Ikubiila. MU8CI. 3(',() 



§ 2. Low pcrcnntdls, tvltlu rather broad soft, leaves: tiibitlar hasc of the 

 2)eristome short {except in n. 11). — Ijakdula. 



* Leaves thin and smooth, hroadli/ ovate- or ohlontj-lanceolate, the casta j^^'o- 

 duced into a hair-like axon, and beariuj toward the ajJCX of the leaf a dense 

 cluster of fjrcen filaments. 



2. B. membranifolia, Scluiltz. Stems in dense hoary mats, ^ to 1 inch 

 liigli, simple or bninclied : leaves erect-spreading, broadly ovate, strongly concave, 

 the apex white -membranous and dentate, tipjted by a very long hair : flowers 

 )uonoecious, the male near the female, with 1 or 2 perigonial leaves : capsule erect 

 upon a red pedicel, ovate-elliptic or Jiarrowed and slightly incurved, brown or hlack- 

 ish, half-covered by the whitish calyptra; operculum narrow; annuhis simple: 

 teeth thrice twisted. — JJruch «fe Schiuip. 1. c, t. 140. Tortula viembranifolia, 

 Ilook. Muse. Exot. i, t. 2G. 



Wcslorn Aiizoiia, on Willinms HiviT, iioar tlic iiioiitli of Sniita Maiia ("rcnk (Bi(jrlou), o.\\\i 

 rei>ortf(I by Scliinipcr as I'lom ('aHlbniia; tliioiigli Soutlicni Europe ami in tlic Caucasus. 



3. B. chloronotos, Ihuch, Smaller than the last, with smaller and narrower 

 leaves, not white-membranous, and tip|)ed with a shorter awn : llowers dioecious, 

 the male flowers terminal and peiigonial leaves many : capsule smaller, with com- 

 pound annulus, and shorter twice twisted peristome. — Eryol. Eur. t. 141. Tortida 

 rrnxxinervia, DeNot. ]\[usc. Ital. i. 23, t. G. 



Collected with tlie last by Bigclow ; also European. 



* * Leaves oblong or ovate-oblonr/, papillose, mucronate, twisted or contorted 



when drtj. 

 -1- Divisions of the teeth nne<iual, becomin;/ sliglitlij twisted when damp. 



4. B. atrovirens, Si.-himp. Kather loosely matted, dull green, about 3 lines 

 high : leaves crowded, sitreading, ovate-oblong, shortly acuminate, concave, the 

 margin narrowly revolute, the strong nerve thickened above and slightly excurrent 

 or ceasing below the apex : male flowers bud-like at the l)ase of the fertile branch : 

 capsule oblong-elliptic, brown upon a yellowish pedicel ; o])erculum obliquely 

 beaked; annuhis simple. — Syii. j\lusc. Eur. 2 cd. 194. (irimiuin atrovirens, 

 I'lngl. IJqt. t. 2015. J)rsmatoilo)i tiervosns, Hruch. it Schimp. 1. c, t. 132; Wilson, 

 1. (■,., t. 20. J). nervD.iiis, var. eilciitulus, Sulliv. it Lescp ^lust;. Am.-l>or. Exsicc. 

 2 ('(1. n. 121. J). Ca/ifoniiciis, Lescp Mem. ('alif. Acad. i. 10. 



On the f^round and oM adobe walls near San Vrnwc'^ico { Ih)lan(ln) ; Guadii]u|ic Island (Palmer) : 

 thron^'liout Europe, and ran{;in<; to the Capo oC Good lloi)e. 



f). B. Guepini, Schimp. 1. c. 197. Lower leaves ovate-lanceolate, the upper 

 ovate-oblong, strongly papillose, with refle.\ed margins, and awned by the excurrent 

 costa : male flowers lateral, with 2 or 3 perigonial leaves : capsule oblong and 

 subcylindric, brown, with a tall conical shortly beaked yellow operculum ; annulus 

 narrow. — Desmatodon Guepini, Uruch k Schimp. 1. c, t. 133. 



On the ground near Oakland, Bolnndrr. Otherwise known only from France. 

 -)- -*- Teeth of the peristome long and closely twisted. 

 +-»■ Lifiorescence monnecious. 



0. B. cuneifolia, Ihidel. Stems densely clustered, 2 or 3 lines high, simple : 

 lower leaves remote, broadly ovate, acuminate, the upper spreading-rosulate, oblong- 

 ovate or spatulate, shortly acuminate, margin flat, tlie thin nerve ceasing below the 

 apex or excurrent, all flaccid, loosely areolate and almost pellucid, crisped when 

 dry : capsule elliptic-oblong, straight or iiearly so ; operculum narrowly conic, 

 straight ; annulus simi)le, narrow : peristome ]iale, upon a rather broad base. — 

 Bruoh & Schimp. 1. c, t. 150. Tortula cuneifolia, Smith, Eng. ]>ot. t. 1510. 



On clay soil near Oakland (Dolandrr) ; Western Euroi)e. Variable in the foini of its leaves. 



