. Fig. 91.—Puccinia malvacearum. Hollyhock leaf showing pustules of fungus ; 2, teleutospores, one germinating. Highly mag. Teleutospores only are present. These are fusoid or clavate, apex thickened, yellow-brown, smooth, 30-50X10- 12 /A, pedicel hyaline, about as long as spore. This fungus is common on many of our wild caryophylla- ceous plants, as chickweed, stitchwort, lychnis, etc., hence all such weeds should not be allowed to grow in the neigh- bourhood of cultivated plants. The directions given under

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Keywords: ., bookpublishernewyorkmacmillan, booksubjectplantdis, bookyear1910