. Text-book of botany, morphological and physiological. Botany. Fig. 81.—Transverse section of the stem of Sphagnum cymbifolium (X 900); x inner cells with colourless soft walls ; r cortical cells, becoming gradually narrower and thicker- walled towards the surface; e e the epidermal layer; / orifices through which adjacent cells communicate with one FIG. of a radial longitudinal section through the sporangium of Funaria hygrometrica (X:3oa) ? e epidermis; the thick black line on the outside is the cuticle. {For further explanation of the Flg. see Book II.) is surrounded by
. Text-book of botany, morphological and physiological. Botany. Fig. 81.—Transverse section of the stem of Sphagnum cymbifolium (X 900); x inner cells with colourless soft walls ; r cortical cells, becoming gradually narrower and thicker- walled towards the surface; e e the epidermal layer; / orifices through which adjacent cells communicate with one FIG. of a radial longitudinal section through the sporangium of Funaria hygrometrica (X:3oa) ? e epidermis; the thick black line on the outside is the cuticle. {For further explanation of the Flg. see Book II.) is surrounded by a highly developed true epidermis, sometimes provided with stomata (Fig- 82)- (b) The Epidermis1. In Vascular Plants the epidermal tissue consists usually only of a single superficial layer of cells, the true Epidermis. In its origin it always consists of a single layer; but this sometimes splits into two or more by divisions parallel to the 1 H. von Mohl, Vermischte Schriften bot. Inhalts. Tubingen 1845, p. 260-F. Cohn, De Cuticula. Vratislavise 1850.—Leitgeb, Denkschriften der Wiener Akad. 1865, vol. XXIV. p. 253.— Nicolai, Schriften der Gesells. Konigsberg, 1865, p. 73.—Thomas, Jahrb. fur wiss. Bot. vol. IV. p. 33.—Kraus, ibid., vol. IV. p. 305, and vol. V. p. 83. — Pfitzer, ibid., vol. VII. p. 561, and vol. VIII. p. 17.—De Bary, Bot. Zeitg. 1871, nos. 9-11 and 34~37- H. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Sachs, Julius, 1832-1897; Vines, Sydney Howard, 1849-1934. ed. and tr. Oxford, Clarendon press
Size: 1158px × 2158px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1882
