. Fig. 22.—Rhizopus nigricans, i. portion of fungus; 2, zygo- spore; 3, spores; 4, Synchytrium taraxici; resting-spore in epidermal cell ; 5, resting-spore liberating a mass of sporangia ; 6, a sporangium liberating zoospores. All highly mag. Synchy trill in Niessii (Bubak) forms warts on the leaves of Gagea and Ornithogalum utjibellatum. The warts are at first dirty white, bounded by a dark brown line. Resting-spores globose, single or 2-10, sometimes up to 20 in inflated or spindle-shaped epidermal cells. Bubak, F., Sep. Osterr. Bot. Zeitschr., No. 7, Ser. 2 (1898).

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Keywords: ., bookpublishernewyorkmacmillan, booksubjectplantdis, bookyear1910