. The fungi which cause plant disease . Plant diseases; Fungi. Leaf Dssue 17-32 X 14-20 II. II. Urediniospores pale-brown, aculeolate, 24-33 X 16-20 II. III. Teliospores elliptical or subglobose, smooth, dark-brown, apex much thick- ened, with a small, hyaline, wart- like papilla, 2&-35 x 20-26 ii. An autoecious eu-type. On Phaseolus, Dolichos and other related legumes. The sori usually appear late in the season on leaves, rarely on stems and pods. The myceliiun is local. Great difference in varietal susceptibility is noted. U. pisi (Pers.) de ; I. (=^cidium cyparissiae). Fig. 267.—
. The fungi which cause plant disease . Plant diseases; Fungi. Leaf Dssue 17-32 X 14-20 II. II. Urediniospores pale-brown, aculeolate, 24-33 X 16-20 II. III. Teliospores elliptical or subglobose, smooth, dark-brown, apex much thick- ened, with a small, hyaline, wart- like papilla, 2&-35 x 20-26 ii. An autoecious eu-type. On Phaseolus, Dolichos and other related legumes. The sori usually appear late in the season on leaves, rarely on stems and pods. The myceliiun is local. Great difference in varietal susceptibility is noted. U. pisi (Pers.) de ; I. (=^cidium cyparissiae). Fig. 267.—Diagramn)atic section of ure- i-, . ij. j i,„i„ dinium of U. appendiculatus. After .lEcia scattered over the Whole Whetzel. jgj^f surface. Peridia cup-shaped, with whitish edges. Spores subglobose or polygonal, orange, finely verrucose, .17-26 /u in diameter. II. Uredinia roundish, scattered or crowded, cinnamon-brown. Spores subglobose or elongate, yellowish- brown, echinulate, 17- 20 X 20-25 M. III. Telia roundish or elliptical, blackish. Spores subglobose or shortly elliptical, finely but closely punctate, apex only slightly thickened, 20-30 x 17- 20 n. Pedicels long, colorless, fragile. A heteroecious eu- type not found in America: 0 and I on Euphorbia. II and III on Lathyrus, Pisum, Vicia. The aecial stage dwarfs the host in which it is pereimial. 7. Epidermis ^ "^ of Leaf Spores — Leaf Tissue Young Spore Fig. 268.^Diagrammatic section of teliospores of U. appendiculatus. After Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stevens, Frank Lincoln, 1871-1934. New York : Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1913
