A true Biatora, having the margins of the young apothecia both coloured and soft. It is not a European species, though belonging to Tries' section "fuscescentes" and allied to B. uliginosa. I have little doubt of its being the plant of Eschweiler. C. Babington.
2. Biatora pulverea, (Lecidea) Borr. ; in Engl. Bot. Suppl. t. 2726.
Hab. Falkland Islands ; on rocks.
15. LECIDEA, Ach.
1. Lecidea mamillaris, Fries? Llch. Eurqp. p. 285. Lichen tumidulus, Smith m Linn. Soe. Trans. vol. i. p. 82. t. 4. f. 3.
Hab. Herrnite Island, Cape Horn ; on the top of Kater's peak.
It is possible that these imperfect specimens may be referable to some paradoxical form of L. vesicularis. C.B.
2. Lecidea Candida, Ach. ? Lich. Univ. p. 212. Engl. Bot. 1. 1138. Schcerer, Lid. Helvet. n. 167.
Hab. Herrnite Island, Cape Horn ; on hard soil.
I am not satisfied with the identification of this with the British L. Candida : it may be merely a form of L. vesicularis. The hypothallus is black. C. Babington.
3. Lecidea vesicularis, Ach.; Lich. Univ. p. 212. Engl. Bot. t. 1139. Schcerer, Spicel. p. 120. Lich. Helvet. n. 168.
Hab. Herrnite Island, Cape Horn, aud the Falkland Islands ; on the ground, abundant.
These specimens resemble Indium oculatmu when in a young state. I am in doubt whether some may not be referable to L. epigeea, winch, as well as L. vesicularis, is a very polymorphous plant. 0. Babiugtoa.
4. Lecidea aromatica, Ach.; Lich. Univ. p. 168. Engl. Bot. 1. 1777. Hab. Kerguelen's Land; on moist rocks.
Specimens greener and darker than in Schaerer's, but still I think referable to that species. C.B.
5. Lecidea albo-ccerulescens, Ach.? Lich. Univ. p. 188. Lichen pruiuosus, Engl. Bot. t. 2244. L. contluens, nob. (in part), Lond. Journ. Bot. vol. iii. p. 636.
Hab. Kerguelen's Land ; on rocks near the sea and on the lulls. Specimens very fine, altogether resembling what I have gathered on the Austrian Alps. C. Babington.
6. Lecidea spilota, Fries ; Lich. Europ. p. 297. L. rivulosa, nobis, in Lond, Journ. Bot. vol. iii. p. 636.
Hab. Kerguelen's Land ; on moist rocks.
The specimens, which are rather young, certainly do not belong to L. rivulosa, and are, I think, referable to L. spilota, with which species, however, I am not sufficiently acquainted. C. Babington.
7. Lecidea contigua, Fries; Lich. Europ. p. 298. L. speirea, var. hydrophila, Fries, I.e. Lee. confluens, (in part), Engl. Bot. t. 1864.
Hab. Herrnite Island, Cape Horn ; on rocks. Var. hydrophila, Kerguelen's Land ; also on rocks.
The disc does not appear to be pruinose when young, in which respect only this differs from Fries' plant. It is allied to L. nitidida, differing from it only in the apothecia springing from the crust ; which is the case also in Sehrerer's specimens of that plant. C. Babington.
