. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. HERPOTRICHIA. 199 Herpotrichia nigra Hartig.^ This parasite is distinguished by its grey mycelium, which covers and completely envelops twigs and young plants. On the dwarf mountain pine it is not uncommon to find branches bearing patches of blackened needles closely bound together by gossamer threads, the other parts remaining still green and forming a background against which the blackened masses show up prominently
. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. HERPOTRICHIA. 199 Herpotrichia nigra Hartig.^ This parasite is distinguished by its grey mycelium, which covers and completely envelops twigs and young plants. On the dwarf mountain pine it is not uncommon to find branches bearing patches of blackened needles closely bound together by gossamer threads, the other parts remaining still green and forming a background against which the blackened masses show up prominently (Fig. 89). Young spruce plants nnder a metre in height and the lower branches of taller trees are frequently completely enveloped in mycelium, and, where they have been pressed down to the ground by weiglit of snow, the twigs may be woven round and fastened to the earth by a felt of Fifi. 90.—Herpotrichia nifira. a, hyphae weav- ing ii granular mycelium on the surface of the needle and forming tuber-like bodies over the stoniata ; rod-like haustoria are sunk into the outer walls of the epidermal cells. (After R. Hartig).. 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 Tubeuf, Karl, freiherr von, 1862-; Smith, William G. London, New York [etc. ] Longmans, Green & co.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi
