Fissidens.] BRYACE^. 83 



the base of the auricles ; areolation minute-subquadrate below, 

 loose and angularly rounded in the lamina : flowers monoecious, 

 the male gemmiform, axillary : cajDSule unequally oval, sub- 

 cernuous ; teeth split to near the base, much iuflexed. — Pacif. 

 R. Rep. iv. 185, t. 1. 



Had. Near San Francisco (Bigelow). 



Comparable to F. brijokles, from which it differs in the cernuous cap- 

 sule, the deeply split teeth, and especially the pellucid entire margin, 

 which becomes very broad at the base of the auricles. 



-1- -f- Plants of larger size. 



6. F. crassipes, Wils. Plants 2 to 4 c. m. long: leaves 

 close, soft, liugulate-acuminate, unequally margined, the border 

 enlarged below to the middle of the auricles, disappearing to- 

 ward the base and below the slightly crenulate apex ; costa 

 thick, subpercurrent : flowers terminal; male buds on basilar 

 branchlets : capsule nearly erect, oblong-oval, strongly con- 

 stricted below the orifice when dry ; lid short-beaked ; pedicel 

 thick, reddish toward the base, yellowish above ; segments of 

 the teeth distinctly papillose ; annulus minute. — Bruch & 

 Schimp. Bryol. Eur. 1. 100. F. incurvus, var. crassipes, Schimp. 

 F. viridulus, var. major, Wils. Bryol. Brit. 303, t. 53, R. 



Hab. On wet rocks ; not rare in Europe. 



The species is admitted on the authority of Jaeger's Fissidentacece, n. 

 77. We have seen no American specimen of it. 



7. F. Floridanus, Lesq. & James. Plants of about the 

 same size as in the preceding, branching from the base, brown 

 in the lower part, bright green above : leaves densely crowded, 

 the upper slightly scythe-shaped, plicate to above the middle, 

 minutely erose-denticulate at the apex, surrounded below by a 

 somewhat large jaale border ; costa vanishing below the aj^ex ; 

 areolation minute, hexagonal, narrower and less distinct in the 

 lamina, which is prolonged on the back of the auricles and 

 abruptly cut at base : flowers monoecious ; the male terminal on 

 somewhat long lateral branches ; the perichfetium on a short 

 radiculose branch from the middle of the stem, bearing one 

 or rarely two fruits ; perichaetial leaves loosely areolate, with 

 broad auricles narrowly alate to the middle, abruptly narrowed 

 above into a short lamina : capsule oblong-ovate, cernuous, on a 

 thick reddish pedicel ; lid large, long-beaked. — Proc. Am 

 Acad. xiv. 137. 



Hab. Florida (Gai'ber). 



