FUNGI 49 



Tricholoma melaleucum Persoon. J 

 Orca (Trelease, 523). 



STERILE MYCELIA. 

 Sclerotium varium Persoon. 



Kadiak (Trelease, 73 70, in decaying stems of Heracleum}. 

 Sclerotium durum Persoon. 



Orca (Trelease, 7300, in 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. 1 



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

 Erineum roseum Schult. 

 HOOKER & ARNOTT, Bot. Beechey 1 34. ROTHROCK, Smithsonian Kept. 



1867 : 463. TURNER, Cont. Nat. Hist. Alaska 85. 



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

 ceding. 



Erineum aucupariae Kunze. 1 



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

 Erineum pyrinum Persoon.* 



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



INDEX TO HOST GENERA. 2 



ACONITUM. ALNUS. 



^Ecidium circinans f. aconiti del- Didymosphaeria nana. 



phinifolii. Erineum alneum. 



AGROSTIS. Gnomoniella tubiformis. 



Leptosphseria leersiana. Hypoxylon majusculum. 



Septoria grylli. Limacinia? alaskensis. 



Sphserella californica. Nectria episphaeria. 



Sphserella ignobilis. Sphaerella alni-viridis. 



AIRA. Sphserella stellar inearum. 



Didymosphseria arenaria. ANEMONE. 



Stagonospora graminum. ^Ecidium ranunculacearum. 



1 Determined by Professor Farlow. 



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

 of the generic index. 



