154 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



VOL. 11 



Skotlsberg 514/'08 (as M. cerinum) (G) ; Chile, Schwabc S3 (Hb. Herzogj; Chiloe Island) 

 Anderson (NY), Cunningham 1445 (NY); Isl. San Pedro, Dttxen 535, and s.n. (G ) ; Chiloe 

 Isl. ; Panguipulli, Padre Eollermayer 279 (YU, Herzog HI).); same locality, Bro. Claude- 

 Joseph 2322, 2322a (YU) ; Chiloe Isl., ex Hb. Geheeb, as M. involutum (G). 



STRAITS OF MAGELLAN: Chonos Archipelago, Darwin Bay, without collector, 44 % 

 (NY); Gray Harbor, Cunningham 147 (NY); Port Otway, Cunning lit, in k X V ) ; Oolum- 



bine Bay, West Channel, South Channel, ex Hb. Rome (as M. cerinum I (NY, G ) ; s.l., Schubert, 

 Hb. Mbnkemryer 8 (G) ; Tuesday Bay, X an maun, type of var. \i minimum ( FH ) ; the 

 same, Naumann fc'tf, tSS p.p. ( FH ) ; Desolaeion Isla., l)umn 111 ("J packets, ore as M. cerinum) 

 (G). 



PATAGONIA: Haire Molyneux, Husnot 3 (G) ; Patagonia occ. Isl. Newton, Dusen 76, 

 type of M. eonnum (G); s.l., Hatcher (VI 1 ;; Patagonia austral., Skoitsberg 6 fl p.p./'ofi (G). 



JUAN FERNANDEZ ISLANDS: several localities, Skoitsberg (Swed. Exped. Pata- 

 gonia, und Feuerl., 1907-1909), including 191, with hyaline underleaves (as M. skottsbergii) 

 (G) ; several localities, Skoitsberg (Swed. Pacific Exped. 1916-1917;, Bazzama not, 7, 10, 

 (SPA). 



This species and the next, B. skottsbergii, form a highly variable complex, the 

 plants of which vary in habit, color, size, leaf shape, cell size, thickness of cell 

 wall, teeth, degree of serration on the margin, and in the position and the char- 

 acteristics of tlie underleaves. The size and shape of the underleaves vary with 

 the size of the stem ; the upper part may be recurved or plane and the hyaline 

 margin may extend to half the leaf or it may be limited to one or a few rows 

 or even only scattered cells. 



Some of the robust plants of the early collections were given names of New 

 Zealand or Pacific species of this general habit, as M. novae-zelandiae (Mitten), 

 M. involution (Montague), M. adnexum (Lehmann & Lindenberg), and B. pla- 

 tycnemum Schwaegriehen ex Stephani, and others. 



The collections on which these reports were based have not been studied, but 

 the type or authentic material of each of the species has been examined. These 

 latter show as much variation as do the American species. It is obvious that the 

 whole complex of these South-Temperate-Antarctic taxa of the section Connatae 

 need to be studied as a group. 



39. Bazzania skottsbergii (Stephani) Fulford, Bazzania Cent. S. Am. 122. 1946. 



Mastigobrgum skottsbergii Stephani, Sv. Vet.-Akad. Handl. 46(9): 60. /. 22, i, k. 1911. 

 Mastigobryum crebrerrimum Stephani, Sv. Vet.-Akad. Handl. 46(9): 60. /. 22, c, d. 1911. 



Plants of small to medium size, light greenish-brown to dark brown ; stems 

 to 3 cm or rarely to 5 cm long, with leaves mostly 2 mm broad, prostrate to 

 ascending ; lateral branches frequent, 3-5 mm apart, diverging at an acute 

 angle; flagelliform branches frequent. Leaves imbricate, spreading to ascendent, 

 plane, with a straight ventral margin, weakly ovate, mostly 1.5 mm long, 0.8 mm 

 broad at the base, narrowed a little to the transversely truncate, tridentate apex ; 

 teeth two to four cells long, slender to spinose or obscure, the margin often 

 serrulate to dentate ; cell-walls thin but soon becoming thickened, the trigones 

 .small, the lumina angular-rounded, the cuticle often strongly verruculose ; cells 

 of the apical region mostly 24—27 /* or more X 24 /x. Underleaves approximate 

 or imbricate, broader than long and broader than the stem, connate with a pair 

 of leaves, rarely recurved above, the upper margin rarely incised, more often 

 with distant short spines or only serrate or even entire, with scattered hyaline 

 cells, or one or two rows forming a hyaline border. Sexual branches and sporo- 

 phyte not seen. Fig. 39, a-c. 



