148 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[VOL. 11 



33. Bazzania schwaneckiana (Hampe & Gottsche) Trevisan, Mem. 1st. Lomb. 



13: 414. 1877. 



Mastigobryum schwaneckianum Hampe & Gottsche, Linnaea 25: 345. 1852. 



Plants scattered or growing in depressed mats, sometimes without leaves, 

 mostly of medium size, light-green to olive-green, becoming brownish ; stems to 

 5 cm long, with leaves mostly 1.5-2.5 mm wide, prostrate ; lateral branches mostly 

 5 mm or more apart, diverging at a wide angle ; flagelliform branches frequent, 

 long, occasionally branched. Leaves approximate to imbricate, spreading, plane 

 or nearly so, becoming deflexed on drying, asymmetrically long-ovate, mostly 

 1.2 mm long, 0.56 mm wide at the base, scarcely narrowed to the transversely 

 truncate, rounded-entire to faintly two-three-toothed apex; leaf -cells of the 

 marginal one or two rows often forming a border, uniformly thick-walled, mostly 

 16 X 10 ft, the cells of the apical region 20-24 n, uniformly thin-walled, the 

 trigones very small, the cuticle verruculose. Underleaves subimbricate, squar- 

 rose, with a hyaline border, connate by several cells with one leaf, quadrate to 

 quadrate-orbicular, 0.34-0.38 mm long, 0.32-0.38 mm wide, the apex undulate to 

 two- or four-toothed or -lobed, the hyaline border complete, two to four cells 

 wide, broadest across the top, the cells similar to those of the chlorophyllose area 

 but with thinner walls. Sexual branches and sporophyte not seen. Fig. 33, a-d. 



Habitat : In wooded areas in depressed mats over logs and on shaded banks. 



PUERTO RICO: a.l., Schwanecke, Gottsche # Rabenhorst, Hep. Eur. no. 608 (isotypes 

 XV, YU); near Adjuntas, E. G. Britton 4r Marble 2175 (NY); Canovanas, Pagan 274 

 (F) ; El Yunque, Evans 166, 185 (Y, NY), Steere 4649, 4676, 4681, 4819, 6078 (Hb. Fulford) ; 

 Luquillo Mountains, Heller 4646, 4653, 4760 (MO) ; Sintenis 12 (G) ; Mt. Britton, Steere 4224, 

 (Hb. Fulford) ; N. Guava purchase unit, Steere 4819, 4831, (HB. Fulford) ; Orocovis, Pagan 

 22, 23 (F) ; Rio de Maricao, E. G. Britton 2503 (NY) ; La Torrecilla, Steere 46.51 (Hb. Ful- 

 ford) ; s.l., Schwanecke 19 (G). 



GUADELOUPE: Pointe Noire, Buss 43, 57 (NY) ; s.l., VHerminier (FH, NY, YU) ; s.l., 

 VHermimier 10, 11, 12, 32, 55 (G) ; without locality or collector ex Hb. Barbey-Boissier (as 

 M. venezuelanum var. /3, Molenb.) (G). 



DOMINICA: Four Hand, Fishlock 12a (NY); Mt. Diablotin, Elliott 2123, 2174 (BM). 



MARTINIQUE: Calabasse; Morne Paillasse, Buss 38, 369 (NY); s.l., Buss 38 (G). 



34. Bazzania pycnophylla (T. Taylor) Trevisan, Mem. 1st. Lomb. 13 : 414. 1877. 



Mastigobryum pycnophyllum T. Taylor, London Jour. Bot. 5: 375. 1846. 



Plants light green to olive-green, becoming tinged with brown ; stems slender, 

 with leaves to 3 mm broad, prostrate; lateral branches 0.5 cm or more apart, 



Fig. 32. Bazzania fendleri. 32 a. Stem, ventral view, X 15. 32 b. Leaf. 32 e. Under- 

 let. 32 d. Leaf-cell, X 400. 



Fig. 33. B. schwaneckiana. 33 a. Stem, ventral view, X 30. 33 b. Apices of leaves, 

 X 30. 33 c. Leaf -cell, X 400. 33 d. Attachment of an underleaf to the stem and a leaf, X 45; 

 H, hyaline margin of the underleaf. 



Fig. 34. B. pycnophylla. 34 a. Stem, ventral view, X 30. 34 b. Apices of leaves. 34 c. 

 Leaf -cell, X 350. 34 d. Cells from the upper part of an underleaf, X 260; H, hyaline border. 



Fig. 35. B. eggersiana. 35 a. Stem, ventral view, X 15. 35 b. Apices of leaves. 35 c. 

 Leaf -cell, X 350. 35 d. Cells from the upper part of an underleaf, X 260 ; H, hyaline border. 



Fig. 36. B. armatistipula. 36 a. Stem, ventral view, X 30. 36 b. Apices of leaves. 36 c. 

 Leaf -cell, X 350. 36 d. Underleaf on the stem, X 30 ; C, chlorophyllose area, H, hyaline bor- 

 der. 86 e. Cells of the margin of an underleaf, X 2(50 ; n, hyaline border. 



