LICHINA. 133 



gin. Spores oblong, often a little curved, simple, colourless, ^ 



mic., the slender paraphyses at length distinct. Born, in Ann. 



Sci. 3, 18, 171. Nyl. Syn. I, p. 90. 



Rocks of the Blue Ridge in Georgia (Lesquereux) , Bornet I. c. 

 1852. Vermont, Frost. Massachusetts, Willey. 



Like a reduced, and more shrub-like Efrhebe, with what might 

 seem normal apothecia. Spermogones as in the last ; but the 



sterigmas shorter. E. Lesquereuxii, Born. I c., p. 170, from 



the Raccoon Mountains, Alabama (Lesquereux), is said by Bornet 

 to differ from E. solida only in being thrice or four times as 

 large ; the fruit is unknown, and the plant no longer exists in 

 Herb. Lesq. E. pubescens occurs now in Alabama (Peters) twice 

 as large as in the ordinary state, there also found. 



The more normal fruit being all in fact that distinguishes this 

 section of Ephebe from the first, it appears undesirable to sep- 

 arate it generically as Ephebeia, Nyl. (Flora, 1875). 



Sect. 2. Eulichinei. Thattus fruticulose, the gonimia 

 concatenate, and constituting a distinct layer. 



XXIV. LICHINA, Ag., Mont. 



Apothecia minute, terminal, globose-lecanorine j with a 

 punctiform disk. Spores ellipsoid, simple, colourless. Sper- 

 rnatia ellipsoid; on simple sterigmas. Thallus shrub-like, 

 cartilagineous-corneous, brownish-black ; the texture Colle- 

 meine ; but the necklace-like chains of gonimia distinctly 

 separated from the mostly determinate cortical, as from the 

 medullary layer. 



L. confinis (Sin.) Ag. ; thallus densely csespitose, dichoto- 

 mously branched ; greenish-black; the slender branches terete, 

 and somewhat fastigiate. Spores in cylindraceous thekes, the 

 paraphyses finally distinct. Koerb. Syst. p. 430. 



* Willeyi ; thallus scarcely differing externally, but the corti- 

 cal layer obsolete ; and the gonimia supplanted, for the most 

 part entirely, by a microscopical Alga, the long tapering points 

 of which appear outwardly ; apothecia also similar to those of 



the species; as well as the spores. Lichina L. confini prox., 



Schwend. Algentypen der Flechtengonid. p. 19. 



