82 BRYACE^E. [Flssldens. 



Var. CSBSpitans, Schimp. Plants loosely cespitose, much 

 longer, branching by innovations ; lamina narrow, the borders 

 and costa disappearing below the minutely serrulate apex. 



Hab. Shaded ground ; often covering the earth of flower pots in con- 

 servatories; the variety at News River, White Mountains (Rev. D, D. 

 Allen). 



3. P. incurvus, Schwaegr. Plants very slender and small : 

 leaves linear or oblong-lanceolate, apiculate, with a very narrow 

 border vanishing toward the apex ; costa terminating below the 

 obscurely erose apex or excuruent in a sharp j^oint : capsule 

 horizontal or oblique, rarely erect, small, oval. — Su])j»l. ii. 5, 

 t. 49 ; Bryol. Eur. t. 99 ; Braithw. 1. c. 69, t. 10, C. Dicranurti 

 incurvum, Web. & Mohr. 



Hab. Shaded rocks and on sandstone in streams ; not rare. 



According to Schimper the species is not distinctly defined. The only 

 essential character is the terminal position of the male flowers. Austin 

 asserted that he had found a form of it with axillary male flowers, which 

 seems to indicate that it is a mere variety of F. hryoides. 



4. F. inconstans, Schimp. Similar to F. incurmis in size 

 and aspect; plants generally simple: leaves 8 to 16 pairs, 

 linear-lanceolate, acute ; borders narrow, hyaline, continuous to 

 near the slightly serrulate apex ; dorsal wing entire, narrowed 

 to the base and there confluent with the pellucid costa, which 

 ends below the apex : flowers synoecious or monoecious, 

 antheridia and archegonia numerous and terminal, without para- 

 physes, or the male buds axillary in the lower leaves of the 

 fruit-bearing plants : calyptra split to near the apex : capsule 

 cylindric-oval, erect ; lid conical, rostellate, nearly erect. — 

 Syn. Muse. (ed. 2), 114. F. si/noicus, Sulliv. Mosses of U. 

 States, 103. 



Hab. San Marcos, Texas {Wright). 



The author remai-ks that the species is very inconstant in its mode of 

 fructification, which is sometimes terminal and cladogenous, sometimes 

 axillary, and that the capsule is smaller than in F. incurvus, of which it 

 may be a variety. In the Texan specimens we have generally found the 

 flowers terminal and syna'cious, but sometimes with axillary buds near 

 the base of the fertile plants. The stems are stronger, the leaves shorter 

 and broader, and the areolation smaller than in F. incurvus. It is re- 

 ferred to F. hryoides by Braithwaite. 



5. P. limbatus, Sulliv. Plants small : leaves 8 to 10 pairs, 

 oblong, acuminate, with a thick costa ending below the apex 

 and a pellucid border gradually enlarging from near the apex to 



