364 Proceedings of the Roi/dl Irish Academy. 
Hab. Banks and hedges. Frequent in the south of Ireland, Tayl. in 
PL Hib. Rarer elsewhere through the country, though fre- 
quent in Co. Dublin. 
4. P. curvicollum (Hedw.). Sp. Muscor., p. 21. Weber, et Mohr, 
Bot. Tasch., p. 65, tab. 6. Engl. Bot , tab. 905. Muscol. Brit., 
p. 11. Bryol. Brit., p. 31, tab. 5. Rabenhor., Bryothec. 1 urop., 
m. 154. 
Hab. Banks and fields. Near Dublin. Taylor, in Flor. Hib. I have 
never collected this plant in Ireland, nor seen Irish specimens 
of it. 
25. Systegium. Schimp. 
Capsule wanting operculum, but with traces of a deciduous lid. 
5. crispum (Schimp.). Synops. Muscor., p. 30. Phascum crispum. 
(Hedw.). Turner Muse. Hib., p. 2. Bryol. Brit., p. 37, tab. 5. 
Rabenhor., Bryothec. Europ., JN'o. 30. Astomum crispum, Bryol. 
Europ., vol. I. Monogr., p. 2, tab. 12. 
Hab. Banks and fields. Near Belfast, Templeton. This species ap- 
pears to be extremely rare in Ireland. 
Sec. 2. WeifisiecB. ^'Capsule without peristome, 
26. Gymistostomum. Hedwig. 
Piagnosis of Species, 
a. Inflorescence dioicous. 
Capsule elliptic- oblong, narrow at the mouth; 
lid not rostrate, 1 . G. tenue. 
Capsule erect, oval; lid shortly rostrate, . 2. G. eupestee. 
Capsule broadly ovate ; lid rostrate and ad- 
herent to the columella, . . . 3. G. cuevieostrum, 
aa. Inflorescence monoicous. 
Capsule contracted at the mouth, elliptical, 
exerted; lid rostrate, . . . . 4. G. miceostomum. 
Capsule hardly contracted at the mouth; spo- 
rangium not adherent to the columella, 5. G. toetile. 
1, G, tenue (Schrad.). Coll. Plant. Crypt, No. 31. Hedw., Sp. Muse, 
