392 BOTANY OF SOCOTRA. 



3. EUTYPA. 

 Eutypa, Tul. Sel. Fung. Carp. ii. 52 ; Sacc. Syll. i. 162. 



A genus of about fifty-six species, mostly European or of the temperate 

 part of North America. 



1. E. Acharii, Tul. Sel. Fung. Carp, ii, 53, t. 7, ff. 8-20; Sacc. Syll. i. 162. 



Socotra. On dry rotten wood on Galonsir Plain. B.C.S. 1344 bis. 

 Distrib, Europe and North America. 



2. E. aspera, (Nits.) Fuck. Symb. Myc. 214 ; Sacc. Syll. i. 163, 

 var. lignicola, Cke. 



Socotra. B.C.S. n. 1307 A. 



Distrib. of the species, — Europe, N. America ; of the variety, — Socotra. 



4. VALSA. 



Valsa, Adans. Fara. ii. 9 ; Fries Summa Veg. Scandin. ii. 410, and Homom. 107 ; Sacc. 

 Syll. i. 108. 



A large genus chiefly found on twigs and branches of trees in temperate 

 and warm temperate regions ; rare in the tropics. 



V. stellulata, Fries Summa Veg. Scandin. 411. 



Socotra. On a tree stump upon Galonsir Plain. B.C.S. n. 1309. 

 Distrib. Europe, N. America, Cuba, Surinam. 



5. OSTKOPA. 



Ostropa, Fries PI. Homom. 109. 



A small genus, with limited distribution in temperate regions. 



O. cinerea, Fries Syst. Orb. Veg. 109. 



Socotra. Growing on wood upon the hill slopes near Galonsir. B.C.S. 

 n. 1306. 



Distrib. Europe, N. Africa, U. States. 



6. DOTHIDEA. 



Dothidea, Fries (1818) Obs. Myc. ii. 347 ; Sacc. Syll. ii. p. G27. 



A large genus in temperate and tropical regions, latterly subdivided into 

 several smaller sub-genera according to the character of the sporidia. 



