American journal of pharmacy . fromEuropean stock. Macroscopic Structure.—In external appearance the fruit of thisspecies is distinguished from the red currant by its black color andby the longer floral parts. The seeds are somewhat smaller andmore numerous (about fifteen in each berry) than in the red varieties. The calyx is about 7 millimeters long, and the lobes are reflexed. 544 Anatomy of Edible Berries. \ Am. Jour. Pharm>L November, 1904. On the outer surfaces and on the ends of the inner surfaces, thelobes are clothed with numerous hairs; but the throat is smooth, asare also the peta
American journal of pharmacy . fromEuropean stock. Macroscopic Structure.—In external appearance the fruit of thisspecies is distinguished from the red currant by its black color andby the longer floral parts. The seeds are somewhat smaller andmore numerous (about fifteen in each berry) than in the red varieties. The calyx is about 7 millimeters long, and the lobes are reflexed. 544 Anatomy of Edible Berries. \ Am. Jour. Pharm>L November, 1904. On the outer surfaces and on the ends of the inner surfaces, thelobes are clothed with numerous hairs; but the throat is smooth, asare also the petals and the styles. The latter is entire for at leastthree-fourths its length, but two-lobed at the end. Histology Meyen^ noted the glands on the black currant leaf in 1837. Lampe^ studied the pericarp but did not describe the glands. The cells of the Epicarp {Fig. 21, epi) are beaded and of aboutthe same size as in the red currant. Here and there may be seenthe bright yellow disk-shaped glands which are often 0-17 millimeter. Fig. 21.—Black currant, epi, epicarp with d gland, in surface view. X 160. or more in diameter (d). They occur in still greater numbers onthe leaves, as was noted by Meyen, who found that they agreed instructure with the glands of the hop. These glands consist of asingle layer of cells in the form of a disk, joined in the middle tothe epicarp by means of a short several-celled stalk. The yellowoily secretion to which the plant owes its characteristic odor andflavor is contained in the reservoir formed by the separation of theouter cuticle from the cells. The Mesocarp, Endocarp, and Seed have the same general struc-ture as the same parts of the red currant. Under the microscope the Calyx Hairs have the same appearance ^ Secretionsorgane d. Pflanzen, Lac. p. 295. Berlin, 1837. oV-lmberim} Pharmaceutical Meeting. 545 as those on the epicarp of the raspberry. Ttiey are crooked, blunt-pointed, thin-walled, and vary in length up to 0-6 millimeter. Micr
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