618 (18) Musci. (mosses.) 



7, "WEISIA, Hedw. (Tab. I.) 



Calyptra cucullifonn. Operculum rosteate. Capsule oval, annulate, exsert- 

 ed. Peristome 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 quadi-ate areolation. — 

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



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

 crisped when dry ; costa slightly excurrent. — Old fields, meadows, «S;c. : very 

 conmion and variable. (Tab. I.) (Eu.) 



8. RHABDOTVEISIA, Br. & Sch. (Tab. I.) 



Calyptra cucuHiform. Operculum with a long oblique rosti'um. Capsule 

 shoit-oval, 8-sti-iated, annulate, exserted. Peristome single, of 16 subulate or 

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

 tei-minal, 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 

 pajSSos, a stria, and Weisia). 



1. K. fiUg'aX; Br. & Sch. Leaves linear-lanceolate, carinate, costate to 

 the apex, nearly entu-e on the margins, crisped when diy, more or less papillose ; 

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

 of the peristome subulate, fixgacious. — White Mountains, New Hampshire, 

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



2. R. deuticillata, Br. Sr Sch. Very near the last, but rather larger; 

 leaves linear-lanceolate, approaching to lingulate, coarsely sen-ate at the apex ; 

 ai-eolation larger; teeth of the peristome lanceolate, not fugacious. — Crevices 

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



Teibe m. SELIGERIE^. 



9. SEIilOERIA, Br. & Sch. (Tab.I.) 



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

 bose-jjyriform, exannulate, exserted^ Peristome single; teeth 16, lanceolate, 

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

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

 lanceolate-subulate, with a stout excunent 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. AUeghan., No. 142.) — Limestone rocks, in 

 shaded ravines. Central Ohio. (Tab.I.) (Eu.) 



2. S. recnrvata, Br. & Sch. Eesembles the last (and grows with it), 

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

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



