ADDITIONS TO OUR MOSS FLORA. 195 
alpestris and mollis will yet be added to thelist. The great similarity of 
many species, especially in a barren state, renders their determination 
difficult, and none should be hastily passed over by the Alpine collector. 
GRIMMIA. 
Sect. I.—ScHisTIDIUM. 
Theca smooth, immersed in the perichzetium on a very short straight 
pedicel ; ‘ealyptra a small, scarce covering: the obtuli cleft at base into 
several lobes. 
l. G. conferta, Func 
Var, 8. incana. „G. pruinosa, Wils. MS. Plants more robust; peri- 
chætial leaves broader, with long hair points; capsule more elongate 
with thicker walls; teeth of peristome stronger, nearly entire, r 
Has. Trap rocks, King's Park, Edinburgh, 1847 (Dr. "Greville). 
'" Largo Law and Dunbamie Links, Fife, on decomposed tufa (Mr. Howie.) ; 
Arthur’s Seat (Mr 
Havi min Ps a vA of recien sent e Mr. Howie, ; i Mie 
find characters sufficient to separate this plant from G. confert 
thus seems to pass 2 ugh a series of forms, stitute to Sided n ibe 
. G. apocarpa (L.). "a. G. maritima (Turner). 
Sect. II.—GASTEROGRIMMIA. 
Plants very Iud pulvinate. Theca just emerging from the peri- 
chzetium, ventricose on one side, on a short curved pedicel. Calyptra five- 
lobed or cue XU 
4. G.anodon, B. and S., Bryol. Eur. ii. t. 226. — Monoicous, in small 
oary, fragile cushioned tufts. Lower leaves minute, laxly imbricated, 
muticous ; upper muc Ee broadly oblong-lanceolate, concave, with 
i e point, and exte nded into a lon ngish serra 
hair; cells at base Sina elongate shore incrassate, quadrate, opaque 
toward apex. Capsule immersed, oval, ventricose at base on one side, 
thin, tawny, gymnostomous, when old "with the mouth very wide; 
oo simple; lid plano-convex, umbonate, yellow 
Walls and dry calcareous rocks. Arthur's Seat, Edinburgh, 
1869 (ir Bell). 
5. G. crinita, Bridel, Sp. Musc. part i. p. 95 (1806). Bry. Eur. iii. 
ms 
z 
(e: 
B 
s 
MES 
z 
E 
ud 
e] 
5 
noicous ; in low diffuse flat tufts, silky on the surface, with long 
white hair, which form a pencil-like tip to the branches. Stem simple, 
or but slightly divided. Leaves imbricated, erecto-appressed, lowest 
lanceolate, muticous, upper obovate-oblong channelled, with a broadly 
Sinpuanone s apex continued into a hair as long as the lamina, which in 
his apex; margin erect or plane; cells at base elongated, diaphanous, 
above finely chlorophyllose, oblong or rounded, large, incrassate; capsule 
on a weak sigmoid pedicel, subcernuous, subventricose ovate, lightly 
striate, brown, furrowed when pad ; operculum convex 
conical point; annulus broad, compound ; calyptra dimidiate, bilobed ; 
teeth of peristome red, erect, bi-trifid to the middle. 
o 2 
