Grimmiace^.] 91 [Weissia. 



Autoicous ; in small yellow-brown tufts, stems erect, decumbent at 

 base, sparingly branched, fastigiate. Leaves densely imbricated, 

 appressed and slightly crisped when dry, erect when moist, lanceolate 

 acuminate, or from a narrowly ovate ventricose base, elongato-lanc, 

 plane or recurved at margin, carinate, nerve vanishing below apex; 

 cells at basal margin quadrate, hyaHne, the rest very narrow, upper 

 rounded and oval, incrassate. Capsule oboval, afterwards clavato- 

 pyriform, pale fuscous, leptodermous, much contracted at mouth and 

 vvith 8 short plaits below it, the rest scarcely sulcate, bands 8, short, of 

 quadrate cells strongly incrassate laterally, those of the sulci rectangu- 

 lar ; stomata numerous on the neck. Lid hemispherical, rostellate. 

 Calyptra straw-coloured, densely hairy. Teeth 8, bigeminate, whitish, 

 erect when dry, cilia 8, very short, or altogether obsolete. 



Hab. — Young trees in subalpine woods. Fr. 8 — 9. 



Hill of Finhaven (Drummond). Trossachs (Wilson 1832). Glen Falloch and Killin (Hunt 

 1865) ! ! Rowardennan (Dr. Wood 1875). Tore wood and Glena, Killarney (Carrington 

 1861). Danny, Sussex (Mitten). Clova (Fcrgtisson). 



Readily known by the very contracted mouth of the capsule, which 

 gives it a very peculiar appearance, also by the short bands and plaits 

 below it. 



3. WEISSIA DRUMMONDII {Hook. Gnv.) Lindb. 



Autoicous ; stem creeping, with erect branches. Leaves spreading, 

 linear-lane, appressed, and scarcely crisped when dry, nearly plane at 

 margin. Caps, oblongo-pyriform, on a long pedicel ; calyptra conico- 

 campanulate, hairy, teeth i6, geminate, pale. (T. LIX, A.) 



Syn. — Orthotrichnm Drmmnondii Hook. Grev. Edin. Journ. Sc. i, 120 (1824). Grev. Scott, 

 cr. fl. t. 115 (1824). Hook. Tavl. Muse. brit. 2 ed. 126, Suppl. t. 4 (1827). Hueben. 

 Muse. germ. 345 (1833). Hook. Br. fl. ii, 54 (1833). Br. Sch. Bry. eur. fase. 2—3, 

 p. 12, t. 3 (1837). Rabenh. Deutseh. kr. fl. ii, s. 3, 178 {1848). C. Muell. Synops. i, 

 712 (1849). WiLS. Bry. br. 189, t. 34 (1855). Hobk. Syn. br. m. 96 (1873). 



Ulota Drummondii Brid. Bry. univ. i, 299 (1826). Hammar Mon. Orth. suec. 29 (1852). 

 ScHiMP. Coroll. 41 (1855). Synops. 253 (i860), 2 ed. 300. Berk. Handb. br. m. 228 

 (1863). MiLDE Bry. siles. 165 (1869). Juratz. Laubm. oest.-ung. 193 (1884). Lesq. 

 James Moss. N. Amer. 161 (1884). Husn. Muse. gall. 150, t. 43 (1887). 



Orthotrichum subrepens Sommerf. Suppl. Fl. lapp. 191, t. i (1S26). 



Macromitriuni Drummondii Hampe in Flora 1837, P- 280. 



Weiszia Drummondii Lindb. Muse, scand. 28 (1879). 



Autoicous; in depressed pale yellowish-green tufts, stems longly 

 trailing, with erect branches and fasciculate shoots. Leaves erecto- 

 patent when moist, erect straight and scarcely crisped when dry, lineal- 

 lanceolate, obtuse, ovate and concave at base, plane or slightly recurved 

 at margin, nerve vanishing below apex ; basal cells linear in the middle, 



