Mosses of the Counties of Dublin and Wicklow. 231 
orbicularis, Br. et Sch. Bryol. Europ., vol. 3. Monogr., p. 13, t. 
240. Broyl. Brit., p. 154, t. 45. D. On the faces of walls in 
warm situations ; wall by the roadside leading to Dublin from 
Stillorgan. 
spiralis, Hook and Taylor. Muscol. Brit., p. 69. Dryoptodon 
spiralis, Bridel. Broyl. Univ. 1, p. 772. W. On rocks at 
Upper Lough Bray. (Barren.) 
torquata, Greville. Scot. Crypt. Fl, ft. 199. G. torta, Nees et 
Hornsch. Bryol. Brit., p. 156, ¢.32. W. On moist rocks near 
the summit of ‘Sugarloaf Mountain. 
trichophylla, Greville. Scot. Crypt. FL t. 100. Dicranum pul- 
vinatum, var. argenteum, Turn. Musc. Hib., p. 78. W. On 
rocks where the river is crossed going from Luggelaw to Lough 
Dan. D. On the mountains. Frequent. 
Schultzii, Bridel.- Bryol. Univ., 1, p. 199. Bryol. Brit., p. 157, t. 
45. Trichostomum patens, Var. piliferum. Muscol. Brit., p. 
105. D. Rocks at Luggelaw. D. Near the Scalp. 
patens, Br. et Sch. Bryol. Europ., vol. 3. Monogr., p. 18, t. 246. 
Trichostomum patens, Schwegr. Suppl, t. 37. W. Moist 
rocks at the Waterfall, Powerscourt. 
ovata, Web. et Mohr. Bryol. Brit., p. 160, t. 13. Muscol. Brit., 
ed. 2, p. 71. D. On rocks, Hill of Howth, and Killiney Hill. 
(Barren. ) 
Schistidium, Br. et Schimp. 
maritimum, Br. et Sch. Bryol. Hurop. Monogr., p. 10, t. 255. 
Bryol. Brit., p. 151,t.13. Grimmia maritima Turn. Muse. Hib., 
t. 3, p. 2. On rocks close to the sea, D. W. Common. 
Ptychomitrium, Br. et Schimp. 
polyphyllum, Br. et Schimp. Lryol. Europ., vol. 3. Monogr. p. 
4, t. 229. . Bryol. Brit., p. 173, t. 19. Trichostomum poly- 
pnyllum, Turn Muse. Hib., p. 35, t. 7. W. On rocks at Lough 
Bray. D. Near the Scalp, and at Killake. 
Racomitrium, Bruch et Schimp. 
canescens, Bridel.  Bryol. Univ., 208. Bryol. Brit., p. 170, t. 
19. Trichostomum canescens Hedw., St. Cr., 3, t. 3. Eng. Bot. 
t, 2534. W. Damp sandy ground, and among rocks fre- 
quent. D. In similar places frequent. 
lanuginosum, Bridel. Bryol. Univ., 1, p. 215. Bryol. Brit., p. 
169. t. 19. Trichostomum lanuginosum Hedw. Turner Muscol. 
Hib., p. 38. W. Onheathsand on the roofs of thatched houses 
in continuous layers. D. In similar situations. Common. 
In both places. 
heterostichum, Bridel. Bryol. Univ., 1, p. 214. Bryol. Brit., p. 
163, t. 19. Trichostomum heterostichum Hedw., Smith, Eng. 
Bot., t. 1347. W. Among rocks and on walls, Lough Bray 
and Seven Churches. . In similar places. Frequent. The 
varieties 6. alopecurum, y. gracilescens, 6. pumilum occasionally 
occur in both counties, 
R 2 
