./H
lab. X7X1. HYPNUM CRISPIFOLIUM.
Hypnum calile repente pinnatim ramoso, foliis flaccidis
falcato-secundis, caulinis deltoideis, rameis ovato-lanceolatis,
omnibus serratis flexuosis longe acuminatis,
seta scabra, capsula ovata cernua. (Tab. XXXI.)
H a b . In plaga occidentali Americæ Borealis. D . Menzies, 1791,
Cailles 4-5-uneiales, repentes, vage divisi, pinnatim ramosi, ramis
sæpe 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 præcipue cris-
pata, mollia, crassiuscula, areolis reticuli minutissimis, nervo
pallido, sæpe subpellucido, satis lato, ante apicem evanescente
instructa. Perichcetialia ovato-lanceolata, attenuata, serrata,
nervo obscuro. Seta uncialis, rubra, tuberculosa. Capsula
ovata, cernua. Peristomium ext. dentibus fulvis, int. membrana
16-dentata, laciniis bifidis, ut in Bartramia, ciliis duo-
bus vel tribus his interpositis.
VVe have here a Hypnum in many points according with the
Leskea laxifolia (T a b . XXX.), and in others with Hypnum
a lie tin um ; but its leaves will be found to be truly recurved and
often falcate, of a thick but soft texture, much acuminated at the
points, and strongly serrated. The teeth of the inner peristome
ere remarkable in being bifid, and the fruitstalk is tuberculated.
Fig. 1, plants nat. size. Fig. 2, 2, cauline leaves. Fig. 3,
ramal leaf. Fig. 4, perichsstium. Fig. 5, leaf of ditto. Fig. 6,
capsule. Fig. 7, teeth of outer peristome. Fig. S, teeth of inner
ditto,—magn.