4Q3 MUSCI. Nechra. 



51. NECKERA, Hedw. 



Eather large creeping perennials, on trees or rocks, the secondary stems erect or 

 ascending or pendulous, pinnately branched. Leaves complanate, shining, scarious 

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

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

 cucullate, naked. Capsule erect, shortly pedicellate, immersed or emergent, ovate, 

 symmetrical ; operculum conic-rostellate ; anuulus none. Peristome double, of 1 G 

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

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

 membrane ; ciliolae none. 



About 50 species, of which half a dozen are North American and also mostly European.. 



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

 primary stems very slender, flagelliform, tlie secondary 6 inches long or more, flat- 

 tened, with short spreading branches often flagellately produced : leaves oblong- 

 ligulate, obtusely apiculate, concave, the costa ceasing above the middle ; perichtetial 

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

 brown : inner processes rather stout, dehiscing along the keel. — Muse. Amer. n. 162 ; 

 Muell. Syn. ii. 48 ; Sulliv. Icon. Muse. Suppl. 83, t. 62 ; Sulliv. & Lesq. Muse. 

 Am.-Bor. Exsicc. 2 ed. n. 395. 



On shaded rocks in Yosemite Valley and in Russian Valley (Bohnidcr) ; at base of trees near 

 Crescent City (Brewer) ; Cascade Mountains, Oregon (Newberry, Hall) ; Fort Colville (Lyall) ; 

 Kocky Mountains, British America, Drummond. Also in Switzerland. 



2. N. Douglasii, Hook. Loosely cespitose ; stems a span long or more, pinnately 

 and bipinnately branched : branches elongated : leaves crowded, distichously flattened, 

 oblong or sublanceolate, acute, nerveless, serrulate at tlie apex, pale green ; peri- 

 chsetial leaves broadly ovate to long-acuminate, convolute : capsule a little exserted, 

 oval; operculum long-rostrate. — Bot. Misc. i. 131, t. 35; Sulliv. & Lesq. 1. c, 

 n. 394. 



On trees, Mai-in County and Mendocino City (Bohmder) ; Columbia Eiver {Mcnzies, Douglas, 

 Scolder) ; Vancouver Island, Wood. 



52. ANTITRICHIA, Bridel. 



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

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

 curved pedicel. Inner peristome of 16 shorter subulate-filiform fugacious processes. 



Only the following species are known. 



1 . A. curtipendula, Brid. Secondary stems | to 1 foot long, irregidarly pin- 

 nately branched, 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 subflexuous 

 cells acute at each end : pedicel more or less tiexuous ; capsule oval-oblong ; oper- 

 culum obliquely conic -rostrate : processes a little shorter than the teeth. — Bruch & 

 Schirap. Bryol. Eur. t. 469 ; Wilson, Bryol. Brit. t. 22 ; Sulliv. in Gray's Man. 2 ed. 

 t. 4; Berkeley, Brit. ^NIoss. t. 13, fig. 4. Neckera curtipendula, Hedw.; Engl. 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. 356 ; 

 Schimp. Syn. 2 ed. 577. 



On Monte Diablo (Bolander) ; Oregon (Pickering) ; Vancouver Island ( Wood) ; .Vtlantic States 

 and Europe. The variety on trees at Redwoods, Bolander. 



