. The American florist : a weekly journal for the trade. Floriculture; Florists. 16 The American Florist. Jan. 2S, J Carnation Diseases. BT tiEO. F. ATKIN80K, COBNELL UM1VER81TT. [Reprinted from the American Flokist of Feb- ruary 33, 1893.] The variation of plants under culti- vation lias been studied chiefly in ref- erence to the changes of external form, color, the gross anatomy of certain organs, fertility or sterility and pro- ductiveness. Very little study has been directed toward determining the corre- sponding or correlative variation in the minute anatomy, and the physiolog- ical proce
. The American florist : a weekly journal for the trade. Floriculture; Florists. 16 The American Florist. Jan. 2S, J Carnation Diseases. BT tiEO. F. ATKIN80K, COBNELL UM1VER81TT. [Reprinted from the American Flokist of Feb- ruary 33, 1893.] The variation of plants under culti- vation lias been studied chiefly in ref- erence to the changes of external form, color, the gross anatomy of certain organs, fertility or sterility and pro- ductiveness. Very little study has been directed toward determining the corre- sponding or correlative variation in the minute anatomy, and the physiolog- ical processes of nutrition, circulation and assimilation. Breeders of animals have given more attention to the law of correla- tion than have cultivators of plants. Sana flora in sana planta might well be the maxim of the florist. A great deal is said about constitutional pecu- liarities possessed by certain varieties of plants, but very few know how the different constitutional strains are related to the structural and morpho- logical characters of the variety, or to the conditions of soil, surroundings or treatment during the time of orig- ination, or to those more subtle influ- ences of change of an inherited or inherent nature. Nearly all our attention is given to producing new colors and forms of flowers and new habits of the plant, while very little thought is given to a harmonious" development of physiolog- ical process and firmness of tissue. This accounts to a large extent for the many varieties of plants which are more susceptible to fungous diseases than are other varieties. Ward* has shown that the succulent parts of plants with thin walled cells are more quickly and easily penetrated by the threads of parasitic fungi, and that. Fig. 1. Carnation rust on leaf and flower stem. Froni photograph. the carnation grower, and add to the beauty of his house. The following descriptions of some carnation diseases is given in the hope that a knowledge of the habits of the fungi, t
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectfloriculture, bookyea
