L962] 



LEAFY SEPATICAE OP LATIN AMERICA PAKT I 



1 53 



Clement 343 (NY) ; Sierra Nipe, near Woodfred, 450-550 m, Shafer 3344, 3434 (NY). 

 JAMAICA: summit of Bull Head, Underwood 3390 (NY). 

 PUERTO RICO: Maricao, Pagan 216a, 237, 251 (Hb. Fulford). 



38. Bazzania peruviana (C. G. Nees) Trevisaiij Mem. 1st, Lomb. 13: 414. 1877. 



Mastigobryum peruvianum C. Q. Nees in G. L. & N. Syn. Hep. 220. 1845. 

 Mastigobryum lechleri Stephani, Hedwigia 25: 134. pi. 6. 1886. 



Mastigobryum peruvianum var. /3 minimum Gottsche & Schiffner in Schiffner, Lebermoose. 



Porschungsreise S.M.S. "Gazelle" 4: 17. pi. 4. f. 17, 18. 1888. 

 Mastigobryum cerinum Stephani, Spec. Hep. 3: 457. 1908. 



Plants of medium size to large (rarely small, pale and delicate), in dark 

 green to brownish tufts or mats; stems 5 cm or more in length, with leaves to 

 3.5 mm broad; lateral branches mostly 5 mm apart diverging at an acute angle; 

 flagelliform branches frequent. Leaves imbricate, plane, long, ascendent and 

 becoming deeurved to falcate from a broad base on long robust stems, less 

 strongly falcate to ovate, spreading on smaller stems, 1.5-2.0 mm long, 1 mm 

 broad at the base, narrowed to the transversely truncate, sharply tridentate 

 apex ; teeth variable, mostly slender, sharply acute, three to eight cells long, 

 two to four cells broad, the sinuses mostly deeply lunulate, the margins serrulate 

 to dentate; leaf-cells thin-walled, the trigones tiny to small, the lumina rounded, 

 the cuticle verruculose ; cells of the apical region averaging 20-24 [*. Underleaves 

 huge, imbricate, with a hyaline border above, often longer than broad, con- 

 spicuously connate with a pair of leaves, often becoming recurved in the upper 

 half, the apex more or less incised and lobed and serrulate to spinose-dentate, 

 the hyaline border four to eight cells broad (sometimes to half the leaf), the 

 cells thin-walled, the chlorophyllose cells with thicker walls and small trigones. 

 Female inflorescences occasional, the bracts and bracteoles broadly ovate, the 

 bracts of the innermost series divided to one-third of their length into two or 

 three laciniae, the margins coarsely incised and toothed. Perianth long, the 

 mouth long-ciliate to laeiniate. Male branches and sporophytes not seen. Fig. 

 38, a-k. 



Habitat : Over soil, rocks and the bases and trunks of trees, in depressed 

 mats or deep ascending tufts. 



BRAZIL: S. Catarina, Reitz 2.354, poor (HBR). 



PERU: without locality or collector, Hb. Gottsche (type FH) ; s.l., Jameson (NY). 



CHILE: Valdivia, Hahn 2 [2a] (G) ; the same, ex. Hb. Jack (FH, G) ; Valdivia, 

 Lfichler, type of M. lechleri (FH, G) ; Valdivia: Arique, Lechler, Plantae chil. 681a (G) ; 

 the same, 681a (as M. novae-hollandiae) (G) ; Port Montt, Bro. Claude-Joseph 3216 (YU) ; 

 Corral, Thaxter 142, 149, 7913 (YU, FH), 20, 98 (MICH); Curico, Wollemeyer 279a (FH) ; 

 s.l., H. C. Lorenz (NY) ; s.l., Cuming (G) ; s.l., Dusen 355 (as M. cerinum) (G) ; s.l., 



Fig. 37. Bazzania cubevMs. 37 a. Stem, ventral view. X "0. 37 h. Apices of leaves. 37 c. 

 Leaf-cell, X 350. 37 d. Undcrleaf on the stem, X 30. 37 e. Cells of t!ic upper port of an 

 underleaf, X 260. 



Fig. 38. B. peruviana. 38 a. Stem, ventral view, X 15- 38 b. Another stem, ventral 

 view, X 20. 38 c. Apices of leaves, X 30. 38 d. Leaf -cell, X 350. 38 e. Underleaf, X30; 

 H, hyaline border. 38 f. Cells of the upper part of an underleaf, X 310; H, hyaline border. 

 38 g, h. Female bracts of the outer (g) and intermediate (h) series, X 40. 38 i. Female 

 bract of the innermost series, X 40. 38 j. Portion of the perianth-mouth. 38 k. One of the 

 cilia of the perianth-mouth, X 90. 



Fig. 39. B. sTcottsbergii. 39 a. Stem, ventral view, X 15- 39 b. Leaf -cell, X 350. 39 c. 

 Cells of the upper part of an underleaf, where no hyaline cells were present, X 360. 



