450 Proceedings of the Royal Irish Academy. 
Hab. Rocks, trees, walls, and on the gToiiud. This is probably 
the most abundant and ubiquitous moss in Ireland. It varies 
much in appearance according to the nature of the locality 
where it grows, while a few forms which are rather constant 
in their habit are indicated by Wilson and other authors. Variety 
7. minus. Variety fliforme are very common on trunks of 
of trees. Variety e. lacimosum grows near Killarney, and 
on Connor Hill, Kerry, according to Wilson in Eryol. Brit. 
61. IT. pohjgamiim (Br. etSchimp.). AVils., Bryol.Brit., p. 364, tab. 56. 
Eabenhor., Bryothec. Europ., J^To. 755. H. polymorphum, Hook, 
and Tayl. in Herb. Greville. H. nodiflorum, Wils. Amblystegium 
polygamum, Bryol. Europ., vol. vi. Monogr., p. 16, tab. 572. 
Hab. Damp places, among sand-hills near the sea shore. Portmar- 
nock and Malahide sands, Dublin ; sands near Belmullet, 
and near Killala, Mayo. Variety /3. stagnatum, (H. stagnatum, 
Wils., MS.), in marshy ground near Arklow, and other places 
on the coast of Wicklow. 
62. R. stellatum (Dill.). Muse. tab. 39, fig. 5. Bryol. Europ., 
vol. VI. Monogr., p. 14, tab. 584. Schimp., Synops. Muscor., 
p. 603. Bryol. Brit, p. 366, tab. 26. Smith, Engl. Bot., 
tab. 1302. Muscol. Brit., p. 180. 
Hab. Bogs and marshes. Frequent in most parts of Ireland. A 
large variety with broader and less acuminate leaves occurs on 
bogs near the Upper Lake of Killarney. 
63. H. chrynophyllum (Bridel). Mant. Muse, p. 175. Bryol. 
Brit., p. 366, tab. 26. Rabenhor., Bryothec. Europ., jS"©. 
791. 
Hab. Sand-hills near the sea, and on damp soils resting on lime- 
stone inland. Malahide and Portrane, Dublin ; also on the 
Wicklow Coast. ]N"ear Menlough, Galway, but seldom seen in 
fruit. 
64. H. polymorphum (Hedw.). Sp. Muse, tab. 66. Bryol. Brit., 
p. 307, tab. 56. H. squarrulosum, Smith, Engl. Bot., tab. 
1709. H. Sommerfeltii, De ]N"otr., Briol. Ital., p. 173. 
Hab. Damp banks and among rocks in limestone districts. I^Tear 
Galway, and towards Oughterard, also near Cong. I have not 
seen any Irish specimens of this moss with fruit. 
65. H. elodes (Spruce). London Journal of Botany, vol. iv., April, 
1845. Bryol. Brit., p. 362, tab. 56. H. polymorphum, Flor. 
Hib., p. 44. 
