224 THE JOURNAL OF BOTANY 



vostellura so small as hardl}^ to be seen ; the leaves are usually acute 

 or apiculate, sometimes with 2 or more teeth ; it agrees better with 

 the description of T. martinicensis than with T. dehilis. Leaves 

 1 mm. X "6 mm., perianth I'l mm. X '7 mm. 



Lejecnea cladogyka Evans in Amer. Journ. Bot. v. 134 (1918). 

 Hah. Jack in the Box Gully, Barbados, March 1896. 



Ohs. Thanks to the full description and good figures given by 

 Prof. Evans, there is little difficulty in determining this species, 

 which is recorded from Puerto Eico. The leaves are distinguished 

 by their narrow base of insertion, much smaller marginal cells, lobule 

 very small or absent, monoicous inflorescence, perianths on very short 

 branches " innovating on one side, the innovation shoii; and sterile," 

 5-winged. 



Dimensions. Stem with leaves '08 mm. broad, leaves '05 mm. x 

 •03 mm., -05 mm. X -045 mm., cells "002 mm., marginal cells '001 

 mm., lobule "012 mm. X '009 mm., underleaves '015 mm. X "012 mm., 

 bracts -05 mm. X '02 mm., lobule '025 mm. X '015 mm., bracteole 

 "03 mm. X 'OlS mm., perianth *06 mm. X "04 mm. 



Tribus II. Jungermannie.t:. 

 Eadtjla pallei^-s Nees. Hah. Mountain Lake, Dominica, Jan. 



1896. 



Isotachis EiiYTHRORniZA Besch. in Journ, de Bot. vii. 184 

 (1893). Hah. Mountain Lake, Dominica, Jan. 1896. 



Ohs. Named by Stephani Isotachis dominicensis St., n. sp., a 

 name evidently suppressed, as it does not appear in his Sp. Hep. ; 

 this is probably one of the four " species " into which the Isotachis 

 of the Souffriere of Guadeloupe had been divided, which to Dr. Spruce 

 were " unintelligible." 



Herberta Armitagei, n. sp. Dioicous, ca?spitose, largish to 

 large ; pale brown to reddish. Stems simple or rarely bifid, with 

 few fiagella, frontally compressed, oval on cross-section (20 cells x 10), 

 cortical cells about 40, with the two inner rows brown, inner cells 

 Avhite. Leaves secund, imbricate, amplexicaul, patent to erecto- 

 patent, vittate, bifid to the middle or below^ lower jDortion (disc) 

 ovate-oblong, base dilated, margin entire, involute, apex entire, or rarely 

 with a slio-ht notch, segments subulate, acuminate, vitta (elongated 

 cells) broad, 40 cells broad at the base, marginal cells 10 on each 

 side, vitta extending to apex of segments, sinus obtuse or acute. 

 Underleaves similar to the leaves, sometimes a little smaller, vitta 

 25 cells broad at the base, marginal cells 5 on each side. 



Dimensions. Stems 2 to 3 inches long, '04 mm. x '03 mm., with 

 leaves 4 mm. to 5 mm. wide ; leaves 3-5 mm. long X 1 mm. wide near 

 base, segments 2 mm., 3 mm. X '09 mm., segments -175 mm., seg- 

 ments -02 X "03 mm. wide at their base, cells of vitta -14 mm. X '03 

 mm., marginal cells "025 mm., '03 mm. 



Hah. Mountain Lake, Dominica, Jan. 1896. 



Ohs. Stephani named this species H. juniperina (Sw.) from 

 which it differs in shape of leaf, dilated base, entire margins, cell 

 structure, broader vitta ; H. jiiniperina has vitta 15 to 20 cells broad 



