. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fig. 101.—Tuft of larch needles, the greater number of which are more or less attacked by SphaereUa laricina. (After R. Hartig.) The rod-shaped conidia infect particularly the lower needles of the crown, and three weeks thereafter new conidial cushions. Fig. 102.—SpJiaereUa laricina. Section through a diseased spot on a larch needle. The interior of the leaf is permeated with the intercellular mycelium. Two conidial
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. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fig. 101.—Tuft of larch needles, the greater number of which are more or less attacked by SphaereUa laricina. (After R. Hartig.) The rod-shaped conidia infect particularly the lower needles of the crown, and three weeks thereafter new conidial cushions. Fig. 102.—SpJiaereUa laricina. Section through a diseased spot on a larch needle. The interior of the leaf is permeated with the intercellular mycelium. Two conidial cushions are shown : from these numerous long rod-shaped conidia are given off externally (those of the upper cushion have nearly all been carried off by rain), while cavities inside the cushions are filled with mici-o-conidia. X J-p. (After R. Hartig.) appear. Their distribution and germination are facilitated by wet weather. The perithecia (Fig. 104) are matured towards. 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 work.. Tubeuf, Karl, freiherr von, 1862-1941; Smith, William G. London ; New York [etc. ] : Longmans, Green & co.