148 — LEJEUNEAE OF THE UNITED STATES AND CANADA 
innovating on one side, the innovation simple and sterile ; bracts 3 
complicate, unequally bifid, the lobe widely spreading, ovate to ob- 
ovate, rounded at apex, 0.55 mm. long, 0.3 mm. wide, lobule with 
a narrowly rhomboidal base connate with lobe, running out into a | 
subulate, acuminate point ending in a row of three or more cells, 
0.25 mm. long, base 0.05 mm. wide; bracteole oblong to obovate | 
from a narrow base, 0.35 mm. long, 0.17 mm. wide, bifid one third 2 
or less with triangular, acute, contiguous lobes and narrow sinus, _ 
perianth about half exserted, obovoid, somewhat compressed, 0.5 
mm. long, 0.35 mm. wide, narrowed toward base, broad and trun- 
cate above and with a very short, broad beak, antical face plane or 
with a very indistinct, low keel near apex, postical keel about half 
as long as perianth, broad, obtusely two-angled, lateral keels blunt, 
keels more or less roughened from projecting cells: 5 spike occu- — 
pying a short branch, globose, bracts in about two pairs, inflated, — 
keel strongly arched, shortly and subequally bifid with rounded | 
divisions ; bracteole at base of spike small, shortly bifid with acute — | 
divisions and narrow sinus. 
Type-locality, Dominica ( Elliott). ۰ 
On bark or on the ground. Indian River and Cedar Keys, a 
Florida (Herb: Austin). Also known from Cuba (Underwood). 
C. pililoba presents so remarkable a character in its filiform 
lobule that there is little danger of confusing it with any of our a 
other Lejeuneae. Among tropical species Zejeunea (En-Lejeunea) —— 
setiloba Spruce * is said to have a similar but shorter lobule. E 
Through the kindness of M. B. Slater, the writer has had the — 
privilege of examining the type-material of this species from the 
Spruce herbarium. These specimens show that the filiform con- 
dition of the lobule is by no means a constant feature. On some 
of the stems one occasionally finds a small, broadly ovate, inflated 
lobule of the ordinary type with the apex consisting of one or tw0 —. 
projecting cells, and there are all gradations between such a lobule “ 
and the form described by Spruce. These specimens in fact give — | 
‚one the impression that the filiform lobule of L. setiloba is really an — 
abnormal character. Aside from these differences in the lobule, the 
underleaves of L, setiloba are broader and usually less deeply cleft | 
than in C. pililoba and are occasionally angular-unidentate on the =. 
sides. The perianth also is obovoid and scarcely compressed, and — 
its sharp antical keel indicates that the species is a true Lejeune. — 
A tit eia — AS 
* Hep. Amaz. et And. 281. 1884. 
