Fahro)i{a. MUSCI. 405 



2. F. Neo-Mexicana, Sulliv. ^ Losfj. Stem 8 to 12 inches long:, the numerous 

 l)i'anches and l)ranclilots elongated, naked below, rather rigid : leaves dull yellowish 

 green, oblongdanceolate, more or less folded, areolation linear; perich.-etial leaves 

 obovate-oblong, abruptly long-cuspidate : capsule ovate-oblong : peristome red ; teeth 

 20-jointed ; inner cone perfect. — Muse. Am. Dor. E.xsicc. n. 224 ; Sulliv. Icon. Muse. 

 Suppl. 7G, t. 57. F. antlpi/retica, van, Sulliv. ct Lesq. 1. c. 2 ed. n. 334. F. Mer- 

 cediana, Lesq. ^lem. Calif. Acad. i. 28. 



On rocks in Merced River (Bolander) ; New Mexico (ll'ri(jlU) ; Colorado, ITaU. 



F. Lescuimi, Sulliv., an eastern species, has lieen found in Oregon, Ilafl. It is soft and flaccid, 

 with tlie bright green leaves long-lanceolate and concave, the cajisule short-cylindric, and the 

 peristome granulose-papillose : teeth 20 - 25-jointed and the cilia not connected below. 



45. DICHELYMA, Myrin. 



Floating perennials, with slender stems attached only at base, remotely and sub- 

 distichously branched. Leaves 3-ranke(l, elongated, narrow, falcate and folded, with 

 slender costa, more or less serrulate ; areolation rhombic. Flowers dioecious, bud- 

 like, lateral : perich;utium very long, the inner leaves sheathing, nerveless. Calyptra 

 dimidiate or cucullate. Capsule pedicellate, immersed or more or less exserted, oval 

 or oblong ; operculum conic-rostrate ; annidus none. Peristome double, nearly as 

 in Fontiiialis ; teeth less hygroscopic, dehiscing along the medial line; cilia longer 

 than the teeth, connected by crossbars the whole length or only at the apex or 

 wholly free. 



The six species are all North American, two of them also European. It is doubtful whether 

 any species has been collected in (."alifornia. Sterile sjieciincns of a moss found in King's and 

 Kawcah Rivers {Brnccr), ami on Mount Dana and in swamps near Mendocino City {Bolnnder), 

 which are refeiTcd by Les(iuereux (Mj'm. Calif. Acad. i. 28) to D. Swartii, Lindb., were considered 

 by Austin to be a variety of Hijpnuvi exanintJatam. Schimper states (Syn. Muse. Eur. 2 ed. 

 S.'JO) that D. Swnrzii is probaldy Ilypnuvi fluilans. 



D. FAi.CATU.M, Myrin. Leaves crowded, falcatc-secund, lanceolate-subulate, the costn cea.sing 

 at the apex or somewhat excurrent, nearly entire; the inner pericha-tial leaves very long, lorate: 

 calyptra cucullate, clasping the i)cdicel : capsule oblong on a slender exserted pedicel, ferruginous; 

 operculum as long or longer, acutely acuminate-conic : peristome bright red, tlie inner nuich ex- 

 ceeding the outer, tessellate throughout. — lirueh k Schimp. Brytd. Eur. t. 43.^. Foittinalisfnl- 

 cntn, lledw. Muse. Fiond. ill, t. 24. D. cylivdricarpam, Austin, Coult. Dot. Gazette, ii. 111. 

 Columbia River, Oregon, //(///. 



I). ITNCINATUM, Mittcu. More slender and somewhat more pinnate, the falcate-seciuid long- 

 attenuate lanceolate leaves terminated by the excuri;ent nerve, which is .smooth above the serru- 

 late margins and denticulate only at the apex ; ])ericli;etial leaves not twisted : calyptra not ad- 

 herent to the pedicel : inner cone jierfect, exceeding the teeth about one-fifth of their length. — 

 Journ. Linn. Soc. viii. 44, t. 8. Fort Colville, Washington Territory, Lyall. 



46. FABRONIA, Raddi. 



Very small slender creeping perennials, on the trunks of trees or on rocks ; 

 branches erect, somewhat fascicled. Leaves bright or pale green, very thin, shining, 

 ovate-lanceolate, fdiformly acuminate, dentate or ciliate, scarcely costate ; areolation 

 very loose, rhombic, at the base quadrate. Flowers monoecious, lateral, bud-like. 

 Calyptra cucullate, smooth. Capsule ovate-pyriform or subspherical, erect on a 

 rather short pedicel, of loose undulate-quadrate cells, which are transversely rectan- 

 gular at the mouth ; operculum convex-conic or rostellate ; annulus none. Peristome 

 single, of Ifi flat linear-lanceolate teeth, remotely jointed. 



A genus of about 20 very widely scattered species. Of the five North American species tlio 

 following is the (udy one that is also European. 



1. F. pusilla, IJaddi. Densely cespitose, the erect sim]ile branches a line or two 

 high : leaves yellowish green, spreading, irregularly laciniate-ciliate to below the 



