FUNGI 



49 



Tricholoma melaleucuin Persoon.J 

 Orca (Trelease, 523). 



STERILE MYCELIA. 

 Sclerotium varium Persoon. 



Kadiak (Trelease, 737^? ^^ decaying stems of Heracleum), 

 Sclerotium durum Persoon. 



Orca (Trelease, 73°^? ^'^ decaying stem of Veratrum^ associated 

 with Patinella aloysii-sabaudice.') 



PSEUDO-FUNGI. 

 The following mite-galls, formerly placed in the pseudo-genus 

 Erineum^ occur in Alaska : 



Erineum alneum Persoon.* 



Muir Glacier (Trelease, 711) ; Kadiak (Cole). On leaves of Alnus. 



Erineum roseum Schult. 



Hooker & Arnott, Bot. Beechey 134. — Rothrock, Smithsonian Rept. 

 1867 : 463. — Turner, Cent. Nat. Hist. Alaska 85. 



Alaska. Doubtless on leaves of Betula^ unless it refers to the pre- 

 ceding. 



Erineum aucupariae Kunze.^ 



Wrangell (Evans, 64, on leaves of Sorbus). 

 Erineum pyrinum Persoon.* 



Cape Fox (Trelease, 666, on leaves of Pyrus rivularis). 



INDEX TO HOST GENERA.* 



AcoNiTUM. Alnus. 



.^cidium circinans £. aconiti del- Didymosphaeria nana. 



phinifolii. Erineum alneum. 



Agrostis. Gnomoniella tubiformis. 



Leptosphseria leersiana. Hjpoxylon majusculum. 



Septoria grylli. Limacinia.-' alaskensis. 



Sphaerella californica. . Nectria episphaeria. 



Sphaerella ignobilis. Sphaerella alni-viridis. 



AiRA. Sphaerella stellarinearum. 



Didymosphaeria arenaria. Anemone. 



Stagonospora graminum. ^cidium ranunculacearum. - 



* Determined by Professor Farlow. 



* A few indefinite references, such as wood, moss, etc., are to be found at end 

 of the generic index. 



