618 MUSCI. (MOSSES.) 



7. WE 181 A, Hedw. (Tab. 15.) 



Calyptra cuculliform. Operculum rostrate. Capsule oval, annulate, exsert- 

 ed. Peristorac single, of 16 linear-lanceolate articulated teeth, entire or perfo- 

 rated, without a medial line. Inflorescence monoecious or dioecious. Small 

 species, growing on the ground ; stems more or less fastigiately branched ; leaves 

 linear-lanceolate, costate, of a dense and somewhat quadrate areolation. 

 {Named after F. W. Weis, a German cryptogamic botanist.) 



1. W. viridula, Brid. Leaves very much involute on the margins, 

 crisped when dry ; costa slightly excurrent. Old fields, meadows, &c. : very 

 common and variable. (Tab. 15.) (Eu.) 



8. IlIIABDOWEISIA, Br.&Seh. (Tab. 15.) 



Calyptra cuculliform. Operculum with a long oblique rostrum. Capsule 

 short-oval, 8-striated, annulate, exserted. Peristome single, of 16 subulate or 

 lanceolate teeth, without a medial line. Inflorescence monoecious : male flower 

 terminal, gemmiform. Size and aspect of the species very much as in the last 

 genus, from which it is separated by the striated capsule (hence its name, from 

 pd/3Sof, a stria, and Weisia). 



1. It. f ii^ax, Br. & Sch. Leaves linear-lanceolate, carinatc, costate to 

 the apex, nearly entire on the margins, crisped when dry, more or less papillose ; 

 the areolation dense and quadrate above, larger, looser, and oblong below ; teeth 

 of the peristome subulate, fugacious. White Mountains, New Hampshire, 

 Oakes; rare. (Tab. 15.) (Eu.) 



2. R. deiltic ill fata, Br. & Sch. Very near the last, but rather larger; 

 leaves linear-lanceolate, approaching to Ungulate, coarsely serrate at the apex ; 

 areolation larger ; teeth of the peristome lanceolate, not fugacious. Crevices 

 of rocks, on high peaks of the Alleghany Mountains ; not uncommon. (Eu.) 



TRIBE III. SELIGERIE^E. 



9. SEL.IGERIA, Br. & Sch. (Tab. 15.) 



Calyptra cuculliform. Operculum large, obliquely rostrate. Capsule glo- 

 bose-pyriform, exannulate, exserted. Perisfome single; teeth 16, lanceolate, 

 obtuse, without a medial line. Inflorescence monoecious : male flower gemmi- 

 form, terminal. Very small, almost stemless mosses, growing on rocks ; leaves 

 lanceolate-subulate, with a stout excurrent costa ; the areolation dense, except at 

 the base. (A personal name.) 



1. S. triSticlia, Br. & Sch. Stems 2" -3" high, 3-ranked, 'obtuse at 

 the apex. (Weisia calcarea, Muse. Alleghan., No. 142.) Limestone rocks, in 

 shaded ravines, Central Ohio. (Tab. 15.) (Eu.) 



2. S. recurvata, Br. & Sch. Kesembles the last (and grows with it), 

 bomewhat larger ; leaves not 3-ranked, acute ; capsule not so globose, pendu- 

 lous on a longer curved pedicel, erect when dry. (Eu.) 



