. Fici. â Ji. â Chiitridiutn brassicae, Wor. Cell containing three sporangia, two of which are discharging zoospores; one sporangium is already cniptj-. Resting- spores inside the cells of a cabbage-plant. (Aftei' Woronin.) The disease is favoured by moisture, and restricted by dry surroundings. Ground subject to attack should be planted with crops other than cabbage. Olpidium trifolii, Schroet. { = Sjfnchijtriiim trifolii, Pass.) Produces deformation of the leaves and petioles of Trifoliniii â /â¢('pens. The fungus lives in the epidermal cells. Olpidium lemnae, Fisch., in epidermal cells of L
. Fici. â Ji. â Chiitridiutn brassicae, Wor. Cell containing three sporangia, two of which are discharging zoospores; one sporangium is already cniptj-. Resting- spores inside the cells of a cabbage-plant. (Aftei' Woronin.) The disease is favoured by moisture, and restricted by dry surroundings. Ground subject to attack should be planted with crops other than cabbage. Olpidium trifolii, Schroet. { = Sjfnchijtriiim trifolii, Pass.) Produces deformation of the leaves and petioles of Trifoliniii â /â¢('pens. The fungus lives in the epidermal cells. Olpidium lemnae, Fisch., in epidermal cells of Lemna. Olpidium simulans, De Bary and Wor., in Taraxacum officiiKth'. A number of other species inhabit algae, spores, fungus- mycelium, pollen-grains, and eggs of Rotatoria. The genera Rcessia, Fseudoljndmm, Olpidiopsis, Flcotrachdm, Ectrogclla, Pleolpidium are parasitic only on lower plants, especially on algae. SYNCHYTRIACEAE. The whole mycelium divides up into a number of sporangia, which remain together as a sorus. The winter resting-spores ' Woronin, Prmgsheim's Jahrbuchf. iciss. Botanik, 1878 (Fig. 31).
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi
