46 BKYACE^. [Bruchia. 



2. B. flexuosa, Muell. Stems comparatively long, curved 

 downward at base : stem-leaves distant, very small, narrowly 

 lanceolate-subulate, obscurely serrate at the apex : ilowers 

 moncecious or paroecious ; antheridia in the axils of comal leaves 

 or in separate buds. — Bot. Zeit. v. 99. Phascum Jiexuosum, 

 Schwaegr. Suppl. ii. 1, t. 101. 



Var. microcarpa, Wils. Very slender : leaves very nar- 

 rowly subulate, the entire margin obscurely serrulate : capsule 

 narrow, longer apiculate, long-pedicellate, — H. microcarpa, 

 Wils. ; Drunim. JMusc. Amer. (Coll. II.), n. 14. Sporledera 

 setifolia, Jaeger, Muse. Cleist. 35. 



Hab. Clayey ground in fields, mixed with the following. 



3. B. Sullivantii, Aust. Similar to the last, differing 

 merely in the short stems and narrowly ovate-lanceolate leaves, 

 the upper somewhat longer and elongated lanceolate-subulate, 

 subpaj)illose, the areolation more compact and texture more 

 solid. — Bull. Torr. Club, vi. 143. H. flexuosa, Sulliv. Icon. 

 Muse. 22 (excl. descr.), t. 13. 



Var. nigricans. Leaves shorter: capsule with a shorter 

 collum : spores larger. — P. flexuosa, var. nigricans, Sulliv. 

 Mosses of U. States, 17 ; Sulliv. & Lesq. Muse. Bor.-Ara. Exsicc. 

 n. 33. H. nigricans, Austin, 1. c. 



Hab. With the preceding; the variety on borders of depressions filled 

 with water and ConfervcB at the top of the Kaccoon Mountains, Alabama 

 (Lesquereux). 



The variety is evidently due to immersion, as higher upon the dry sand 

 of the borders of the depressions the moss gradually assumes its normal 

 form. 



4. B. Bolanderi, Lesq. Monoecious, densely gregarious or 

 subcespitose, pale green : stem-leaves distant, lanceolate, the 

 comal erect-spreading, short-subulate from the lanceolate slightly 

 enlarged base ; costa broad, flat, vanishing below the obtusely 

 serrulate apex ; perichaetial leaves tubulose, narrowly lanceolate 

 from the middle : male flowers in separate buds upon the 

 primary prostrate stems : capsule erect or slightly oblique, long- 

 necked, upon a long flexuous thick j^edicel ; calyptra short, 

 split to the middle on one side. — Mem. Calif. Acad. i. 5 ; 

 Sulliv. Icon. Muse. Suppl. 23, t. 14. 



Hab. Westfall's Meadow, near Bigtree Grove, Mariposa County, Cali- 

 fornia, at 8,000 feet altitude (Bolander). 

 The species is allied to the European B.Vogesiaca, Schwaegr., differing 



