408 MUSCI. NecLra. 



51. NECKERA, Hedw. 



Rather largo creeping porciniials, on trees or rocks, the secondary stems erect or 

 ascending or pendulous, pinnately branched. Leaves coniplanate, shining, scariuns 

 and scarcely costale, mostly undulate, ovate-lanceolate ; areolation minute, linear- 

 rhombic. Flowers lateral upon the secondary stems, dioecious, bud-like. Calyptra 

 cucuUate, nakeil. Capsule erect, shortly pedicellate, immersed or emergent, ovate, 

 symmetrical ; operculum conic-rostellate ; annulus none. Peristome double, of 1 U 

 yellowish linear lanceolate jointed teeth, connivent at the apex when dry, and as 

 many alternate liliform carinate processes as long as the teeth, upon a short basilar 

 membrane ; ciliohc none. 



About 50 specii's, of uliieli half a dozen are Nortli American and also mostly European, 



1. N. Menziesii, Drum. Ihoadly and loosely cespitose, yellowish green ; 

 primary stems very slender, thigellitbrm, tlie secondary G inches long or more, llat- 

 tened, with short spreading branches often tlagellately produced : leaves oV)long- 

 ligulate, obtusely apiculate, concave, the costa ceasing above tlie middle ; pericha'tial 

 leaves lanceolate, acuminate : capsule immersed on a short peilicel, oblong-oval, pale 

 brown : inner processes rather stout, dehiscing along the keel. — Muse. Amer. n. 1G2 ; 

 Muell. Syn. ii. 48 ; Sulliv. Icon. Muse. Suppl. 83, t. 02 ; Sulliv. A: Lesq. Muse. 

 Am.-Bor. E.xsicc. 2 ed. n. 395. 



On shaded rocks in Yoseniite Valley and in Russian Valley {Buhnulcr) ; at base of trees near 

 Crescent City {Brewer) ; Cascade lilountains, Oregon (Xcwbcrrij, Hall) ; Fort Colville (Lyall) ; 

 Rocky Mountains, British America, Urummond. Also in Switzerland. 



2. N. Douglasii, Hook. Loosely ces])itose; stems a span long or more, pinnately 

 and bipinuately branched ; branches elongated : leaves crowded, distichously tlattened, 

 oblong or sublauceolate, acute, nerveless, serrulate at the apex, pale green ; peri- 

 choetial leaves broadly ovate to long-acuminate, convolute : capsule a little e.xsertcd, 

 oval; operculum long-rostrate. — 13ot. Misc. i. 131, t. 35; Sulliv. X' Lesq. I.e., 

 n. 39-1. 



On trees, Marin County and j\Icndocino City {I'wlandcr) ; Columbia Itiver (Miiiziai, fhwj/ns, 

 Scolder) ; Vancouver Island, Wood. 



52. ANTITRICHIA, BridL-l. 



Eeserabling the last genus. Leaves spreading, not complanate nor undulate, 

 ovate-acuminate, costate to tlie middle. Capsule exserted upon a short erect or 

 curved pedicel. Liner peristome of 16 shorter subulate-lililbrm fugacious processes. 

 Only the following species are known. 



1. A, curtipendula, Lrid. Secondary stems h to 1 foot long, irregularly pin- 

 nately branclied, not rooting : leaves broadly ovate-lanceolate, acuminate, ciliate- 

 serrate at the apex, with recurved margins, sometimes with 3 to 5 short nerves at 

 base, the central ceasing above the middle ; areolation of very narrow subtiexuous 

 cells acute at eacli end : pedicel more or loss tlexuous ; capsule ovaloblong ; oper- 

 culum obliquely conic-rostrate : processes a little shoiter than the teeth. — Lruch & 

 Schimp. Bryol. Eur. t. 409; Wilson, Bryol. Brit. t. 22 ; Sulliv. in Cray's ]\Ian. 2 ed. 

 t. 4; Berkeley, Brit. Moss. t. 13, iig. 4. iVnkera curllj)en(liila, lledw.; Kngl. Bot. 

 t. 1444. 



Var. gigantea, Sulliv. & Lesq. Very stout, dark green, with broader secund- 

 falcate leaves, and longer cylindrical capsule. — Muse. Am.-Bor. Exsicc. 2 ed. n. 35G ; 

 Schimp. Syn. 2 ed. 577. 



On Monte Diablo {Ihdander); Oregon {PichzruKj) ; Vancouver I.slaiid (]l\>od); Atlantic Stales 

 and Europe. The vaiiely un trees at Rcilwoods, JJulnndcr. 



