MUSCI. (mosses.) 631) 



4. R. mici'OC&rjngBii, Brid. Tufts rather compact, stems slender, 

 fasciculately branched, with numerous short branelilets ; leaves yellowish, spread- 

 ing, recurved or falcate-secund, lanceolate, tapering, with a short diaphanous re- 

 motely serrated hair-point ; areolae every where elongated and sinuous; capsule 

 small, oblong; teeth of the peristome short. — Dry rocks, Alleghany Moun- 

 tains. (Eu.) 



5. R. laaiiG^isausuBil, Brid. Patches loose, extensive, hoary; stems 

 much elongated (4'- 10'), slender, ilexuose, fragile, with fasciculate brandies; 

 leaves crowded, erect-patent, rather flexuous, linear-lanceolate, tapering into a 

 long diaphanous erose-dentate hair-point ; areohe elongated and sinuous ; cap- 

 sule small, ovate-oval, on a short scabrous pedicel ; teeth of peristome very long, 

 2-clcft, filiform. — Rocks. White Mountains, New Hampshire, Oakes. (Eu.) 



6. R. caBaesccsBS, Brid. Patches loose, large, yellowish-green or hoary ; 



stems 2' -4' long, more or less fasciculately branched; leaves spreading, re- 

 curved, ovate-lanceolate, with a short erose-denticulate hair-point, papillose on 

 both surfaces, the margins recurved; areolation as in No. 5: capsule ovate- 

 oblong, on a long smooth pedicel ; teeth of the peristome as long as the capsule, 

 very slender, 2-parted, nodulose. — With the last, Oahs. (Eu.) 



Tribe XVI. HEDWIGIE^. 



40. ME© WIGS A, Ehrh. (Tab. 16.) 



Calyptra small, conic, smooth, sometimes hairy. Operculum plano-convex, 

 with or without a central papilla. Capsule globose, erect, entirely immersed, 

 very short-pedicellate. Peristome none. Inflorescence monoecious : male flower 

 gemmiform, axillary. — Habit and mode of growth like Schistidium: stems di- 

 chotomously or irregularly branched ; leaves spreading, ovate-lanceolate, pa- 

 pillose, not costatc, the apex diaphanous, erose-denticulate or fringed on the 

 margins ; cellules at the central base elongated and subflexuous, elsewhere small 

 and quadrate. (Dedicated to the distinguished cryptogamist, J. G. Hedwig.) 



1. M. ciiliieia, Ehrh. Stems 1' -4' long, rooting at the base only; leaves 

 sbmetimes secund, with a longer or shorter diaphanous point. — On rocks and 

 bowlders ; very common, forming large and hoary glaucous-green patches. 

 (Tab. 16.) (Eu.) 



Tribe XVII. BUXBAUMIE^. 



41. BUXBAUMIA, Hallcr. (Tab. 11.) 



Calyptra cylindrical-eampanulate, small, covering the operculum only. Oper- 

 culum small, conic, obtuse. Capsule large, elongated-ovate, oblique, flat on the 

 upper side, convex and gibbous underneath, apophysate, long-pedicellate. Peri- 

 stome double (?) ; the exterior an irregularly incised membrane, composed of 

 3 or 4 layers of elongated cellular tissue, or 16 linear moniliform papillose teeth ; 

 the interior a whitish and conic plaited membrane. Inflorescence monoecious ; 

 male flower gemmiform; antheridium solitary, roundish. — Minute annuals or 

 biennials ; stems scarcely any, partly buried in the soil ; leaves few (5 or 6), scale- 



