. Fig. 43.—Pu-onosporo. viciae. Conidiophores and conidia. (v. Tubeuf del.) P. arborescens (Berk.). On leaves and shoots of wild and cultivated poppies ; especially injurious to seedlings of garden species. P. parasitica (Pers.) (Britain and America). This pro- duces greater or less deformation of attacked stems of many wild and cultivated Cruciferae. Amongst cultivated plants the most liable to injury are the varieties of turnips and cabbage, radish, rape, cress, wallflower, also the mignonette. It is generally found along with Cystopus candidus on shepherd's purse {CapscUa). P. cytisi,

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. Fig. 43.—Pu-onosporo. viciae. Conidiophores and conidia. (v. Tubeuf del.) P. arborescens (Berk.). On leaves and shoots of wild and cultivated poppies ; especially injurious to seedlings of garden species. P. parasitica (Pers.) (Britain and America). This pro- duces greater or less deformation of attacked stems of many wild and cultivated Cruciferae. Amongst cultivated plants the most liable to injury are the varieties of turnips and cabbage, radish, rape, cress, wallflower, also the mignonette. It is generally found along with Cystopus candidus on shepherd's purse {CapscUa). P. cytisi, Eostr.,^ attacks seedlings of laburnum in Denmark, causing death in a few days. The leaves become brown spotted, ^ Zeitschrift f. , ii., p. 386, (description of attack in Silesia.) ^ Rostrup, Zeitschrift f. Pflanzenkrankhdten, 1892. Magnus, Hedicigia, 1892.

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