SUPPLEMENT.] 236 



SYN.-Grimmia Ungeri JURATZ. in UNO. and KOTSCHY Die insel. Cypern 169 (1865). Laubm. 

 Oester.-Ung. 167 (1882). HOBK. Synops. 83 (1873). SCHIMP. Synops. 2 ed. 853 (1876). 

 LIMPR. in RABENH. D. kr. fl. Laubm. i, 781 (1889). 



Grimtma intermedia FERG. in lit. BRAITHW. in Journ. Bot. 1872, p. 198. 



Grimmia alpestris (non SCHLEICHER) CHALUBINSKI Grimm. Tatrenses 65, p.p. t. 9, f. 2427 

 (1882). Dix. JAMES Stud. Handb. 146 (1896). 



Autoicous ; in dense cushions | in. high, dark olivaceous-green above, 

 black at base. Leaves erecto-appressed when dry, erecto-patent when 

 moist ; accrescent upward, lowest from a longish ovate base, lanceolate, 

 muticous, upper lanceolate, gradually; acuminate, passing into a smooth 

 hair f length of lamina, margin plane, nerve prominent at back ; cells 

 bistratose in upper part, opaque and roundish-quadrate, shortly rectangular 

 at base, with 24 rows at margin quadrate and hyaline. Perich. bracts 

 broader, elongated ; seta short, yellowish and thick ; Capsule erect, scarcely 

 elevated above the hair-points, oval, smooth, pachydermous, brown ; annulus 

 not distinct, calyptra cucullate, lid conic, obtusely rostellate, reddish, teeth 

 rufous, deeply inserted, papillose, entire or slightly cleft at apex. 

 HAB. On earth in crevices of rocks, very rare. Fr. 6. 



Near Ballater, Aberdeenshire (Rev.J. Fergusson 1870) ! ! 



This is generally admitted to be a species distinct from alpestris. Chalu- 

 binski's specimens were a mixture of the two. 



GRIMMIA HOMODICTYA Dixon. 



Dioicous? resembling G. calyptrata HOOK., growing in grey hoary 

 tufts \ in. high. Leaves crowded, erect and straight when dry, ovato- 

 lanceolate, gradually tapering to a rather broad point, and terminating in 

 a broad spinulose hair ; margins recurved, cells rectangular. (T. CXXVI, G.) 



SYN. Grimmia homodictyon DIXON in Rev. bryol. 1901, p. 12. 



Dioicous ? resembling the American G. calyptrata HOOK., growing in 

 low, grey, hairy tufts ; stems readily falling asunder, \ in. high, with 23 

 branches, erect, straight, rather rigid. Leaves crowded, erecto-patent when 

 moist, erect and straight when dry, ovato-lanceolate, gradually acuminate 

 and terminating in a strongly spinulose hyaline hair, short in the lower 

 leaves, longer in the upper, carinate concave, one or both margins recurved, 

 with two layers of cells, one or two rows in upper part incrassate. Nerve 

 yellowish, well-defined, convex and prominent at back. Cells shortly 

 rectangular, more or less sinuose in the middle, smaller at apex, one to 

 three rows at base narrow and elongated, marginal cells in 2-3 rows, 

 quadrate or transversely elongated. 



H AB .-On a block of limestone near Inchnadamph, Sutherland (Nicholson, Salmon, and Dixon 1899) . 



