BOTANY. 29 



6. Lecanoea GELiDAji; Acb. — Eocks. — Thallusand cephalodia stouter 

 than I have seen them in the northern lichen. Spores 0,015-23°^°^ long 

 and 0,006-12'^«» thick. 



7. L. Hageni, Ach. Koerb.—Eocks. — Several minute, lecanorine 

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

 atibrded no sufficient analysis. Taylor reckons L. subfusca in his list. 



8. L. MACEOPHTHALMA, Tayl. ^j\. Urceolaria, Tayl. 1. c, Lecanora, 

 Nyl. in Mora, 1858 cit. Krempelh. — Eocks. — Thallus like that oiL. gelida, 

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

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

 observed. Thalli exceeding two inches in width. 



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

 albido connivente discum rubrum submarginante, margine thallino 

 evanido. Sporse ellipsoideae, incolores. Spermatia acicularia, arcuata, 

 sterigmatibus subsimplicibus. Thallus crustaceus, efflguratus. 



Ueceolina Keegueliensis, sp. nov. — Thallo crustaceo adnato areo- 

 lato verrucoso aurantiaco-fuscescente, verrucis gibbosis centroque sub- 

 stipitatis in ambitum ef&guratum coalescentibus ; apotheciis (circ. 1™"*. 

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

 Sporse in thecis uniserialiter octonae, simplices, limbatae, 0,021-30™™ long., 

 0,015-20™™ crass., paraphysibusfiliformibus. — Eocks. — 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 thalline 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 EUBELLA, Wirh. Eabeuh. — 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 0,030-46™™ 

 long and 0,0015-25™™ thick. Eeaction of hymenial gelatine with iodine 

 violet. 



