. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. Fig. IdT.— TilUtta liUicc. A, Two spores germinated in moist air; a short promycelium is developed, and a crown of conidia (sporidia), several of which have fused in pairs. Fushion of conidia, germination, and development of a secondary conidium, C, ;irc r\lsn slmwii. B, Two spores germinated in water with ihmijix . i wiiich elongate till the water is reached, wlui. tin v sporidia; the , _,
. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. Fig. IdT.— TilUtta liUicc. A, Two spores germinated in moist air; a short promycelium is developed, and a crown of conidia (sporidia), several of which have fused in pairs. Fushion of conidia, germination, and development of a secondary conidium, C, ;irc r\lsn slmwii. B, Two spores germinated in water with ihmijix . i wiiich elongate till the water is reached, wlui. tin v sporidia; the , _, „.., . ... promycelia are septate and tlir iili-ma ] .asses over into the Fio. \i}(,. — TilMio, triUn younger cells, (v. Tubeuf del.) StUkiiUj-smut of Wheat. Ear of •* *^ ^ wheat with smut-grains indi- cated black. The isolated spike- let contains two smut-grains, which, as well as the isolated examples, show fissures in the original ovary wall. One smut- grain in section shows the in- terior filled with black spores, but the ovary wall still intact. (V. Tubouf del.) |)ales. The spores, therefore, do not escape as dust on the field, but remain in the heads and are garnered with the crop. Smutty ears are easily distinguished on the field by their stiff erect position towards harvest-time, as compared with the more or less nodding healthy ears; their florets also lie more away from the axis of the ear, the chaff-glumes are more spread. 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
