166 



MEMOIRS OK THE NEW YORK BOTANICAL GARDEN 



VOL. 11 



This highly variable species may be recognized by the hook-form insertion 

 of the dorsal base of the leaf, the conspicuous but rarely toothed ventral auricle : 

 the large, subquadrate underleaves which are often conspicuously four-lobed, 

 above and cordate at the base with a spine or tooth from one or both of the 

 auricles. 



48. Bazzania acanthostipa Spruce, Trans. Proe. Bot. Soc. Edinb. 15: 381. 1885. 



Mastigobryum acanthostipum Stepliani, Spec. Hep. 3: 499. 1908. 



Plants large, light brown, greenish in the younger portions; stems robust, to 

 14 cm in length, with leaves to 5 mm broad; lateral brandies occasional, diverg- 

 ing at a wide angle ; flagelliform branches frequent, long, the scale-leaves small. 

 Leaves densely imbricate, deflexed when dry, asymmetrically ovate, falcate, 2.5- 

 3.5 mm long, 2 mm broad at the base, narrowed to the mostly transversely trun- 

 cate, more or less equally tridentate apex, the dorsal margin arched from a 

 cordate base, the ventral auricle very large, undulate. Lobed, toothed, often 

 appendiculate ; teeth spreading, long, broadly triangular, acute, eight to fifteen 

 cells long, four to six cells broad at the base, the sinuses deep, lunulate, the 

 margins entire, repand ; leaf -cells thin-walled but the wall obscured by the 

 enlarged trigones, the lumina stellate, the trigones very large, with convex sides, 

 the cuticle faintly verrueulose; cells of the apical portion 20 X 20 p.. Under- 

 leaves imbricate, subquadrate, averaging 1.2 mm long and broad, the has" eor- 

 date-auriculate, the auricles very large, overlapping, undulate, serrate, lobed. 

 toothed, or appendiculate, the lateral margins coarsely toothed or lobed, and 

 with one or more broad to narrow, apiculate, widely spreading teeth, the apical 

 margin convex, undulate, sometimes four-lobed. Female branches occasional, the 

 bracts of the intermediate and innermost series long-ovate, divided to one-fourth 

 of their length into three ciliate and serrate laciniae, the lateral margins serrate 

 to long-ciliate, the cells to 64 p. long, with thickened walls. Perianth to 6 mm 

 long the mouth eiliate-laciniate, the cells avera<rin«- 32 p. long, thick-walled. Male 

 branches and sporophyte not seen. Fig. 48, a-f. 



Habitat : In deep ascending tufts on rocks and trees in moist places in the 

 mountains. 



COLOMBIA: si, A. Wallace (NT); Rio Apoporis, Schultes f Cabrera 11958 (FHi. 

 PERU: Mt. Campana, Spruce, Hep. Sprue, (isotypes G, NT). 

 BOLIVIA: Mapiri, Rusby 3027 p.p. (NY). 



49. Bazzania canelensis (Stephani) Fulford, Bazzania Cent. S. Am. 152. f. 55. 



1946. 



Bazzania vincentina var. submutica Spruce, Trans. Proc. Bot. Soc. Edinb. 15: 378. 1885. 

 Mastigobryum canelense Stephani, Spec. Hep. 3: 518. 1909. 

 Bazzania vincentina var. subetlentata Spruce ma., Hep. Spree. 



Plants large, olive-green to yellow-brown, becoming more deeply pigmented; 

 stems large, to 10 cm or more in length, with leaves to .1 mm broad, ascending 

 to erect; lateral branchs rare, diverging at a wide angle; flagelliform branches 

 frequent, short, with tiny scale-leaves. Leaves approximate to imbricate, plane, 

 becoming a little deflexed when dry, asymmetrically ovate to oblong, straight. 

 2.5-3 mm long, 1.5 mm broad at the base, narrowed a little to the broadly 

 rounded to faintly tridentate apex, the dorsal margin strongly arched from a 



