MUSCI. (MOSSES:) 630 



4. B. microcdrpum, Brid. Tufts rather compact, stems slender, 

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

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

 motely serrated hair-point ; areolse everywhere elongated and sinuous ; capsule 

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

 tains. (Eu.) 



5. B. lamisnudsuiii, Brid. Patches loose, extensive, hoary; stems 

 much elongated (4' -10'), slender, flexuose, fragile, with fasciculate branches; 

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

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

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

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



6. B. caiiescens, Brid. Patches loose, large, yellowish-green or hoary ; 

 stems 2' 4' long, more or less fusciculately 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, Oakes. (Eu.) 



TRIBE XVI. HEDWIGIE^. 



4O. II ED WIG I 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 flowei 

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

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

 pillose, not costate, 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. H. ciliata, Ehrh. Stems 1'- 4' long, rooting at the base only; leaves 

 sometimes 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. BUXBAUMlfcjB. 



41. BUXBAtllWIA, Haller. (Tab. 17.) 



Calyptra cylindrical-campanulatc, 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 moncecious : 

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

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



