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MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[VOL.. 11 



Mastigobryum portoriccnse Hampe & Gottsche, Linnaea 25: 348. 1852. 

 Mastigobryum cuervi Gottsche, Ann. Sci. Nat. Bot. V. 1: 141. 1864. 



Mastigobryum sylvaticum Gottsche, Husnot, Hep. Exsicc. (nomen nudum.) non -If. syl- 

 vaticum Stephani. 



Bazzania viridissvma Spruce, Trans. Proc. Bot. Soc. Edinb. 15: 375. 1885. 

 Mastigobryum viridissimum Stephani, Spec. Hep. 3: 522. 1909. 

 Mastigobryum uleanum Stephani, Spec. Hep. 3: 529. 1909. 



Mastigobryum hariotii Stephani in Herzog, Biblioth. Bot. 87: 224. /. 164, de. 1916. 

 Bazzania portoricensis var. pycnodictyon Herzog, Rev. Bryol. Lichenol. 11: 19. 1938. 



Plants large, in deep tufts or mats, olive-green to brownish-green, pigmented 

 with brown ; stems to 10 cm or more long, with leaves to 4.5 mm broad, prostrate 

 to suberect ; lateral branches frequent, mostly more than 5 mm apart, diverging 

 at a wide angle; flagelliform branches frequent. Line of leaf insertion curved 

 in its upper part, the dorsal margin recurved forming a short hook. Leaves 

 distant to imbricate, plane to deflexed, asymmetrically ovate, oblong on robust 

 plants, spreading, often becoming a little falcate, 1.5-2.6 mm long, 0.8-1 mm 

 broad at the base, narrowed a little to the transversely truncate, unequally tri- 

 dentate apex; teeth large, acute, two to eight cells long and broad, occasionally 

 obscure, the sinuses deep-acute to lunulate, the margins entire; leaf-cells tending 

 to be in rows, thin-walled, the lumina angular-rounded, the trigones small, con- 

 spicuous, the cuticle verruculose ; cells of the apical region 20 X 20 jjl. Under- 

 leaves distant to imbricate, subquadrate to elongate, much broader than the 

 stem, 0.8-1 mm long, 0.65-1 mm wide, the lateral margins convex, the base 

 cordate, the apex usually 2— 4-lobed, the lobes broad, rounded. Female branches 

 occasional, the bracts and bracteoles of the innermost series ovate, divided to 

 one-third or one-fourth of their length into three or four long segments, the 

 margins serrulate to short-ciliate or dentate. Perianth long, the mouth short- 

 ciliate. Male branches and sporophyte not seen. Fig. 17, a-g. 



Habitat : On logs, tree bases and branches in wooded areas. 

 CUBA: Oriente, Shafer 9116 (YU, NY). 



JAMAICA: Sir John's Peak, Harris 11, 135a (NY); Morce's Gap, Evans 41, 44, 390 

 (YU), Bengry (IJ) ; summit of Sugar Loaf Peak, M. Farr 1092 (IJ) ; s.l., Webster (NY). 



PUERTO RICO: near Adjuntas, Sintenis H33, H87 (G), Sintenis 92 (as B. wrightii) 

 (NY) ; Alto de la Bandera, Britton, # Marble 2175 (NY) ; Canovanas, Pagan 291 (NY) ; 

 El Yunque, Evans 11, 66, 132 (YU, NY), P. R. College Agr. 2792 (NY), Steere 4038, 4309, 

 4057, 4208, 4297; Luquillo Mountains, E. G. Britton 7753 (NY), Sintenis H18, E33 (G) ; 

 Mt. Britton, Jones 10976 (FH) ; Sierra Naguabo, Shafer a, 3306, 3455, 3729 (NY), E. G. 

 Britton # Hess 2291 (NY), Sintenis H3, H123 (G) ; s.l., Schwanecke, type of M. portoricense 

 (NY); s.l., Schwanecke 23, 728, 1161 (G). 



ST. KITTS: Mt. Misery, Brentel (type NY, isotype G), Britton $ Cowell 783 (NY), 

 without collector 275 (G). 



GUADELOUPE: Morne Hirondelle, Buss 282 (NY); s.l., Husnot, type of M. sylvaticum 

 Gottsche (FH) ; s.l., I'Herminier (as M. sylvaticum) (G) ; s.l., VHerminier, 114 (G). 



DOMINICA: Sylva ad Laudat, Eggers (G) ; s.l., Eggers (G) ; Morne Anglais, Elliott 

 4878 (BM) ; Morne Diablotin, Elliott 690c p.p., 2146, 2212 (BM) • Morne Trois Pitons, Elliott 

 2279, 2315 (BM) : summit of Coulisbon, Elliott 1894a (BM) ; Roseau Lake, Elliott 1167 

 (BM) s.l., Elliott 1108, 1611, 1643 (G). 



DOMINICAN REPUBLIC: Pacificador, Abby 2061a, 2063, 2126 (YU). 



MARTINIQUE: Mt. PelSe, Buss 126, 127, 347 (NY) ; s.l., Buss 205 (G). 



TRINIDAD: Mt. Aripo, Greig-Smith 1450 (IJ). 



MEXICO: Oaxaca, Liebmann 255 a, b, mixed with M. taleanum (FH, G), Sharp 5702 

 (TENN). 



GUATEMALA: Nebaj, Sharp 2529 (TENN) ; Steyermark 38831 (F) ; Vulcan de Pacaya, 

 Standley 80537 (F). 



