. The natural history of plants. Botany. 236 NATURAL HISTORY OF PLANTS. CaManea ruhjans. times witli the remains of the perianth and styles, and inserted, to the number of one to three, by a large basilar surface, in the interior of a closed globular accrescent involucre, covered externally with bracts, which are seen in the female inflorescence, and, besides, with rigid prickles, simple or ramified at the summit,^ primarily disposed over four equidistant areas, having at first nearly the form of an isosceles triangle with superior apex- and sepa- rated from each other, at their bases, by grou
. The natural history of plants. Botany. 236 NATURAL HISTORY OF PLANTS. CaManea ruhjans. times witli the remains of the perianth and styles, and inserted, to the number of one to three, by a large basilar surface, in the interior of a closed globular accrescent involucre, covered externally with bracts, which are seen in the female inflorescence, and, besides, with rigid prickles, simple or ramified at the summit,^ primarily disposed over four equidistant areas, having at first nearly the form of an isosceles triangle with superior apex- and sepa- rated from each other, at their bases, by groups of bracts which finally con- ceal them at maturity. At maturity, the involu- cre opens above in four pannels and allows the achenes to escape. Each of these contains one fertile seed,^ the embryo (fig. 198) of which, destitute of albumen, has thick farina- ceous cotyledons, externally waved or ruminant, sometimes deeply, and a superior radicle concealing the base of the cotyledons. The Chestnuts proper are trees of the northern hemisphere. There are probably only two species,^ one American, the other, with numerous forms and variations, spread over the temperate regions of North America, Asia, Africa, and Europe. The leaves, caducous, are alternate,''^ penninerved, dentate, plicate in vernation according to the principal and lateral nervures,^ accompanied at the base of the petiole by two lateral stipules which fall early. But it appears impossible. 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 Baillon, Henri Ernest, 1827-1895; Hartog, Marcus Manuel, 1851-. London, L. Reeve & Co.
Size: 1250px × 2000px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1871
