Cenomyce.] LICHENES. 81 



greyish white powder constituting the buds, are of a brownish flesh- 

 colour, longitudinally striated, often widely split, and usually perforated 

 at the axillae of the branches. The apothecia are convex, dimpled on 

 the centre. 



7. C. cervicornis, ACH. Thallus erect, fastigiate, the scales 

 branched into lineari-oblong, somewhat crenate, laciniee ; po- 

 detia from the disk, dilated and branched above, their margins 

 at length proliferous ; apothecia minute, marginal, sessile. 

 Ach. Lick. Un.p. 531. Eng. Bot. t. 2574. 



On rocks ; near Dunkerron ; common. This species grows re- 

 markably tufted, and, contrary to what is usual in the genus, the 

 organs of vegetation bear a great proportion to those of reproduction 

 as to size. The apothecia tinge the portions of the thallus that sup- 

 port them of a reddish-brown colour, but they are themselves almost 

 black ; they have occasionally an elevated margin to the disk, not obli- 

 terated by the application of moisture. On the cups a glaucous grey 

 powder, constituting the buds, expands into greyish round scales, 

 eventually becoming thallus. 



8. C. coccifera, ACH. Scales of the thallus minute, imbri- 

 cated ; podetia cylindraceo-obconical, wide above, mealy, some- 

 times proliferous ; apothecia conglomerated or confluent. Acli. 

 L. Un. p. 537, and C. pyxidata. p. 534. Eng. Bot, t. 2051 and 

 t 1393. 



On heaths common, Mr. Templeton. Acharius himself, in page 

 534, allows that his C. pyxidata differs from his own C. coccifera 

 only by the colour of the podetia and of the apothecia. Mr. Templeton 

 found the dark apothecia upon sulphur coloured podetia in specimens 

 collected near Belfast. I have observed, apparently on the same tuft, 

 in our Kerry mountains, the apothecia to vary from bright scarlet to 

 dark purplish-brown. I am not aware how the two species, as given 

 by authors, are to be kept distinct. 



9. C. fimbriatOt ACH. Thallus of soft foliaceous scales ; 

 podetia from a narrow base dilated into a wide, campanulate, 

 impervious cup, with minute acute teeth, sterile, or with minute 

 dark brown apothecia. Ach. Syn. p. 254. JEng. Bot. 2438. 



On the sides of ditches ; common. Mr. Templeton. 



10. C. radiata, ACH. Thallus with minute, imbricated 

 scales ; podetia elongato-cylindraceous, taper, expanding above 

 into cups, which are irregularly radiated into simple (sometimes 

 subdivided) acuminate shoots, or into very short processes, 

 bearing minute rotundate brownish apothecia. Ach. Lich. Un. 

 p. 547. Eng. Bot. t. 1835. 



On Aghalee bog, near Lough Neagh, Mr. Templeton. Mr. Tem- 

 pleton alone has observed this species in Ireland. 



11. C. cornuta, ACH. Thallus with laciniated and crenate 

 scales ; podetia, the barren subulate, the fertile cylindraceous, 

 narrower above, tipped with minute scarlet or brownish apo- 

 thecia. Ach. L. Un. p. 545. Eng. Bot. t. 1836. 



K 



