134 PKOCEEDINGS OF THE AMERICAN ACADEMY 



majoribus valde fibrosis, cellulis chlorophyllosis perangustis paulum 

 versus dorsum dispositis omnino vel fere obvelatis poris nurnerosis. 



Flores dioici. Perichastium haud vaginans ; folia ascendeudo 

 majora, subremota, subfalcata, secuuda, elongato-lanceolata, valde con- 

 cava, pallide viridia, mollia, laxe cellulosa, limbo latiusculo e cellulis 

 angustis elongatis formato, cellulis hyalinis basilaribus maximis siue 

 fibris et poris, superioribus fibrosis et parcius porosis ; apice augusto 

 eroso. 



Capsulse in eodem capitulo complures pseudopodio elongato albi- 

 cante suffultae parvulas, rufo-brannea?. Sporaa luteae magnse. 



Hab. Florida (Garber). 



In the disposition of the branches, the color of the plant, the serni- 

 squarrose greenish leaves, and the general facies, this species is similar 

 to S. humile, Schimp., as described and figured in Sullivant's Icones, 

 p. 5, tab. 3. Its size is a little smaller, and the capsules longer pedi- 

 celled and also smaller. This difference is marked, and renders the 

 species recognizable at first sight. The absence of pores in the 

 areolae, and the immarginate branch leaves, truncate-dentate at the 

 apex, are also characters which separate this species from S. humile 

 and related congeners. 



Arciudium LONGiFOLimi. Differt ab Archidio altemifolio planta 

 tenuiore ; foliis angustioribus, longioribus, anguste e lanceolato subula- 

 tis ; costa superiorum in subulam laeveru excedente. Antheridia 2 in 

 foliorum perichsetialium axillis. 



Hab. Florida {Garber). 



The longer narrow leaves give this moss an aspect far different 

 from that of A, altemifolium, with which it is distantly comparable. 

 The capsule and its spores have the same character. 



Bruchia flexuosa, Schwaagr. Caulis semiuncialis et longior 

 pertenuis. Folia inferiora remota, parvula, media sensim longiora, 

 anguste lanceolato-subulata, e basi erecta patula ; summa in comam 

 suberectam conferta, e basi ovato-oblonga concava anguste lanceolato- 

 subulata, summo ajnce leviter serrata ; costa tenui cum vel sub apice 

 evanida ; rete basilare laxiusculum hexagono-rectangulum superius 

 angustum. 



Flos bisexualis. Capsula in pedicello longiore leniter curvato ob- 

 longa, longicolla (collo sporangio sequali) in rostellam producta. 



Hab. On moist exposed grounds in the Southern States. 



Bruchia Sullivanti, Austin. Caulis perbrevis. Folia suberecta, 

 media e basi brevi-ovata, anguste lanceolata, summa e basi longiore 



