1962] 



LEAFY HEPATICAE OF LATIN AMERICA — PART I 



49 



1911), Argentina (Kiihnemann, 1949), Tierra del Fuego (Gola, 1923) and Juan Fernandez 

 (Arnell, 1957; Herzog, 1942a). 



The species is also reported from Tristan da Cunha (Arnell, 1958) and Australia (Stc- 

 phani, Spec. Hep., 1909). 



7. Trichocolea brevifissa Stephani, Spec. Hep. 4: 54. 1909. 



Trichocolca subquadrata stephani, Spec. Hep. 4: 53. 1909. 

 Trichocolea cubensu Stephani, Spec. Hep. 4: 54. 1909. 



Plants of medium size, in pale yellowish-green tufts ; stems 3-4 cm long, with 

 leaves to 2 mm wide, pinnate to bipinnate, the branches mostly 3-^4 mm long ; 

 stems in transverse section to 16 cell across, the cortial band of one to two 

 layers of smaller cells; stem paraphyllia absent. Rhizoids not seen. Line of leaf 

 insertion oblique, the leaves succubous. Leaves distant to approximate, spread- 

 ing, to 1 mm long, with leaves to 1.5 mm wide, divided to one-fourth or one-third 

 of their length into four or five short, branched segments ; segments usually 

 bifid, the cilia short, simple or rarely branched, single and in pairs or whorled, 

 the cells averaging 83 X 16 |x, the cuticle striolate-papillose ; the lamina eight to 

 fourteen cells high, asymmetric, the cells averaging 58 X 26 fi. Underleaves 

 smaller, to 0.7 mm long, 1 mm wide, divided to one-half of their length into 

 usually four branched segments, the cilia as in the leaf, a rhizoid disc without 

 rhizoids often developed on the lamina. Branch leaves and underleaves similar 

 to those of the stem, smaller. Male inflorescence intercalary or terminal on a 

 stem or branch, the bracts and bracteoles in five or more series, the bracts con- 

 cave, to 0.8 mm long, 1.3 mm wide; antheridia large, globose, solitary, the stalk 

 14—16 cells long. Female inflorescence and sporophyte not seen. Fig. 7, a-d. 



Habitat : On bark of trees and on leaves. 



CUBA : s.l., Wright, type of T. cubensis (G) ; Yunclcer 12590 (DBU). 



JAMAICA: Abbey Green, Orcutt 5284 (US, BM) ; near Cuna Cuna Gap, Maxon 8988 

 (US); Hardwar Gap, Baxter 24 (KANU) ; Morce's Gap, Philipson 1219 (BM); Mossman's 

 Peak, M. Farr 734 Sir John Peak, Philipson 1088b (BM) ; summit of Morne Quimby, Proctor 

 1481 (IJ). 



DOMINICAN REPUBLIC: La Vega: Loma Campana, Allard 18636 (BM). 

 PUERTO RICO: s.l., Sintenis 84 (as T. subquadrata) (G) ; Mt. Torricella, Britton, 

 Cowell # Brou n (NY) ; near Las Picachos, Pagan 322 (FH). 



DOMINICA: Morne Diablotin, Elliott 1009, 1061a, 1071c p.p., 2190, 2218 (BM). 

 MARTINIQUE: s.l., Perrotet 36 (as T. subquadrata) (G). 



TRINIDAD: s.l., Criiger (as T. subquadrata) (G, FH) ; Mt. Tucuche, Britton, Colcer, 

 Bowland 1475, 1483 (NY). 



BRAZIL : s.l., Vie, (type G) ; S. Catarina: Campo dos Padres, 2000 m, Beitz 2.545, 2.565. 

 S. Paulo: Campo Grande, Schiffner 461 (W). 



Additional reports of the species, in the literature, include, Cuba (Welch, 1950), Jamaica 

 (Pearson, 1931), Gaudeloupe (Jovet-Ast, 1960) and Brazil (Stephani, 1903a). 



8. Trichocolea flaccida (Spruce) Jack & Stephani, Hedwigia 31: 14. 1892. 



Leiomitra flaccida Spruce, Trans. Proc. Bot. Soc. Edinb. 15: 349. 1885. 

 Trichocolea tomentosa var. canelensis Spruce ms Hepat. Sprue. 

 Trichocolea patula Stephani, Spec. Hep. 4: 57. 1909. 

 Trichocolea inaequalis Stephani, Spec. Hep. 4: 59. 1909. 

 Trichocolea eggersiana Stephani, Spec. Hep. 4: 59. 1909. 

 Trichocolea herzogii Stephani, Biblioth. Bot. 87: 230. 1916. 



Plants of medium size, in pale yellow-green tufts; stems slender, 4—8 cm 

 long, with leaves to 1 mm wide, irregularly pinnate to bipinnate, the branches 

 mostly 5 mm long; stems in transverse section 8-12 cells across, the cortex of 

 a unistratose layer of somewhat smaller cells ; stem paraphyllia absent. Rhizoids 

 in tufts from rhizoid pads on the lamina of the underleaves, long, the tips 

 expanded to disc-shaped plates. Line of leaf-insertion oblique, the leaves suc- 

 cubous. Leaves distant to imbricate, spreading, asymmetric, to 1.5 mm long, 



