. Class-book of botany [microform] : being outlines of the structure, physiology, and classification of plants : with a flora of the United States and Canada. Botany; Botany; Plants; Plants; Botanique; Botanique; Plantes; Botanique. m PERICARP. then either drr as the pea-pod, or succulent, as the currant. Dry peri- carps are membranous, or coriaceous (leathery), or woody Succulent pencarps niay be either wholly so. as\he gr[^, or p^^^y so rtt peach and other stone fruit. ^ ^ ' 548. Pericarp closed or opek. With very few excentions th^ pencarp encloses the seed while maturing. L „iignoner(322)
. Class-book of botany [microform] : being outlines of the structure, physiology, and classification of plants : with a flora of the United States and Canada. Botany; Botany; Plants; Plants; Botanique; Botanique; Plantes; Botanique. m PERICARP. then either drr as the pea-pod, or succulent, as the currant. Dry peri- carps are membranous, or coriaceous (leathery), or woody Succulent pencarps niay be either wholly so. as\he gr[^, or p^^^y so rtt peach and other stone fruit. ^ ^ ' 548. Pericarp closed or opek. With very few excentions th^ pencarp encloses the seed while maturing. L „iignoner(322) however, it opens, exposing the seed, immediately after flowering The membranous pencarp of cohosh (Leontice) falls away early leaving the seed o ripen naked. In yew (Taxus) the seed is never enclosed who^ oLl ^^"'''^' ^"* ^" ™^* "^ '^' ^'^'^ C^"^'"-^*' the close press d, carpellaiy scales cover the seeds. One-seeded fruits like those of butter-cups, etc., are liable to be mistaken for naked seeds. o49. Dehiscence. The fleshy pericarp is always indekiscenf. Its seeds are liberated only by its decay, or bursting in germination. So Hiso m many cases the dry pericarp, as the acorn. But more tlio dry fruit, when arrived at maturity, opens in some way, discbargin.^ Its seeds. Such frmts are dehiscent. 550. Modes. Dehiscence is either valvular, porous, or circumscis- 8ile; m/.«/«r,when the pericarp opens vertically along the sutures forming regular parts called valves. These valves may separate quite to the base, or only at the top, forming teeth, as in chickweed. Wo notice four modes of valvular dehiscence, viz.: 1, Sutural, when it takes place at the sutures of any 1-celled peri- carp, as columbine, pea, 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 Wood, A
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, booksubjectpl
