120 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



I VOL. 11 



PUERTO RICO: El Yunque, Pagan 486 (NY) ; Steerc 4277, 4302, 7110 (Hb. Fulfordj ; 

 El Yunque, Luquillo Mts., Evans 57 (YU, NY) ; Ri'o de Maricao, 500-600 m, E. G. Britton 

 2682 (NY); Sierra de Naguabo, 465-720 m, Sbafer 3758 (NY); 8.1., SchwanecTce, (type B, 

 isotypes FH, G); Cerra de la Punta, Steerc 6241 (Hb. Fulford). 



GUADELOUPE: s.l., I'Herminier (as M. cuneistipulum) (G). 



MARTINIQUE: s.l., Buss 638 (as M. cuneistipulum) (G). 



HONDURAS: near Achote, Yunclcer 6615 p.p. (DPU). 



COSTA RICA: s.l., Werckle (YU, NY); Cartago: Santa Clara, Torres 219 J (F) ; 

 Zurqui, Standley 48091 (as B. phyllobola) (US). 



GUATEMALA: Alta Verapaz: near Coban, 1350 m, Turckheim 5425 (as M. phyllo- 

 bolum) (NY) ; same locality, Tiirckheim, in hb. Levier 5822 (as M. phyllobolum) (G). 



COLOMBIA: Serra do la Mascasena, Phillipson $ Idrobo 2131 p.p., 2158 p.p. (BM) ; 

 Rio Miritiparana, Schultes $• Cabrera 15789 (FH) ; Rio Papuri. Schultes 4' Cabrera 19458 

 (FH). 



VENEZUELA: Serrania Paru, Cowan $ Wurdack 31268 (NY); above Maturin near 

 Las Trinchieras, Alston 5586 (BM). 



BRITISH GUIANA: Mt. Roraima, McConnell # Quelch, 3341, 11 p.p. (G). 



BRAZIL: Rio de Janeiro, Glaziou (NY) ; Rio de Janeiro, Glaziou 4532, type of M. 

 parvum (FH) ; Rio Negro & Uaupes, Spruce (as B. bidens) (YU, NY); Mansios and Sah 

 Carlos, Spruce (as B. bidens var.) (YU, NY). Minas Gerais: Cafaga, Wainio 13 (as M. phyl- 

 lobolum) (G). 



ECUADOR: Mt. Chimborazo, Spruce, isotype of B. triehodea Spruce (NY*); Sprite, with 

 B. leptostipa (NY). 



SUBGENUS TRIDENTATAE 



The plants of this subgenus are characterized by three-toothed leaves, 

 although in a few species the teeth are inconspicuous or the leaves are undivided. 



Section 1. Grandistipulae 



The plants of this section may be very large to small. The leaves lack a vitta 

 (only rarely is it faintly developed) and conspicuous ventral auricles or ap- 

 pendages (except in B. arciiata and B. denticulata) . The margins of the teeth 

 are entire (except that they are crenulate and toothed in B. denticulata, and 

 serrate in B. serrata and B. chimborazensis) . The line of leaf insertion is 

 oblique and curved in the upper portion or oblique and hook-form at the upper 

 end. The underleaves are attached in a straight or sometimes a curved line. 

 They are always free from the leaves. 



7. Bazzania affinis (Lindenberg & Gottsche) Trevisan. Mem. 1st. Lomb. 13: 

 415. 1877. 



Mastigobryum affine Lindenberg & Gottsche in G. L. & N. Syn. Hep. 720. 1847. Non 



M. affine Mitten in Hooker, Bot. Ant. Voy. 2 2 (Fl. N. Zel.): 147. pi. C. f. 4. 1854. 

 Mastigobryum lindigii Stephani, Hedwigia 25: 203. pi. 3, f. 44-4.5. 1886. 

 Bazzania lindigii Spruce, Mem. Torrey Club 1: 129. 1890. 



Mastigobryum inciso-bilobatum Stephani in Herzog, Biblioth. Bot. 87: 224. /. 10-'/. a b, 

 1916. 



Plants of medium size, scattered or in pale yellow-green to olive-green 

 mats ; stems slender, to 5 cm or more long, with leaves 2—3 mm broad, prostrate ; 

 lateral branches 0.5-1.5 cm apart, diverging at a wide angle ; flagelliform 

 branches frequent, long; rhizoids on the bases of the underleaves. Leaf insertion 

 little curved in the upper part. Leaves approximate to imbricate, ascendent, 

 spreading, sometimes deflexed when dry. asymmetrically ovate. 1.0-1.6 mm 

 or more long, 0.56-0.8 mm broad at the base, narrowed to the transversely 

 truncate, tridentate apex; teeth deltoid, acute, four to six cells long and broad; 



