BOTANY. 29 



6. Lecanora gelida,/v. Acb. — Rocks. — Tballusaud ceplialodia stouter 

 than I have seen theni iu the northern lichen. Spores 0,015-23'"™ long 

 and 0,000-12'"'" thick. 



7. L. Hageni, Ach. Koerb.—Rocks. — Several minnte. lecanorine 

 apotuecia with white, crenate margins, appear to belong here, but have 

 afforded no suflicieut analysis. Taylor reckons L. sub/usca in his list. 



8. L. MACROPHTHALMA, Tayl. Njl. Urccolaria, Tayl. 1. c, Lecanora, 

 Nyl. iu Flora, 1858 cit. Krempelh. — Rocks. — Tballns like that oHL. gclida, 

 with which it agrees in possessing similar, but more depressed, cepha- 

 lodia; being the third lichen thus curiously characterized in this small 

 collection. The apothecia are externally best comparable with those of 

 Lecidea endochlora (Tayl. sub Urceolaria), but the lichen is probably 

 to be referred to the sect. Aspicilia ; though spermogones have not been 

 observed. Thalli exceeding two inches in width. 



9. Urceolina, Geng. nov. — Apothecia urceolata, excipulo proprio 

 albido connivente discum rubrum submarginante, margine thalliuo 

 evanido. Sport© ellipsoideae, incolores. Spermatia acicularia, arcuata, 

 sterigmatibus subsimplicibiis. Thallus crustaceus, effiguratus. 



Urceolina Kergueliensis, sp. nov. — Thallo crustaceo adnato areo- 

 lato verrucoso aurantiaco-fuscescente, verrucis gibbosis centroque sub- 

 stipitatis in ambitum effiguratum coalescentibus ; apotheciis (circ. l""". 

 lat.) immersis, margine proprio tenui pallido v. dein livido-nigrescente. 

 Spora) in thecis uniserialiter octonae, simplices, limbatte, 0,021-30™"^ long., 

 0,015-20™'" crass., paraphysibusfiliformibus. — Rocks. — Specimen scarcely 

 two inches in diameter. Whole habit of the pale-ash-colored young 

 thalli that of similar thalli of Lecanora chlorophana ; but the wart-like 

 areoles becoming a little stalked, and the color finally making as close 

 as possible approach, in the brown series, to dirty-orange in the 

 lemon-colored. More or less radiation is evident in the arrangement of 

 the warts toward the margin, which becomes lobulate, and the extreme 

 [ edge blackish. Habit of apothecia that of Urceolaria scruposa with 

 undeveloped tlialline margin. The lichen is not referable to Lecanora § 

 Aspicilia, and is excluded by its exciple from § Squamaria. 



10. Cladonia pyxidata, L. Fr. — On the earth. 



11. BiATOEA rubella, JEhrli. Rabenh. — Apothecia varying no little 

 in color and size, but all referable to the v. inundata, Nyl. (Hepp. Eur. 

 n. 289), as that is represented in North America. Spores 0,030-40'"'" 

 long and 0,0015-25™'" thick. Reaction of hy menial gelatine with iodine 

 violet. 



