. Fig. 21G.âGyriinoiporangium, clavariafforrm. 1, 2, 3, Stages in development of the spore-cushions. U, 5, 6, Isolated spores (enlarged); -5 is thin-coated, the others are thick-coated. 7, Germinating spore with promycelium abjointing sjxiridia ('>). 9, A germinating sporidiiim. (After Tubeuf.) walled, the succeeding ones are thin-walled. Uredospores do not occur. The aecidia have a thick peridium. The teleuto- ^v. Tubeiif : (1) Centralhlatt f. Bakter. ParasiteJihmde, 1891; with a review of the current Literature. (2) "Infectionen mit ; ForstUch- natunciss. Zei
. Fig. 21G.âGyriinoiporangium, clavariafforrm. 1, 2, 3, Stages in development of the spore-cushions. U, 5, 6, Isolated spores (enlarged); -5 is thin-coated, the others are thick-coated. 7, Germinating spore with promycelium abjointing sjxiridia ('>). 9, A germinating sporidiiim. (After Tubeuf.) walled, the succeeding ones are thin-walled. Uredospores do not occur. The aecidia have a thick peridium. The teleuto- ^v. Tubeiif : (1) Centralhlatt f. Bakter. ParasiteJihmde, 1891; with a review of the current Literature. (2) "Infectionen mit ; ForstUch- natunciss. Zeitsrhrift, 1893, p. 75. Woemle, "Anatomische Untersuchungen d. durch Gymnosporangium-Arten hervorgerufenen !Missbildungen," idem., 1894. American Literature, see p. 40L - The gelatinous substance is obviously well-adapted to absorb rain-water and so facilitate germination of the teleutospores in situ; the sporidia pro- duced are then carried off by rain or liberated after the cushions dry again.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi
