizoids in 

 tufts, long, hyaline to brownish, from small cells of the basal part of the underleaves 

 and from the scale-leaves of the flagelliform branches. Line of leaf insertion oblique, 

 nearly horizontal. Leaves not bordered or appearing so only here and there, approxi- 

 mate to subimbricate, widely spreading, plane, often becoming decurved in the 

 outer part, more or less rectangular in outline, to 1.0 X 0.8 mm, the apex broad- 

 rounded, the dorsal base curved, the ventral base shortly decurrent, the leaf margin 

 entire; marginal cells 20 X 26 jx, or some longer, 32 X 26 /x, cells of the apical 

 region mostly 25-36 X 26-30 /x, the walls thin, the trigones inconspicuous to small, 

 the cuticle verruculose. Underleaves broadly ovate, below twice as broad as the 

 stem, tapering to a blunt-rounded, retuse or shortly cleft apex, the cells long, thin- 

 walled. Plants dioicous. Female inflorescence solitary, the bracts and bracteoles in 

 2 or 3 series, scale-like, remaining at the tip of the 2.5-3 mm long, club-shaped 

 perigynium. Male inflorescence not seen. 



PI. 68. Fig. 9, a-d. 

 Habitat: In mats on soil, prop roots and trees in humid montane forests. 



COLOMBIA: Meta: Cordillera La Macarena, Cafio Tiranas, 1700 m, Schultes 11233 p.p. 

 (FH). s.l., Moritz (G-1831). 



of a leaf, X 200. 8 c. Cell from the upper part of a leaf, X 500. 8 d. Underleaf, X 70. 8 e. 

 Portion of an underleaf, X 200. Drawn from the type. 



Fig. 9. C. cyclostipa. 9 a. Stem, ventral view, X 20. 9 b. Portion of the apical part of a 

 leaf, X 200. 9 c. Cell of the upper part of a leaf, X 500. 9 b. Portion of an underleaf, X 200. 

 Drawn from the type. 



