GRIMMIACE*.! 16 [Grimmia. 



minute, subpendulous, oval, very smooth, lid shortly rostrate, teeth 

 nearly entire. (T. XLVIII, A.) 



SYN. Bryum pulvinatum, Dicranum pulv inatum, Fissidens pulvinatus and Grimmia pulvinata 



of most Swedish authors. 



Campylopus pulvinatus var. (3 tennis WAHLENB. Fl. suec. ii, 748 (1826). 

 Dryptodon Schultzii (non BRID.) HARTM. Skand. fl. 4 ed. 373 (1843). 

 Grimmia incurva (non SCHWAEG.) BR. SCH. Bry. eur. fasc. 2528, Mon. 15, t. 8 (1845). 



HARTM. op. c. 5 ed. SCHIMP. Coroll. 47 ( + 0. Hartmam), 1855. 



Grimmia rugulosa LINDGR. MSS. et in Bot. not. 1845, p. 88. 



hophylla 

 HARTM. op. c. 6 9 edd. 



var. /3. septcntrionalis SCHIMP. Coroll. 47. Synops. 213. 



Grimmia Muehlenbeekii SCHIMP. Synops. 212 (1860), 2 ed. 255. LINDB. in Hedwigia vi, 

 116 (1867), et in Not. ur sails. Fl. Fn. fenn. foer. ix, 262 (1868). DE NOT. Epil. bri. 

 ital. 689 (1869). MILDE Bry. siles. 149 (1869). BRAITHW. in Journ. Bot. 1872, p. 197. 

 HOBK. Syn. br. m. 81 (1873). JURATZ. Laubm. oester.-ung. 161 (1882). BOULAY Muse. 

 Fr. 378 (1884). LESQ. JAMES Moss. N. Amer. 140 (1814). 



Qrimmia trichophylla var. Muehlenbeekii HUSN. Muse. gall. 135 (1887). 



Dioicous ; laxly pulvinate and vaguely caespitose, olive-green and 

 hoary above, soft. Stems \ i in. high, erect or procumbent, rooting at 

 base, repeatedly dichotomous. L. densely crowded, erect and incum- 

 bent when dry, patulous when moist and bending upwards from the 

 middle, from a longish ovate base, lanceolate, gradually narrowed 

 into a longer or shorter rough hair, concave below, carinate at apex, 

 the margin plane or slightly recurved at the middle, nerve strong, 

 channelled, very prominent above and with two ridges at back ; cells 

 above small, roundish-quadrate, obscure, in 2 strata, at base elongate 

 and somewhat sinuose, i 3 rows at margin short and hyaline. Caps, 

 on a short yellow subarcuate seta, very small, oval, leptodermous, 

 smooth, brownish-yellow, rugulose when dry, annulus very narow of 

 23 rows of cells; lid yellow-red with a short beak, teeth red, 

 lanceolate, nearly entire ; calyptra 4-lobed. 



HAB. Granite and sandstone rocks in mountains. Fr. 5 7. 



Wet rocks near Ballater (Fergnsson 1870). Stone in the stream, Kynance Cove, c. fr. 

 (Holmes 1882) ! 



This moss is very close to G. trichophylla, but that species is more 

 robust, the nerve thinner and less prominent at back, with a nearly smooth 

 hair, the cells internally scarce nodulose, the seta longer, capsule twice 

 larger, oblong, subopaque, plicate, firmer, lid rostrate ; from G. pulvinata it is 

 still more distinct by its dioicous infl., lax olivaceous tufts, taper-pointed 

 leaves and firmer subsinuose areolation. It will probably be detected in 

 many more localities. 



