618 musci. (mosses.) 



7. W E I S B A , Iledw. (Tab. 15.) 



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

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

 rated, without a medial line. Inflorescence monoecious or dioeeious. — Small 

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

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

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



1. W. vil'tdsila, 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. RHABDOWEISIA, Br. & Sch. (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 

 pdfidos, a stria, and Weisia). 



1. K. fllgax, Br. & Sch. Leaves linear-lanceolate, carinate, 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. K. dcnticulata, Br. & Sch. Very near the last, but rather larger; 

 leaves linear-lanceolate, approaching to lingulate, 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. SELIGERIA, Br. & Sch. (Tab. 15.) 



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

 bose-pyriform, exannulate, exserted. Peristome 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. tristicha, 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. Resembles 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.) 



