Grimmiace^.] 21 {Grimmia. 



usually subfalcato-secund, ending in a very short smoothish or bluntly 

 toothed hair-point, carinato-concave at base with the margin more or 

 less reflexed, towards apex acutely carinate with the margin curved 

 outward and 3 — 3 stratose ; nerve smaller at base, irregularly 2, — 4 ridged 

 at back, running up to the apiculus, bistratose above, 5 — ^stratose towards 

 base, in the young terminal leaves often tipped with globose propagula 

 (i — 15), each composed of numerous chlorophyllose cells; cells all 

 incrassate, unistratose, with i — 2 marginal rows bistratose, above small, 

 roundish and opake, below roundish quadrate and sinuose, at base 

 elongate near the nerve, roundish-quadrate and hyaline in several rows 

 at margin. Perich. bracts shorter, from a longish concave base, 

 lanceolate, pointed, with laxer more transparent cells ; caps, on acurved, 

 but finally erect seta, longish oval-oblong, smooth, pale brown with a 

 red mouth, annulus of 3 — 4 rows of small cells, calyptra mitrseform, 

 lobed ; teeth lanceolate entire or slightly perforated, orange-red, smooth 

 at base ; lid conical, subulate, slightly oblique. 



Male plants like the female, infl. terminal, inner bracts oval, muticous, 

 antheridia numerous, orange, without paraphyses. 



Hab. — Granite rocks and stones in mountain districts. 



Dolgelly (Wilson 1840). Cardross and Blairgowrie (Siirton). Near Conway and Cwm 

 Bychan (Wilson i860) ! ! Rannoch, Perthshire (Dr. B. White 1867). Bridge of Lochay 

 Hunt 1868) ! ! Blackhall, Banchory (Sim. i86g). Aber and Llanberis (Hunt 1871). 

 S. side of Loch Tay (Howse 1872) ! ! Ben Ledi (Stirion 1864) ! By R. Ken, New 

 Galloway (McAndrew 1885) ! Barmouth (Whitehead 1879) I ! Wall between Cong 

 and Moytura, Galway (Moore 1872). Rydal, Thirlmere, &c., Westmoreland and 

 Cumberland (Binstead 1886) ! ! Honister Crag (Boswell 1858). 



This fine moss has only twice been found with fruit, first by Hazslinszky 

 on M. Czerbo in Hungary, and recently by Philibert in Corsica ; it 

 comes nearest to G. microcarpa, but it is at once distinguished by the 

 areolation, as it is also from G. trichophylla, as well as by the extremely short 

 hair points. 



15. GRIMMIA SUBSaUARROSA Wih. 



Dioicous ; laxly tufted, fuscous and dull green. Leaves patent and 



subsquarrose when moist, ovato-lanceolate, with a denticulate hair-point, 



margin recurved, basal cells quadrate hyaline, elongate at margin, upper 



minute. (T. XLIX, A.) 



Syn. — Grimmia subsquarrosa WiLS. MSS. B. White in Trans. Bot. soc. Edin. ix, 142 (i858). 

 Braithw. in Journ. Bot. 1872, p. ig6, t. 124, f. i. Hobk. Syn. br. m. 80 (1873). Schimp. 

 Synops. 2 ed. 270 (1876). 



Dioicous ; in small lax cushioned tufts, fuscous-green above, black 



at base. Stems J — | in. high, erect, dense-leaved, dichotomous, the 



branches short, turgid, a little curved. Leaves erect and appressed 



when dry, patent, subarcuato-incurved and subsquarrose when moist. 



