Grimmiace^.] 92 [Weissia. 



quadrato-iectang. at margin, upper quadrato-rotundate, papillose. 

 Capsule obovate-clavate, contracted at mouth, pale brown, obliquely 

 8-striate to base, fusiform when old, cells of stria rectangular, 

 leptodermous ; lid pale with a subulate beak; teeth 16, geminate, 

 whitish, recurving when dry ; rudimentary cilia sometimes present. 

 Calyptra very sparingly hairy. 



Hab.— Trunks of alder, birch and mountain ash in subalpine districts. 



Fr. 7—8. 



Frequent in Forfar and Perthshire, Braemar, Loch Maree {Hunt 1866) ! ! High Force 

 Teesdale {Spnicc 1842). Cronkley Fell (Stiibler 1866) ! ! Powerscourt, Killarney and 

 Luggielaw {Moore). Alford, Aberdeen (Mrs. Farquharson (1881) ! ! 



This pretty species, by its creeping stems, resembles in habit the great 

 exotic genus Macromitrium ; the leaves are very slightly curled, and the 

 endostome is wanting. 



4. WEISSIA BRUCHII (Homsch.) Lindb. 



Autoicous ; pulvinate, branched. Leaves linear-lanceolate, crisped 

 when dry. Capsule on a long pedicel, oblong-pyriform, with 8 broad 

 stria, contracted at mouth when dry; calyptra very hairy. 

 (T. LIX, B.) 



Syn-.— C7of<i Bnichii Hornsch. M=s. Brid. Bry. un. i, 794 ('1827). Schimp. Synops. 256 (i860), 

 2 ed. 303. Berk. Handb. br. m. 229 (1863). Milde Bry. siles. 167 (i86g). Juratz. 

 Laubm. oest.-ung. 195 (1S82). Lesq. James Moss. N. Amer. 162 (1884). Hobk. Syn. 

 br. m. 2 ed. 131 (1884). HusN. Muse. gall. 151, t. 43 ('1887). 

 Orthotriclium coarctatum (non P.B.) Huebex. Muse. germ. p.p. 349 (1883). Br. Sch. 

 Bry. eur. fasc. 2 ^3, p. 21, t. 11, excl. syn. (1837). Rabenh. Deutsch. kr. fl. ii, s. 3, 

 183 (1848). C. Muell. Synops. i, 713 (1849). 



Orthotriclium dilatatimi Br. Sch. Bry. eur. fasc, 2 — 3, p. 22, t. 11 (1837). 



Ulota coarctata Hammar Mon. Orth. suec. 25, p.p. (1852). 



Orthotrichum Bnichii WiLS. Bry. br. 1S8, t. 45 (1855). Husx. Mouss. N. Quest 104 (1873). 

 Hobk. syn. Br. m. 96 (1873). 



U lotrichiim coarctatum Schimp. Consp. Bry. eur. 



Weissia Bruchii Lindb. Muse, scand. 28 (1879). 



Autoicous; in soft pulvinate tufts, bright yellow-green above, 

 ferruginous at base, the stems erect or ascending from a decumbent 

 naked base, repeatedly dichotomous. Leaves from an ovate concave 

 base, long, linear-lanceolate, subflexuose, twisted and contorted when 

 dry, more gradually pointed than in IF. ulophylla and with a paler nerve, 

 margin plane above, recurved below ; cells at basal wings quadrate, 

 hyaline, with incrassate transverse walls, those next the nerve larger, 

 rectangular, in straight rows, the upper with smaller papillse ; perich. 

 bracts longer, erect, sulcata at base. Calyptra densely hairy. Capsule 



