Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] 4o6 DISEASES OF CULTIVATED PLANTS SPHAEROPSIDIACEAE * Spores continuous PHOMA (Fries.) Perithecia subcutaneous then erumpent, globose or com- pressed, not beaked, mouth minute, conidia hyaline, continu- ous, elliptical to subglobose. A numerous genus, the species forming crowds of black microscopic dots on stems and leaves. Gooseberry shoot spot.—Numerous minute black dots nestling in the epidermis of gooseberry shoots, more especially Fic. 126.— I, Phyllostula violac on viol
Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] 4o6 DISEASES OF CULTIVATED PLANTS SPHAEROPSIDIACEAE * Spores continuous PHOMA (Fries.) Perithecia subcutaneous then erumpent, globose or com- pressed, not beaked, mouth minute, conidia hyaline, continu- ous, elliptical to subglobose. A numerous genus, the species forming crowds of black microscopic dots on stems and leaves. Gooseberry shoot spot.—Numerous minute black dots nestling in the epidermis of gooseberry shoots, more especially Fic. 126.— I, Phyllostula violac on violet leaf; 2, section of a perilhecium of J'/iy/losticta ; 3,' spores of same ; 4, spot on violet leaf formed by the fungus ; 5, Phoina susf>ecta, on gooseberry twig ; 6, peritheciiini of same in section ; 7, spores of same. near the tip, are exceedingly common ; in fact it is difficult to meet with a shoot of the season clear of these dots, which are the perithecia of Phoina suspecta (Mass.). This fungus is slightly, if at all, parasitic in its nature, and does no real injury, but is somewhat interesting as having been on many
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