1968] 



LEAFY HEPATICAE OF LATIN AMERICA PART III 



303 



longitudinal. Leaves imbricate, ascendant, conspicuously bordered below, weakly so 

 above, asymmetric with the dorsal margin shorter, longer than broad, 0.7-0.9 X 

 0.6-0.7 mm, the ventral side strongly convex above, the apex bifid, the teeth 

 triangular from a 2- to 4-celled base, acute; cells of the ventral border near the 

 base 44-55 X 18 the end walls truncate, rarely oblique, the cells of the dorsal 

 border and upper margin 24-39 X 20 fi, the cells of the upper lamina 26-30 X 20 

 the walls thin, often brownish, the trigones small, distinct, the cuticle finely punctate. 

 Underleaves broader than the stem and broader than long, bisbifid to the middle, 

 10-12 cells broad at the line of attachment, the lamina large, the lateral margins 

 convex, bordered by longer cells, the segments uniseriate or narrowly triangular. 

 Male and female inflorescences and sporophyte not seen. 



PI. 73. Fig. 22, a-e. 

 Habitat: On damp soil and trunks of palm at low altitudes. 



COLOMBIA: Amazonas: Rio Miritiparana, Cano Guacaya, 700 ft, Schidtes & Cabrera 

 15793 (FH). 



BRAZIL: s.l., Vie 166 (type BM, G-12424). 



23. Calypogeia lechleri (Stephani) Stephani, Spec. Hep. 3: 412. 1908. 



Kantia lechleri Stephani, Hedwigia 34: S3. 1895. 

 Calypogeia contigua Stephani, in Hb. 



Plants of medium size, yellow- to olive-green becoming deeply pigmented with 

 brown, in depressed mats or among other bryophytes; stems to 2.5 cm or more long, 

 with leaves 1.5-2.3 mm broad, the stems often asymmetric or becoming small-leaved 

 for a distance, irregularly pinnate; branches leafy or rarely flagelliform, short or 

 long, ventral-intercalary from the axils of the underleaves; stem in transverse section 

 with a cortical layer of thin-walled cells slightly larger than those of the medulla. 

 Rhizoids in hyaline, yellowish, or brownish tufts from the bases of the underleaves. 

 Line of leaf insertion longitudinal but curved at the upper end. Leaves distant to 

 subimbricate, conspicuously bordered except near the apex, asymmetric, typically 

 subquadrate, more rarely broadly ovate, 0.6-0.8 mm long, 0.5-0.7 mm broad at the 

 middle, the dorsal side short, the apex shortly bifid, the teeth 1- to 3-celled, the 

 ventral side strongly convex above, the base decurrent (especially in small-leaved, 

 etiolated stems); leaf border of the lower two-thirds of the leaf, of elongate cells, 

 78-104 X 15-20 ix, with short oblique ends, the border of the upper part of the 

 leaf of cells 26-40 X 26 /jl, forming a coarsely crenulate margin from the projecting 

 cell angles; cells of the upper lamina 26-40 X 26-34 fi, the walls thin, the trigones 

 small or absent, the cuticle verruculose. Underleaves small, conspicuous, distant, 

 scarcely broader than the stem, bisbifid, the base 6-12 cells wide, the larger 

 segments 2-4 cells long, 1 or 2 cells wide. Male and female inflorescences and 

 sporophyte not seen. 



PI. 74. Fig. 23, a-e. 



Habitat: On soil and moist rocks in montane forests. 



COLOMBIA: Amazonas: Rio Apaporis, Schidtes & Cabrera 13202 (FH). Santander del 

 Norte: Catatumbo, cerca de Las Mercedes, 1000 m, Bischler 2290, 2591B, 2669C (G). 



VENEZUELA: Amazonas: Rio Orinoco, 'Camp II,' 1200 m, Maguire, Cowan & Wurdack 

 29925 p.p. (NY). Bolivar: Chimanta Massif, Abacapa-tepui, 1210-1600 m, Steyermark 75085 



Fig. 22. C. densifolia. 22 a. Stem, ventral view, X 50. 22 b. Upper portion of a leaf, 

 X 200. 22 c. Cell from the upper part of a leaf, X 500. 22 d. Cells of the dorsal border of a 

 leaf, X 200. 22 e. Portion of an underleaf, X 200. Drawn from the type. 



