Vlota.] BRYACE^. 161 



cious, the male geramiforra. Calyptra yellow, deeply split at 

 base, obtusely plicate, generally covered with long flexuous 

 yellowish hairs. Cajjsule exserted, narrowed into a long 

 collum, twisted to the left when dry, — Weissia, Ehrh. 



* Primary stetns creeping : leaves scarcely crispate when dry. 



1. U. Drummondii, Brid. Tufts yellowish green: leaves 

 linear-lanceolate from an ovate base, the comal longer : male 

 flowers axillary : calypti-a somewhat hairy : capsule exserted on 

 a long pedicel, ovate-clavate or fusiform, obscurely 8-sulcate, 

 light brown, distinctly 8-costate to the base when old ; lid coni- 

 cal-acuminate, whitish at the apex, yellow at base ; teeth 16, 

 whitish. — Biyol. Univ. i. 299. Orthotrichmn Drummondii^ 

 Grev. Scot. Crypt. Fl. t. 115; Bryol. Eur. t. 210. Weissia 

 Drummondii^ Lindb. Muse. Scand. 28. 



Hab. Canada (Dnimmond). 



We have been unable to find this species in any of the sets of Drum- 

 mond's mosses, though Schimper mentions it as sent from Canada by 

 Druramond. Like the following it is distinct from all the other species 

 in its long creeping stems, and from U. Ludwigii in its more robust 

 habit, the form of the capside, etc. 



2. U. Lud"wigii, Brid. Stems somewhat creeping or de- 

 cumbent : leaves linear-lanceolate, plane or slightly undulate on 

 the borders, open when moist, slightly twisted when dry : cap- 

 sule claA'ate-pyriform, thin, yellowish brown, abruj^tly contracted 

 and plicate at the orifice when deoperculate and dry; teeth 

 erect Avhen dry, close, whitish, with irregular fugacious frag- 

 ments of an internal membrane as cilia. — Muse. Recent. Suppl. 

 iv. 112 ; Schimp. Syn. 254. Orthotrichum Lt(dvngii, Brid. 1. c. 

 ii. 6 ; Schwaegr. Suppl. i. 2. 2-4, t. 51 ; Bryol. Eur. t. 225 ; Sulliv. 

 Mosses of U. States, 34. Weissia coarctata, Lindb. 1. c. 



IIab. Small trunks and branches of trees; common in mountainous 

 regions. 



* * Xeaves cirrate-cri spate when dry. 



3. U. curvifolia, Brid. 1. c. Tufts loose, yellowish brown 

 or black ; stems erect from a decumbent base : leaves linear- 

 lanceolate, acutely carinate, plane on the borders, densely papil- 

 lose: calyptra deeply lobate, pale: capsule small, shorter- 

 pedicellate, ovate, striate, costate to the base when dry ; teeth 

 bigeminate, separated to the middle, lacunose at the apex ; ciUa 



