GRIMMIACE^E.] 31 '.jGrimmia. 



Dioicous ; in lax pulvinate tufts, fuscous or black below, olivaceous- 

 green and shortly canescent at apex. Stems slender, elongate, dicho- 

 tomous, sparingly branched, f 2 in. high, naked and decumbent at 

 base. Leaves from an erect oblong base, divergent, rather rigid, 

 elongate-lanceolate, lightly recurved at margin, subcomplicate-carinate, 

 muticous, the wings asymmetric, nerve stout excurrent, uppermost with 

 short hyaline points ; basal cells linear-rectangular, dilated towards 

 margin, upper quadrate, sinuose, apical minute, bistratose, I 2 rows 

 at margin 3 4 stratose. Perich. bracts oblongo-lanceolate-acuminate, 

 with short hair points. Caps, exserted on a short straight yellowish 

 seta, small ovate, pale fuscescent, smooth, lid conic, obtuse, annulus of 

 2 3 rows of small cells ; calyptra cucullate, lobate, teeth yellow, 

 broadish, cleft or perforated only at apex. 

 HAB. Wet alpine rocks ; rare and sterile. 



Glen Callater and Glen Phee, Clova (Fergusson 1868) ! 



Most of our native specimens are in short dense tufts, largely impreg- 

 nated with earth and resembling Andrecea petrophila in colour. 



24. GBJMMIA MICROCARPA (Gmel.) Lindb. 



Dioicous; in lax olivaceous tufts. Leaves crowded, patent, 

 ovato-acuminate carinate, with very short serrate hair points, the 

 margins recurved. Caps, minute, elliptic, exserted on a straight seta, 

 cal. mitrseform, lid conic, acutely rostrate. (T. XLVIII, B.) 



SYN.- Bryum hypnoides alpinum, setis et capsulis exiguis DILL. Hist. muse. 370, t. 47, f. 29 

 (1741) et Herb. 



Bryum hypnoides Var. 8. microcarpiim and c. obtusiim RETZ. Fl. scand. prod, ii, 214 



(I779)' 

 Bryum mlcrocarpon GMEL. (L.) Syst. nat. 13 ed. ii, P. 2, 1332 (1791). HOFFM. Deutsch. 



fl. ii, 42 (1796)- 

 Vicranunt mlcrocarpon SCHRAD. Samm. kr. gew. i, ii (1796). ROTH Tent. fl. germ, iii, 



P. I, 177 (1800). 



Trichostomum obtusum BRID. Muse. rec. II, P. i, 125 (1798), Sp. muse. I, 237 (1806). 

 Trichostomum microcarpon BRID. Muse. rec. II, P. I, 127 ; et Sp. muse. I, 237, max. p. 



HEDW. Sp. muse. 112, t. 23, f. 812 (1801). TURN. Muse. hib. 40 (1804). SMITH Fl. 



brit. 1243 (1804) ; Eng. Bot. t. 1440. DE CAND. (LAM.) Fl. franc. 3 ed. ii, 469 p.p. 



(1805). WEB. MOHR Bot. Tasch. 113 (1807). SCHKUHR Deutsch. kr. gew. P. II, 70, 



t. 31 (1810). HOOK. TAYL. Muse. br. 61, t. 19 (1818). HOOK. Fl. scot. P. 2, 134 



(1821), Br. fl. ii, 33 (1833). W. ARN. Mem. soc. Linn. Par. ii ,270 (1825). DUBY Bot. 



gall, ii, 573 (1830). WALLR. Fl. cr. germ, i, 176 (1831). W. ARN. HOOK, in HOOK. J. 



Bot. i, 95 (1834). TAYL. in MACK. Fl. hib. 2, p. 20 excl. var. (3. (1836). 

 Trichostomum heterostichum SCHLEICH. PI. cr. helv. i cent. n. 13 (1804), Cat. pi. helv. 



2 ed. 31 (1807) ? 



T. patens var. /3. SCHWAEG. Suppl. i, P. I, 152, t. 37, f. la, 7, 8 ? 

 Rhacomitrium obtusum BRID. Mant. 79 (1819), Bry. univ. i, 213 (1826). 

 Rhac. microcarpon BRID. op. c. max. parte. 

 Trichostomum sudeticnm FUNCK Moost. 26, t. 18 (1821), Cr. gew. ficht. n. 570 (1822). 



