382 BRYACE^. [Hypnum. 



colored and hyaline, those of the angles thick, long, subquad- 

 rate, dark-orange ; perichfetium as in the preceding : capsule 

 long, cernuons, erect at base or horizontally arched, cylindrical- 

 oblong, constricted under the orifice and irregularly sulcate 

 when dry ; operculum convex, short-apiculate ; teeth dark 

 orange ; segments narrowly cleft between the articulations ; 

 cilia 2 or 3, as long as the segments, stout, subappendiculate 

 and punctulate ; annulus large, compound, persistent. — Bryol. 

 Eur. Suppl. ITi/pnum, t. 2, 3. AmUystegium Sendtneri, Lindb. 



Var. Wilsoni, Schimp. 1. c. Tufts deep, soft or irregularly 

 drooping, dirty yellow or fuscous ; j^h'^nts very long (a foot or 

 more) ; stems slender, simple or scarcely divided, distantly ram- 

 ulose : leaves larger, filiform-acuminate, more or less arcuate or 

 hooked ; basilar angles shorter and quadrate ; basilar areolation 

 shorter. — Aniblystegiuni Wilsoni, Lindb. 



Hab. The variety only has been found in North America, in water, at 

 Budd's Lake, New Jersey (T. P. James), as determined by Renault. 



135. H. uncinatum, Hedw. Monoecious: tufts pale or 

 yellowish green, erect or drooping; stems solid, distantly j^in- 

 nately ramulose ; branchlets attenuate-falcate at the apex : 

 leaves long, falcate-secund or hooked, lanceolate-subulate, j)licate, 

 minutely serrulate above, thinly costate ; areolation very nar- 

 row, more enlarged at base, broader and rectangular at the 

 slightly excavate angles ; perichretium very long, the outer 

 leaves recurved from the middle, costate, the inner very long 

 and long filiform-acuminate, sharply serrate at the apex, cos- 

 tate and plicate, soft : capsule cernuous, incurved or suberect, 

 cylindrical, solid, constricted under the orifice when dry, brown- 

 orange, darker when old; operculum orange, highly convex, 

 conical-acuminate ; teeth orange at the base, yellowish above ; 

 segments slightly cleft, and the two slender cilia as long as the 

 teeth; annulus broad, of three rows of cells. — Muse. Frond. 

 iv. 65, t. 45 ; Bryol. Eur. t. 600. Stereodon rmcinatus, Brid. 



Var. abbreviatum, Bruch & Schimp. 1. c. Stems shorter : 

 leaves narrower, incurved, falcate : capsule shorter-pedicellate, 

 nearly erect, brown. 



Var. plumosum, Schimp. Drooping, widely creeping, 

 soft, pinnately ramulose : leaves hooked, with a long flexuous 

 loricate or capillary distantly serrate point: capsule narrow, 

 cylindrical, incurved. — Syn. 612. 



