3(j2 MUSCI. Pottia. 



r. RUBlGixosA (Bnrhula rubiginosa, ft[itten, Journ. Linn. Soc. viii. 27), collected liy Doiujias, 

 may be tbiuul in Northcrii California. It is a ilirecious species, witli s|ireailinf,' leaves, cnrveil and 

 appressed when dry, the lower ovate, the nj)per .subulate-lanceolate from an ovate decnrrent base, 

 acute with the costa reachinff the thickish i\\Mi\, niarj,'in recurved, areolatuon minute, rounded, 

 minutely papillose ; j)ericli;etial leaves larger, erect, convolute, subulate-apiculate with excurrcnt 

 costa : capsule oval-cylindric, upon a red pedicel ; operculum conic, half as long as the capsule ; 

 annulus of a triple row of cells. 



* . * Per 1st om e dlst inct. — Ax acaly pta. 



6. P. Starkeana, Muell. Closely reseiubliiig P. viimdald, from wliicli it is 

 (listinguifslied hy limadur and conii>aratively shorter leaves, more shortly cuspidate 

 and with narrower and less distinct areolation, the oval capsule with a narrow per- 

 sistent annulus, and the pale or yellowish peristome of IG ohtuso or truncate 3-4- 

 jointed entire or cribrose teeth. — Syn. i. 547. Weissia Starkeana, lledw. 1. c. 

 iii. 83, t. 34. Auacalypta Starkeana, Nees k Ilornsch. ; Hruch & Scliimp. Bryol. 

 Eur. t. 125 ; Wilson, 1. c, t. 14 ; Sulliv. <t Lesq. 1. c, n. 111). 

 Mission Dolores, on clayey ground (Bulaadcr); also European. 



8. WEISSIA, Iledw. 

 Low cespitose perennials, dichotomously or fastigiately branched, on the ground 

 or on rocks. Leaves in 8 ranks, linear-lanceolate to oblong-subulate, costate ; areo- 

 lation minute, quadrate, at base rectangular and hyaline. Inllorescence monoecious, 

 terminal, bud-like. Calyptra cucullate, long-beaked. Capsule erect upon a rather 

 long pedicel, oval or oblong, with rostrate operculum, ami peristome of IG ilat 

 lanceolate or truncate teeth, entire or bihd at the apex, transversely jointed and often 

 perforated. 



A genus variously limited, represented by a single species in the Atlantic States, by 8 or 9 in 

 Europe, and most abundantly in South America. 



* Perichcetial leaves not sheathing : teeth of peristome somewhat irrcrjular. 



1. W. Viridula, Bridel. Stems about half an inch high, nearly simple or 

 f\xstigiately branchctl, in bright green more or less crowded tufts : leaves linear- 

 lanceolate, flexuous-spreading, with very involute margins, crisped when dry, the 

 costa sliglitly excurrent : capsule ovate to oblong, browji or reddish ; teeth very 

 variable, often rudimentary, reddish, 2-5-jointed. — Bruch k Schimp. Ihyol. Eur. 

 t. 21 ; Sulliv, in Gray's j\lan. 2 ed. G18, t. 1. W. contruversa, lledw.; \\'ilson, 

 Lryol. Brit. t. 15. 



Var. Capsule longer, ovate-cylindrical, regularly striate or i)licate, green. — Lesq. 

 in Mem. Calif. Acad. i. G. 



On the ground at and around San Francisco, both forms, Bolandcr. A common and very 

 variable species, in the Atlantic States and throughout Europe, on roadsides and in fields and 

 meadows. 



* * Pericha-tium distinct, sheathing : teeth more yer feet, lanceolate. — {Dicrano- 

 weissia, Lindb.) 



2. W. Cirrhata, Hcdw. Tufted, soft, the taller stems nnich branched, bright 

 green above, pale ferruginous below : leaves spreading, linear-lanceolate from an 

 oblong-ovate base, crisped when dry, the margins retlexed and costa rarely slightly 

 excurrent ; perichsetial leaves broader and shorter, somewhat slieathing nearly to 

 the apex : capsule long-oblong, subcylindrical, pale brown with a small reddish 

 orifice, and a persistent annulus of 3 rows of cells : teeth narrowly linear-lanceolate, 

 entire, erect when dry, reddish purple, paler above. — Spec. G9, t. 12; Ih'uch & 

 Schimp. 1. c, t. 25 ; Wilson, 1. c, t. 15. Dicranoweissia cirrhata, Schimp. 



Common in the redwoods and at the Big Tree groves, especially on burnt and decayed wood 

 (Bujclow, Bolandcr) ; Washington Territory and Oregon, Doii/jlas, Lij(dl. Also European. 



