COLLECTED AT THE CAPE OF GOOD HOPE. 171 



Physcia subpicta, Nyl. Comparabilis videtur cum P. picta vel 

 cegialita (Ach.), sed minor, thallo glauco-albido opaco laeviore, lobulis 

 ambitu planis brevioribus. Apothecia non visa. 



Tribe G-yrophorei. 



Umbilicarta pustulata, Hffm. 



On rocks towards the summit ; apparently not uncommon. 



The specimens gathered are very small, though fertile, and may 

 perhaps be regarded as constituting a distinct form — f. minor, 

 " thallus and apothecia very small." 



U. rubiginosa, Pers. 



On rocks near the summit ; fertile and apparently common. 



Tribe Lecanorei. 



Pannaria rubiginosa (Thunb.). 



On the trunks of trees ; fertile, also saxicole and sterile. 



P. lhucosticta, tot. isidiopsis, Nyl. Totus fere thallus isidio sub- 

 ca3sio tectus. Spore longit. 0*012-*018 millim., crassit. 0*008-0*01 1 



millim. 



On the bark of trees (as it would appear); only a single fragment seen. 



Lecanora murorum (Hffm.). 



On rocks; apparently common and fertile. The specimens scarcely 

 differ from the European lichen, except that the thallus is subgranu- 

 lated in the centre — a condition, however, which we have observed on 

 maritime rocks in Scotland. The spores areOOlO-0'014 millim. long, 

 0005-0-007 millim. thick. 



L. CINNABARINA, Ach. 



On rocks (quartzose) ; apparently common, but rarely fertile. 



To this belongs Callopisma capense, Mass. Lich. Cap. p. 59, 

 t. iii. f. 12-20. "With reference to this species Nylander says in 

 Hit., " Observatur thallum ssepe esse fere placodioi ileum et in typo 

 Swartziano ex India oecidentali minime esse vere nigro limitatum ; 

 nigredo ab Achario respecta est fortuita, nee characteri Lichenis 

 adscribenda. Comparetur L. holochracea, Nyl., affinis, sed tota 

 ochracea, obveniens in India orientali, Mt. Khassya (Dr. Hooker) 

 et in Himalaya boreali-occidentali (Kurz.)." 



L. cinnabarina, var. perminiata, Nyl. Differens lichene toto in- 

 tensive ciunabarino-tincto. Spone longit. 008-001 1 millim., crassit. 

 005-0006 millim. 



On rocks ; apparently common, but, like the type, rarely fertile : a very 

 beautiful plant. 



