1962 J 



LEAFY HEPATICAE OF LATIN AMERICA — PART I 



7:i 



CUBA: s.l., Wright (BM). 



DOMINICAN REPUBLIC: s.l., Eggers (BM). 

 GUADELOUPE: s.l., I'Herminier (BM) ; s.l., Duas 69 (G). 

 TRINIDAD: s.l., Criiger (BM). 



BRAZIL: Rio de Janeiro, Glaziou 1161 (NY), Glaziou 4536 (NY, SPA), Glaziou 

 11756 (G, NY, BM), Glaziou 4535 (BM, S PA), Glaziou (FH), Gardner (BM), Dusen 8 

 (as /. auberti £. aquatica) (G) ; ificr* 255 (BM) ; s.l., Dwsen. (S PA); s.l., Mosen 274 (G, 

 S-PA) ; s.l., without collector's name (as J. serrulata brasiliensis elongata) (S-PA) ; S. 

 Francisco, Schenk (BM); Sierra Estrella, Sellow (BM, G) ; Sierra de Cubatao, Guillcmin 

 (BM), Lindberg (as /. serrulata purpurascens) (BM); Serra do Mar, Vie 80 (BM, G) ; 

 Carac;a, Wainio (BM), Wainio 47 (G) ; Petropilis, Rudolph (BM); Thermopilis, Lutz 2104 

 (BM); ltajahy, Puiggari, (BM) ; Blumenau, Vie 172 (G, BM) ; s.l., Vie 165 (G) ; S. Cata- 

 rina, Vic 55 (G) ; Serra do Orgaos, Martius 10 (G) ; s.l., Beyrich (S-PA); Apiahy, Puig- 

 gari 686, 762 (G); Caldas, Eegnell 40 (S-PA); Santos Alte da Lima, MosSn 33 (G, FH, 

 S-PA), Mosen 83 (NY, S-PA); Alto da Serra, Hoehne (Hb. Herzog) ; s.l., Glaziou 22607 

 (BM); s.l., Sellow (BM, FH, S-PA); s.l., Schenk (BM) ; s.l., Raddi (G) ; s.l., Vie 171 

 (FH, G) ; s.l., Gardner 22 (G) ; s.l., Wainio (BM) ; s.l., Burchell 2225 (NY) ; s.l., ex Hb 

 Montague (S-PA) ; s.l., Beyrich (S-PA) ; s.l., Martius (S-PA) ; s.l., Martius (S-PA) ; s.l., 

 Vie 270 (BM). 



The species has also been reported from Brasil by Angstrom (1876b). 



8 Isotachis lindigiana Gottsche, Ann. Sci. Nat. V. 1: 123. 1864. 



Plants of medium to large size, bright red to reddish-brown or green with 

 red-tipped teeth, ascending to erect, in tufts or cushions ; stems 4-6 cm long, 

 with leaves to 2 mm wide, irregularly branched ; stems in transverse section 

 12-13 colls across, the cortical cells in two layers, the walls very thick, the cells 

 smaller than those of the medulla. Rhizoids not seen. Leaves imbricate, patent, 

 asymmetric, ovate, bifid to one-third of their length ; segments bluntly triangu- 

 lar, the sinus V- or U-shaped, the leaf margin including the sinus uneven, serru- 

 late, rarely dentate with small teeth ; cells of the median portion of the lamina 

 averaging 54 X 22^, the walls uniformly thin, without trigones; cells of the 

 margin and segments smaller, with thicker walls and trigones, the cuticle smooth 

 to minutely striolate-papillose. Underleaves smaller than the leaves, ovate to 

 orbicular, bifid to one-third of their length, the segments blunt, the margins as 

 in the leaves. Female bracts and bracteoles similar to the leaves and underleaves, 

 larger, the margins of the bracteoles dentate with large, occasionally branched 

 teeth. Perigynium conic-eylindric, 5-6 mm long, arcuate. Male inflorescence and 

 sporophyte not seen. Fig. 8, a-e. 



Habitat: On soil. 



COLOMBIA: Bogota, Weir (NY), Lindig 1702, (type, S-PA, isotypes G, BM), Lindig 

 (FH), E. Troll 2063a (as f. minor) (Hb. Herzog). 



ECUADOR: Quito, Jameson (NY, BM) ; Pichincha, Jameson 137 (BM). 



BOLIVIA: Yungas, Busby 5037 (NY, BM) ; Nuduar, Rusby 5038 (NY); Tablas, 

 Eerzog 2783 (S-PA). 



9. Isotachis grossidens Stephani, Sv. Vet.-akad. Handl. 46 9 : 69. /. 25, f-g. 1911. 



Plants of small to medium size, pale greenish-brown, ascending to erect, in 

 tufts or mats ; stems to 3 cm long, with leaves to 2.5 mm wide, irregularly 

 branched; stem in transverse section 8-12 cells in diameter, the unistratose 

 cortical layer of smaller cells than those of the medulla. Rhizoids absent. Leaves 

 widely spreading, concave to canaliculate, ovate, bifid to one-third or one-half 

 of their length ,the sinus V-shaped, the leaf margins entire or with one or a few 

 coarse teeth ; cells of the median portion of the lamina averaging 58 X 25 n, the 



