118 , BRYACE^E. [Barbula. 



8. B. marginata, Brueh & Schimp. Monoecious: habit 

 and mode of growth as in B. Bolanderi ; leaves soft, oblong, 

 Ungulate or subspatulate, obtuse or slightly acuminate, mucro- 

 nate or cuspidate, carinate-concave, bordered by a double layer 

 of two or three rows of rectangular thick yellowish cells ; costa 

 yellow, passing beyond the apex ; areolation minutely quadrate- 

 hexagonal, chlorophyllose and papillose in the upper pait, loose 

 and smooth in the lower : male flowers axillary : capsule oblong- 

 cylindrical, light brown; lid narrowly conical, blunt, slightly 

 curved; teeth twisted once; annulus broad, simple. — Bryol. 

 Eur. 1. 158. Tortilla ccesjntosa, Hook. & Grev. T. marginata, 

 Spruce ; Lindb. Trichost. 238. 



Hab. California (Bujeloio); walls of houses in Virginia and Wash- 

 ington {James). 



9. B. Bolanderi, Lesq. Dioecious: plants 5 m.m. long, 

 gregarious, dirty straw-color, simple or fasciculately branched at 

 the apex : lower leaves short, o]>en, the upper rosulate, spread- 

 ing or reflexed. Ungulate or oblong, obtuse, apiculate by the 

 thick brown excurrent costa; borders flat, or reflexed in the 

 middle of the leaves : male plants slender, intermixed with the 

 fertile ones: capsule narrowly ovate, erect or inclined, dark 

 red; lid conical - rostrate, blunt, straight or inclined; teeth 

 granulose, on a short basilar yellowish membrane, twisting 

 once; annulus narrow, simple, persistent. — Trans. Am. Phil. 

 Soc. xiii. 5 ; Sulliv. & Lesq. Muse. Bor.-Am. Exsicc. (ed. 2), 

 n. 139. 



Hab. Rocks near the Bay of San Francisco, California (Bolander), 

 abundant. 



Related to B. Vahllana and B. marginata, but differing from the first in 

 its shorter rosulate simple stems, from the second in the emarginate leaves 

 and simple annulus, from both in the broader Ungulate merely mucronate 

 leaves, the dark red capsule, the short basilar membrane of the peristome, 

 and the diojcious inflorescence. 



10. B. amplexa, Lesq. 1. c. Dioecious : plants gregarious, 

 very short, dirty green : leaves hard but fragile, loosely imbri- 

 cate. Ungulate, obtuse or short-acimiinate, concave, with borders 

 revolute in the middle or j^lane all around ; costa thick, vanish- 

 ing below the apex ; upper areolation chlorophyllose, opaque ; 

 inner perichaetial leaves two, closely clasjung the vaginule, erect, 

 abruptly rccitrved at the ajiex, sometimes truncate, apiculate : 

 capsule short, narrow, pale green when young, yellowish when 



