1915] 



BURT THELEPHORACEAE OF NORTH AMERICA. IV 655 



with 2 sterigmata; spores colorless, even, curved towards the 

 base, 16-20 X 7-8 /*. 



Parasitic on Vaccinium membranaceum, which produces 

 shoot galls with all the later leaves of the gall red on the 

 upper side, f elty below, and but slightly, if at all, deformed. 



Mt. Rainier, Washington. August. 



In the original description of this species, the spore dimen- 

 sions are stated as 25-32 X 8-12 /*. The European specimens 

 in the exsiccati cited below, which European authors refer 

 here, have spores of the dimensions of the American collection. 

 Shoot galls of the type stated are the only form known to be 

 caused by this species, but other forms may yet be found. 



Specimens examined : 

 Exsiccati : Briosi & Cavara, Fung. Par., 261 ; Eriksson, Fung. 

 Par. Scand., 286a under the name Exobasidium Vaccinii. 



Norway: on Vaccinium Myrtillus, Eriksson, Fung. Par. 



Scand., 286a; on V. uliginosum, G. von. Lagerheim, Briosi 



& Cavara, Fung. Par., 261. 

 Washington: on Vaccinium membranaceum, Mt. Rainier, C. 



V. Piper, 443. 



3. E. Symploci Ell. & Mart. Am. Nat. 18: 1147. 1884. 



Fructification amphigenous, resupinate, effused, consisting 

 of lax, slender, colorless hyphae which bear solitary conidia 

 at the tips of very short, lateral, ascending branches ; conidia 

 colorless, even slightly curved, acicular, 7-24x1-2 y, basidia 

 and basidiospores unknown. 



Parasitic on Symplocos tinctoria which produces bud galls 

 3-3£ cm. in diameter, lemon yellow, subglobose and sublobate. 



Florida, Alabama, and Indiana. March and April. 



In the original description it is stated that the galls are dis- 

 torted flower buds. In a specimen collected in Indiana, the gall 

 is a partially developed leaf bud. 



Specimens examined : 



Exsiccati: Ell. & Ev., N. Am. Fung., 1696. 



Florida: on Symplocos tinctoria, Green Cove Springs, G. 

 Martin (in Mo. Bot. Gard. Herb., 4968) ; and in Ell. & Ev., 

 N. Am. Fung., 1696. 



