370 MUSCI. rnubula. 



7. B. Vahliana, Sclmltz. Ifesembling the last : leaves more oLlong, opaque 

 ■vvitli a closer areolatiou above, the margins rarely reilexed, strongly crenulate, and 

 costa always excxirreut : capsule elongated, narrow ; annulus Lroad, compound. — 

 Kecens. Bark 222, t. 34, lig. 31 ; Bruch k, 8chimp. 1. c, t. 157. 



In the Coast Itanges, at Cajou Pass (Bigclow) and on ^lonte Diablo, Bulandcr. Also in Western 

 Euioj)e, rather rare. 



++ ++ I II florescence d'nncious. 



8. B. marginata, Bruch & Schimp. "With the hahit of the preceding : leaves 

 oblonglanceolate, ol)luse or obtusish, niucronate with the excurrent costa, concave, 

 the margin distinctly thickened : capsule oblong-cylindric, slightly curved, brown, 

 with a rather broad simiile annulus: teeth once twisted. — Bryol. Kur. t. 158. 

 Tortula marginata, Wilson, Bryol. Brit. 131, t. 43. 



On rocks near San Francisco (Biyelow, Bolamlcr) ; Atlantic States ; Europe and Northern Africa. 



9. B. Bolanderi, Lestp Stem short, simple or fasciculately branched : upper 

 leaves densely rosulate and reilexed, ligidate or oblong, obtuse or shortly apiculate 

 by the excurrent thick brown nerve, the areolation chlorophyllose above; inner 

 perichaBtial leaves short : capsule dark red, cylindric, on a short reddish pedicel, 

 with beaked opentulum and short simple annulus : peristome reddish, twisted. — 

 Trans. Amer. riiil. Soc. xiii. 5 ; Sulliv. it Lescp 1. c, 2 ed. n. 13'J. 



On rocks near the Lay of San Francisco (Bohviukr) ; C'oloiado, Hall. 



10. B. amplexa, Lesq. 1. c Closely resembling the last : leaves softer and 

 more loosely imbricated, longer, obtuse, and nerve not excurrent, the areolation 

 pellucid; inner pericluetial leaves elongated, erect, closely embracing the base of 

 the pedicel : capsule shorter and smaller, pale green, with shorter ol)tuse operculum. 

 — Sulliv. k Lesq. 1. c, n, 140. 



Near San Francisco, Bolamlcr, Gibboiii. 



11. B. brevipes, Lesq. Stem very short, simple: leaves crowded, ligulate or 

 oblong, obtuse and tipped by the slender excurrent costa, concave and the margin 

 revolute, areolation above close and chlorophyllose: capsule long-cylindrical, slender 

 and somewhat curved ; operculum long-conic : peristome upon a long tubular mem- 

 brane, closely twisted, red. — Mem. Calif. Acad. i. 12. 



On mud walls at Mission Dolores, in mats an incli broad or more, and on Russian IJiver divide 

 {Bolamlcr); near Caraon City, and on rocks in the Trinity Mountains, Nevada, Watson, n. 1391. 



§ 3. Rather taller 2ierennlals, with lanceolate leaves {costa not excurrent or 

 sliijhthj so), and lonr; jieristonie upon a very short basal membra ne : flowers 

 dioecious: j^ericJiatiuiii more or less sJieathincj. — Toutula. 



* Leaves often brownish, nearly straiyht wJien dry. Species mostly closely 



allied. 

 -<- Peristome several times ttristed. 



12. B. fallax, lledw. Cespitose, \ to 1 inch high, brownish green: leaves 

 squarrose, recurved-spreading, twisted when dry, lanceolate or linear-lanceolate, 

 acuminate, carinate, the margin revolute and costa ceasing at the apex or slightly 

 excurrent ; areolation minute, uniform throughout : capstde narrowly ovate-oblong, 

 .slightly curved, brown upon a red jjedicel, without anntdus ; oj)erculum purjde, 

 subulate, as long as the capsule : peristome red, upon a very narrow base, very long, 

 twisted closely. — IMusc. Fronil. ii. GO, t. 24 ; Uiuch it S(diinq). 1. c, t. 147. 



At Cajon Pass and near San Francisco, Bhjrlinv. Also throu^'hout F.uroi)e, very coinninn, 

 growing on the ground. 



13. B. subfallax, Muell. ]\ruch like the last : leaves green, loosely indtricated, 

 rather broadly n\ ate lanceolate, with strongly revolute margins, the areolation at 

 base more rectangular and pellucid than above, and the broad stotit costa excurrent 



