Page:The Botany of the Antarctic Voyage.djvu/226

200 10. LECIDEA, Ach.

1. Lecidea geomcea, Taylor, m Flor. Hibem. p. 124. L. uliginosa, var. y, Ach. Syu. LicJi. p. 25.

Hab. Lord Auckland's group ; on the ground.

2. Lecidea incana, Hook., Br. Fl. vol. ii. p. 181. Lichen incanus, Engl. Bot. t. 1683. Biatora pachycarpa, Fries, Lich. Euro]}, p. 259.

Hab. Lord Auckland's group ; on the ground.

Mr. Churchill Babington informs us, that he has proved the L. incana to be merely a deliquescent state of Fries's Biatora pachycarpa.

11. PORINA, Ach.

1. Poeixa granula ta, Hook. fil. et Tayl. ; thallo tartare'o grauulato albido, granulis subrotundis rugosis confertis fertilibus majoribus, poris 1-5 pertusis, nucleis pellucidis pallide lutescentibus.

Hab. Lord Auckland's group ; bare ground on the hills.

This plant grows mixed with young states of Lecanora Parella, from which it is with difficulty distinguished, it forms large pure white or pinkish patches, sometimes several inches in breadth, very convex, and often raised above the soil ; the apothecia are hemispherical, with a broad depression, in the centre of which again is often a co- nical mamilla ; there appear to be no spores in the apothecia, and the plant may be merely a rudimentary form of some more highly organized lichen. It is also abundant at Cape Horn and in the Falkland Islands.

12. THELOTEEMA, Ach.

]. Theloteema /epadinum, Ach., Syn. Lich. p. 115. Lichen inclusus, Engl. Bot. t. 678.

Hab. Lord Auckland's group; on the bark of trees, abundant.

13. OPEGRAPHA, Ach.

1. Opegeapha atra, Pers.; O. denigrata, Ach. Engl. Bot. t. 1753.

Hab. Campbell's Island; on the bark of Bracophyllum scoparium