80 DALTDNiA. 



nerve reaching to the point ; fruitstalks very long ; capsule | 

 cylindrical. (TAB. XXII.) 



" Neckera viticulosa. Hedw. Sp. Muse. t. 48. /. 4-8. Turn. Muse. Hib. \ 

 p. 103. Moug. et NestL n. 237. Hypnum viticulosum. Linn. Sp. PL \ 

 Engl. Bot. t. 265. Dill Muse, t. 39. /. 43. 



HAB. Upon trees and rocks ; less frequently on the 

 ground. 



Stems creeping ; branches erect, numerous* Leaves im- 

 bricated on all sides of the stems, erecto-patent, somewhat 

 Undulate, of a thick and soft texture, of a pale green co- 

 lour, very yellow when old. Perichaetium small ; its leaves 

 narrower and more concave than the rest ; nerve strong. 

 Fruitstalks an inch or more in length. Capsule cylindri- 

 cal -, lid rostrate. 



27. DALTONIA. 



GEN. CHAR. Fruitstalks lateral ; Peristome double, 

 consisting of 16 teeth, with a ciliary process arising 

 from the side of each; Calt/vtramitritonn. (TAB. 



m.) 



The mitriform calyptra separates this new genus from the pre- 

 ceding, with which the peristome well accords ; so that they bear 

 the same relation to each other as Hookeria does to Hypnum. 

 With much pleasure we here offer our tribute of affectionate re- 

 gard to our valued friend, the Rev. James Dalton, by whose mus- 

 cological communications we have frequently profited during the 

 collection of the materials for the present volume. 



D. splachnoldes ; leaves oblongo- lanceolate ; fruitstalks long; 

 calyptra fimbriated at the base. (TAB. XXII.) 



Neckera splachnoides. Engl. Bot. t. 2564. (not of Schwaegr.} 

 HAB. Secawn mountain, near Dublin. Dr. Taylor. 

 This curious moss has hitherto only been found in the 

 station above mentioned, by the side of a streamlet, where 

 it grows, sparingly, in small pale green tufts. The stems 

 are scarcely more than a quarter of an inch in height, slightly 

 branched, branches erect. Leaves rather loosely imbri- 



