produced visible for many miles. It is partial to the effluvium from decaying animal matter, as is the case with other ParmeUa belonging to the citrinous series.
10. Lecanora citrina, Ach.; Lick. Univ. p. 402. Engl. Bol. t. 8b7 . Moug.et A T estl. n. 7 4<2.
Hab. Kerguelen's Land; on rocks near the sea.
Specimens very imperfect, but, we think, referable to this species.
11. Lecanora erythrocarpia, Fries, Lich. Europ. p. 119. L. theioclyta, Ach. Lick. Univ. p. 425.
Hab. Kerguelen's Land; in a cave near the sea. Rather a doubtful determination. C.Babington.
§ III. Psora, Fries.
12. Lecanora melanaspis, Ach.; Licit. Univ. p. 427. Fries, Lich. Europ. p. 122. L. dichroa, nobis in Lond. Journ.Bot. vol. iii. p. 643.
Hab. Kerguelen's Land; on hard earth and stones, rare.
13. Lecanora molybdina, Ach.; Lich. Univ. p. 430. Fries, Lick. Europ. p. 126.
Hab. Kerguelen's Land ; on bare and hardened earth.
§ IV. Patellaria, Fries.
14. Lecanora tartarea, Ach.; Lich. Univ. p. 172. Engl.Bot. 1. 156.
Hab. Hennite Island, Cape Horn, and the Falkland Islands; abundant. Kerguelen's Land ; rare.
15. Lecanora parella, Ach.; Lich. Univ. p. 370. Engl.Bot. t. 727.
Var. y. Upsaliensis, Ach.; Lich. Univ. p. 371. Engl.Bot. 1. 1634.
Hab. Falkland Islands ; on quartz rocks. Var. y. Hermite Island, Cape Horn, and the Falkland Islands; on the ground.
16. Lecanora suhfnsca, Ach.; Lich. Univ. p. 393. Engl. Bot. t. 2109.
Var. epibryon; Lecanora epibryon, Ach. I. c. Mong. et Nestl. n. 120.
Var. albella, Fries; Lecanora albella, Ach. I. c. Engl.Bot. t. 2157.
Hab. Strait of Magalhaens ; on wood, Capt. King. Falkland Islands ; on rocks, and on dead twigs of Acana. Var. epibryon, Kerguelen's Land; on decayed Azorella. Var. albella, Hermite Island, Cape Horn; on Winter's bark.
17. Lecanora atra, Ach.; Lich. Univ. p. 344. Engl. Bot. t. 949. Mong. et Nestl. n. 458.
Var. /3. confragosa, Ach.; 1. c. p. 345.
Hab. Hermite Island, Cape Horn, and the Falkland Islands ; on rocks. Var. |3. Hermite Island, Cape Horn ; on rocks.
18. Lecanora sophodes, var. c. exigua, Fries, Lich. Europ. p. 149. Engl.Bot. 1. 1849.
Hab. Falkland Islands ; on rocks.
