270 BRYACE^. [Fontinalis. 



Hab. Mountain rivulets of New Mexico {Wi'igJd), sterile specimens 

 upon -which the species Avas founded ; Merced Eiver, California (Bolander), 

 fertile; Eocky Mountains, also fertile (E. Hall). 



4. F. Dalecarlica, Bruch & Schimp. Plants fasciculately 

 ramose, naked toward the base, dark or dirty green : leaves 

 closely imbricate, narrowly oblong-lanceolate, acuminate, glossy 

 concave and incurved on the borders ; perichaetial leaves longer- 

 acuminate, the inner surpassing the top of the lid, recurved at 

 the apex : teeth distantly articulate, lacunose between the 

 articulations ; cilia irregularly latticed, mostly disjointed, yel- 

 lowish. — Bryol. Eur. t. 431. JF'. squamosa, Auct. ; Sulliv. 

 Mosses of U. States, 54. 



Har. Mountain rivulets; not rare, and abundantly fruiting. 



5. F. biformis, Sulliv. Plants yellowish green when 

 young, dirty green when old ; stems long, very ramose : leaves 

 loosely imbricate, indistinctly three-ranked, dimorphous, the 

 vernal large, soft, broadly ovate-lanceolate, concave, acute or 

 blunt ; the later, after the falling off of the first, much smaller 

 and narrower, convolute, rigid, covering the young branches ; 

 areolation of the vernal leaves linear in the middle, broader- 

 rhomboidal and sphagniform near the apex, that of the small 

 dectirrent basal auricles much larger, quadrate-oblong: female 

 flowers very rare, placed at the base of the stems, the male 

 long-stipitate, clustered (2 to 4) : calyptra long-conical, lacerate 

 at base : capsule oblong-oval, closely folded among the perichas- 

 tial leaves, generally erose at the apex when old ; lid conical, 

 rostrate; teeth linear-lanceolate, 18-20-articulate; cilia tessel- 

 late and united at the apex only, grani;lose and papillose like 

 the teeth. — Mosses of U. States, 54, in part, and Icon. Muse. 

 99, t. 59, GO ; Sulliv. & Lesq. Muse. Bor.-Amer. Exsicc. n. 226, 

 226"' and 226"=- F. distic/ia, var., Sulliv. Muse. AUegh. n. 191, 

 and PilotricJmm sphafjnifolinm, Muell. Syn. ii. 150 ; a vernal 

 form. F. dlsticha, var., Sulliv. 1. c, n. 192, and Pilotrichum 

 cUstichtim, Muell. 1. c, in j)art ; the summer form. 



Hab. Woodlands, in rivulets; Central Ohio. 



Besides other characters less stiiking, such as the rostrate operculum, 

 the long-stipitate male flowers, etc., the prominent peculiarity of this 

 species is the change which takes place in its foliage, the vernal leaves 

 being replaced in summer by others of a different size, form and texture. 



6. F. Nov^-Angli89, Sulliv. Somewhat like the vernal 

 forms of the last species, differing in the more rigid elastic 



