Grimmiace^.] 6 [Grimmia. 



Leaves with hyaline points. 

 Hyaline point very short. 



Upper cells rotundate-quadrate. affinis. 



sinuose. ramulosa. 



Hyaline point elongated. 

 Leaves smooth. 



Hair point denticulate. heterosticha. 



eroso-serrate. hypnoides. 



Leaves papillose on both sides. canescens. 



Sect. I. SCHISTIDIUM [Brid.) Capsule smooth, wide-mouthed, on a 

 very short straight seta, immersed in the perichsetium ; Hd cupulate, 

 rostellate, falling with the columella attached; calyptra small, mitraeform, 

 lobed, scarce covering lid. 



I. GRIMMIA CONFERTA Funck. 



Autoicous ; dwarf, densely tufted. Leaves ovato-lanc, very densely 

 areolate, uppermost with short hair points, margin recurved below. 

 Caps, ovato-globose, leptodermous, fuscous ; teeth broadly lane, 

 orange-red, rimoso-cribrose. (T. XLVI, A.) 



SvN. — Grimmia pulvinata Swartz Summ. veg. scand. ?g p.p. (1814). Hartm. Skand. fl. 

 I — 4 edd. 



Grimmia conferta Funck Moostasch. 18, t. 12 (1821). Nees Hornsch, Bry. germ, ii, P. I. 

 115, t. ig, f. 5 (1827). HuEBEN. Muse. germ. i5g (1833). De Not. Syllab. 23g (1838). 

 Hartm. Skand. fl. 7 ed. 371 (1858). Schimp. Synops. igg (i860), 2 ed. 239. Zetterst. 

 Rev. Grimm, scand. 48(1861). Milde Bry. siles. 143 (i86g). Hobk. Syn. br. m. 77 

 (1873). JuRATz. Laubm. oester-ung. 151 (1882). Lesq. James Mosses N. Amer. 

 135 (1884). 



Grimmia apocarpa var. conferta Spreng. (L.) Syst. veg. 16 ed. iv, P. I, 153 (1827). C. 

 MuELL. Synops. i, 777 (i84g). Chalub. Grimm. Tatr. 23 (1882). HuSN. muse. gall. 

 124 (1886). BouLAY Muse. Fr. 3g2 (1884). 



Grimmia cribrosa Funck MSS. 



Grimmia glacialis Nees Hsch. op. c. 118, t. ig, f. 6. 



Grimmia fusca Nees Hsch. op. c. 120, t. ig, f. 7. 



Schistidium confertum Br. Sch. Bry. eur. fasc. 25 — 28, p. 7, t. 2 (1845). Aongst. in 

 Fries Summ. veg. scand. g3 (1846). Rabenh. Deutsch. kr. fl. ii, s. 3, 154 (1848). WiLS. 

 Bry. br. 149, t. 44 (1855). Berk. Handb. br. m. 244 (1863). De Not. Epil. Bri. ital. 

 713 (1869). 



Autoicous ; pulvinate or in dense small tufts, readily falling apart, 

 dull dark gi-een above, brown or blackish below, radiculose. Leaves 

 when dry erect, appressed, when wet suddenly recurved, then erecto- 

 patent, ovato- or oblongo-lanc, margin recurved below, nerve ending 

 before or at the point, or in the upper leaves excurrent as a short broad 

 hair, areolation very dense, upper cells minute, quadrat^, opake at apex, 

 the basal rectangular ; perich. bracts larger, broader, hair-pointed. 

 Calyptra mitraeform, lobed, covering lid only. Caps, immersed, 

 leptodermous, fuscous, ovato-subhemispheric, lid convex, acutely 

 apiculate, of same colour as capsule, annulus indistinct, teeth of per. 



