254 



Mycologia 



' Phoma asclepiadea E. & E. 

 On old stems of Asclepias speciosa Torr. (14730). 



Phoma Astragali Cooke & Hark. 

 On old stems of Astragalus oreophilus Rydb. (14663). 



Phoma complanata (Tode) 

 On old stems of Heracleitm lanatum Michx. (14640). 



Phoma Corni-Sueciae (Fr.) 



On dead branches of Cornus instalonea A. Nels. (14780 p.p.). 

 Det. Dearness. 



Phoma Estrelti sp. nov. 



Pycnidia numerous, immersed, then erumpent, globose or glo- 

 bose-depressed, centrally ostiolate, black, about 300 ^ in diam. ; 

 spores numerous, oblong-elliptic, hyaline, 6-8 X 3-4 ji, basidia not 

 observed. 



On Isocoma heterophylla (Gray) Greene, Bueyeros, Sept., 

 1916, Father A. Estrelt. 



Phoma exigua Desm. 



On Polygonum sazuatchense Small (141 13), on old stems of 

 Comandra pallida A. DC. (14769) and on old stems of Eurotia 

 lanata (Pursh) Moq. (14791 p.p.). 



Phoma i-ierbarum West. 



On old stems of Gaertneria acanthicarpa (Hook.) Kuntze 

 (14767), on old stems of Aster Novae-Angliae L. (14654), on old 

 stems of Agrimonia striata Michx. (14731), on old stems of 

 Senecio spartioides T. & G.' (14738), on same host (14758), on 

 dead stems of Pedicularis fluviatilis Heller (14486), and on stems 

 of Thermopsis Pinetorum Greene (14744). 



Phoma herbarum Medicaginis Rabh. 

 On dead stems of Medicago sativa L. (14759). 



