154 LEJEUNEAE OF THE UNITED STATES AND CANADA 
habit it has lost its lobules, and, as the specimens have failed to 
develop perianths, it is impossible to refer them definitely. : 
The other specimen was distributed under no. 178, as Lejeune ur 
(Eu-Lej.) serpyllifolia. The plants seem to be perfectly ste t 
the lobes are crenulate on the margins and both lobules and 1 
underleaves are very small, the latter being bifid beyond the - 
middle with broad, obtuse lobes and sinus. Evidently the plant — 
is not L. cavifolia, but itis in too poor a condition to be deter- 
mined. Both of these specimens were collected in Florida. 
15. Lejeunea Americana (Lindb.) 
PLATE 20, Fics. 14-26 : 3 
Jungermannia. serpyllifolia Nils. & Hook. p. P.; Drummond, | 
Musc. Amer. St. Merid. 172. 1841. Not Dickson. ES 
Lejeunea serpyllifolia Sull. Musc. Alleg. 272. 1845. Note 
Libert. m 
Lejeunea cavifolia Aust. p. p. Hep. Bor.-Amer. 97. 1873. Not. 5, 
Lindb. 
Lejeunea serpyllifolia, var, y Americana Lindb. p. p. Acta. Soc. » 
Sci. Fenn. 10: 486. 1875. 
Lejeunea (Eu-Lejeunea) flava, subsp. albida Spruce, Hep. A 
1884. 8 
29 x 23 pat the base: 
a little larger than lobul 
so, rounded or subcord 
