Musctr Exorici.—WMeneiesiani. 
HYPNUM CRISPIFOLIUM., 
HHypnum caule repente pinnatim ramoso, foliis flaccidis 
falcato-secundis, caudinis deltoideis, rameis ovato-lan- 
ceolatis, omnibus serratis flexuosis longe acuminatis, 
seta scabra, capsula ovata cernua. (Tas. XXXI.) 
Has. In plaga occidentali America Borealis. D. Menzies, 1791. 
Caules 4-5-unciales, repentes, vage divisi, pinnatim ramosi, ra- 
mis spe iterum pinnatis. Folia luteo-viridia, opaca, sub- 
falcato-secunda ; caulina deltoidea, ramea ovato-lanceolata, 
omnia longe acuminata, quandoque pilo flexuoso terminata, 
dentato-serrata, substriata, flexuosa, siccitate precipue cris- 
pata, mollia, crassiuscula, areolis reticuli minutissimis, nervo 
pallido, spe subpellucido, satis lato, ante apicem evanescente 
instructa. Perichetialia ovato-lanceolata, attenuata, serrata, 
nervo obscuro. Seta uncialis, rubra, tuberculosa. Capsula 
ovata, cernua. Peristomium ext. dentibus fulvis, iné. mem- 
brana 16-dentata, laciniis bifidis, ut in Bartramia, ciliis duo- 
bus vel tribus his interpositis. 
PR a 
We have here a Hypnum in many points according with the 
Leskea laxifolia (Tas. XXX.), and in others with Hypnum 
abietinum ; but its leaves will be found to be truly recurved and 
often faleate, of a thick but soft texture, much acuminated at the 
points, and strongly serrated. The teeth of the inner peristome 
are remarkable in being bifid, and the fruitstalk is tuberculated, 
Fig. 1, plants nat. size. Fig. 2, 2, cauline leaves. Fig. 3, 
ramalleaf. Fig.4, perichetium, Fig. 5, leaf of ditto. Fig. 6, 
capsule. Fig. 7, teeth of outer peristome. Fig. 8, teeth of in- 
ner ditto.—magn, 
