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MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



VOL. 11 



quent. Line of leaf insertion curved in the upper half. Leaves imbricate, falcate, 

 becoming deflexed on drying, elongate, subrectangular to asymmetrically ovate, 

 1.5-2.0 mm long, 0.5-0.8 mm broad at the base, little narrowed to the tridentate 

 apex; teeth equal to unequal, three to six cells broad at the base, three to six 

 cells high, very sharp by one elongated cell, the sinuses rather broad, rounded; 

 leaf-cells thin-walled with very large knot-like trigones with convex sides, the 

 lumina elogate to angular-rounded, the cuticle faintly verruculose; cells of the 

 apical portion 27-36 X 24-27 /i, those of the median and basal portions larger. 

 Underleaves imbricate, quadrate to rectangular in outline, 0.48-0.55 mm long 

 and wide, the lateral margins straight or undulate, entire, the apex truncate, the 

 margin with shallow lobes and teeth and usually an incurved tooth at each end. 

 Female branches occasional, the bracts (immature) crenate, laciniate. Male 

 branches, perianths and sporophyte not seen. Fig. 26, a-d. 



Habitat : In mats or tufts, on logs at higher altitudes. 



JAMAICA: summit of Cuna Cuna Mountain, M. Farr 1378 (type 13), M. Farr, 138!) p.p. 

 (IJ) ; summit of John Crow Peak, M, Farr 984 (13) ; sw of Eeclesdown, M. Farr 1149 (13) ; 

 Blue Mountain Peak, 6500-7325 ft, Underwood (NY). 



This species appears to be restricted to the tops of peaks in Jamaica. The 

 plants are large and combine characteristics of several species. They are similar 

 to B. latidens in general appearance, but the leaf-cells of that species are smaller, 

 only 20-24 ft, and the apical margins of the underleaves are rounded-entire or 

 faintly undulate. The long falcate leaves suggest leaves of B. longa, but here 

 again, the apices of the underleaves are rounded-entire or only undulate. The 

 leaf-cells of the two species are quite similar. While the underleaves are similar 

 to those of B. glaziovn, the leaf-cells of the latter are only 20-24 n in diameter. 



27. Bazzania elongata Fulford, Bull. Torrey Club 86: 337. /. i7-53. 1959. 



Plants large to robust, deep yellowish-brown to dark brown; stems stout, 

 6-10 cm or more long, with leaves to 4 mm broad; lateral branches distant, 

 diverging at a wide angle; flagelliform branches frequent. Line of leaf inser- 

 tion curved in the upper half. Leaves imbricate, more or less spreading-falcate, 

 deflexed and often connivent when dry, asymmetrically ovate, elongate, 1.5-2.5 

 mm long, 0.6-0.8 mm broad at the base, narrowing conspicuously to the obliquely 

 truncate, 3- or 2-toothed apex; teeth large, mostly lonjz-, the acroscopic tooth 

 longest, two to seven cells broad at the base, three to ten cells long, narrow, acute, 

 often with an uniseriate tip of two to six cells, the sinuses deep, narrow, acute, 

 the margins straight or uneven ; leaf-cells thin-walled, with very large, rounded 

 trigones and secondary thickenings in the pits, the lumina angular-rounded to 

 stellate, the cuticle coarsely verruculose ; cells of the apical portion 36—45 X 27 /x. 

 Underleaves imbricate, very long, rectangular in outline, at least twice as long 

 as broad, 1.0-1.5 mm long X 0.5 mm broad, the lateral margins entire and 

 parallel, the apex truncate, mostly deeply 4-lobed, sometimes one lobe longer 

 and acuminate. Female branches frequent, the bracts and bracteoles ovate, di- 

 vided to one-fourth their length or less into two or three short laciniae. with 

 crenate to short-ciliate margins. Perianth to 5 mm long, the mouth contracted, 

 crenate. Fig. 27, a-d. 



Habitat: In mats or tufts, on trunks of living trees in Bonnetia forest. 



VENEZUELA: Estado Bolivar, Chimanta Massif, 2000-2100 n>, Steyermark 75.78? (tvpe 

 NY). 



