. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fio. 104. —Sphaerella laricina. Section through a diseased larch needle in June after it has lain on the ground from the previous year. The mycelium is thick, thick-walled, and of a light-brown colour. The perithecia contain asci and asco- spores. To the extreme right is a pycnidium containing little oblong conidia, alongside a perithecium. x ^-^. (After R. Hartig.) for distribution by means of conidia. As, however,

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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. Fio. 104. —Sphaerella laricina. Section through a diseased larch needle in June after it has lain on the ground from the previous year. The mycelium is thick, thick-walled, and of a light-brown colour. The perithecia contain asci and asco- spores. To the extreme right is a pycnidium containing little oblong conidia, alongside a perithecium. x ^-^. (After R. Hartig.) for distribution by means of conidia. As, however, we ascend into the mountains, the snow lies longer, so that the perithecia cannot begin to form so early, the ascospores are correspondingly late in reaching maturity, and the season during which the parasite may spread is still further shortened by the earlier commencement of winter. At an elevation of 1500 metres.. 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.