COCCOCHLORIS. 317 



fronds adhere closely to paper, present considerable gloss, 

 and retain the freshness and depth of their colouring when 

 dried. 



" I have much pleasure in ascribing It to Its acute dis- 

 coverer Mr. D. Moore, curator of the Royal Dublin Society's 

 Botanic Garden, who has added so many Interesting plants 

 to the Irish Flora." — Harv. 



Having only had the opportunity of examining dried spe- 

 cimens, I am not able to give the measurements of the 

 globules and vesicles ; I have, however, been able to ascertain 

 sufficient of the species to render It quite certain that the 

 reference to the genvis Coccochloris Is correct. The same re- 

 mark applies to the other species which I have placed in 

 that genus. 



6. Coccochloris rivularis Hass. 



Plate LXXVIII. Figs. 6 a. b. 



Char. Fronds liemispherical, tuberculoses often confluent^ 

 bright green when recent, turning to broivn in drying. 

 Globules small, globose, scattered. 



Pahnella 7'ivularis Carm., MS. P. rivularis Harv., In Hook. 



Brit. Flor. p. 397. ; Harv. in Manual, p. 177. 

 Hab. In a mountain streamlet, attached to rocks and 



stones, Aj^pln: Captain Carmichael. 



" Fronds one fourth or half an Inch In diameter, hemi- 

 spherical, tubercular, firmly adhering, sometimes coherlno- 

 Into a broad crust. Gramdes small, globular, scattered. 

 Colour vivid green. It bears a striking resemblance to Chce- 

 tophora tuberculosa.'^ — Carm. MSS. In drying it shi'iuks 

 considerably, and fides to dirty brown.* 



* In a specimen -which I have lately examined of this species, I dis- 

 tinctly perceived divisions in the mucous substance ; a certain number, 

 usually two, of the granules, as in the genus Ilcematococais, being invested 

 with a separate portion of the general substance. It is probable that this 

 structure belongs to all the species of the genus, and possibly of Ulva also. 



