~ 
554 Evans: HEPpATICAE OF PuERTO RICO 
which has been collected once in Puerto Rico, may be described as 
follows : 
Caudalejeunea Lehmanniana (Gottsche) 
Lejeunea Lehmanniana Gottsche; G. L. & N. Syn. Hep. 325. 
1845. 
Lejeunea Crescentiae Lindenb. & Gottsche, /.¢. 752. 1847. 
Lejeunea (Lopho-Lejeunea) harpaphylla Spruce, Hep. Amaz. et 
And. 123. 1884. 
Phragmicoma Haenkeana Schiffn. Bot. Centralbl. 27: pl. 7. /. 3: 
1886. 
Lejeunea (Mastigolejeunea) Haenkeana Steph. Hedwigia 28: 257. 
1889. 
gah (Cauda-Lejeunea) Lehmanniana Steph. /. c. 29: 18. 
1890 
Lejeunea (Cauda-Lejeunea) Leiboldii Steph. /.¢. 19. 1890 (nomen 
nudum). 
Lejeunea (Cauda-Lejeunea) harpaphylla Steph. /. c. 19. 1890. 
Lejeunea (Cauda-Lejeunea) Crescentiae Steph. /. c. 19. 1890. 
Caudalceunea harpaphylla Schiffn. ; Engler & Prantl, Nat. Pflanzen- 
fam. 1°: 129. 1895. 
Caudalejeunea Crescentiae Schiffn. /. c. 129. 1895. 
Caudalejeunea Haenkeana Schiffn. 1. c. 129. 1895. 
Caudalejeunea Leiboldii Steph. Hedwigia 34: 233. 1895. 
Bright- or pale-green, not glossy, scattered or growing in loose 
tufts : stems prostrate, 0.15 mm. in diameter, irregularly pinnate, 
the branches obliquely spreading, simple or sparingly subdivided, 
similar to the stem but often ascending and free from the sub- 
stratum: leaves loosely imbricated, the lobe plane or somewhat 
convex, obliquely to widely spreading, more or less falcate, 
oblong-ovate, I-1.3 mm. long, 0.6-0.7 mm. wide, arching across 
or a little beyond the axis, rounded at the base, antical margin 
outwardly curved to the apex, postical margin straight or a little 
curved, forming a continuous line or a very obtuse angle with the 
slightly arched keel, apex varying from rounded to acute, margin 
usually entire, sometimes irregularly angular-dentate near the 
apex ; lobule inflated throughout, ovate-oblong in outline, 0.35 
mm. long, 0.17 mm. wide, free margin usually revolute and 
appressed to the lobe throughout a part. of its length, crenulate 
near base, mostly bidentate in outer part, the apical tooth being 
acute and curved, often three or four cells long and two or three 
