. The elements of structural botany [microform] : with special reference to the study of Canadian plants, to which is added a selection of examination papers. Plant anatomy; Botany; Plantes; Botanique. 148 ELEMENTS OV STRUCTURAL BOTANY. Illl :t. V example. Til AVhcat tlio fruit differs from t]iat of Buttercup in liaTini; a fitting and adhfrent j)ericarp. 8uch a fruit is callcil ;i airiiopd^ or (/rain. A 7i?d is usually syncarpons, Avitli a hard, dry pericarp. A iniKjed fruit, such as that of the Maple (Fig. 208), is called a samara or keij. 242. A fruit which splits up when ripe into
. The elements of structural botany [microform] : with special reference to the study of Canadian plants, to which is added a selection of examination papers. Plant anatomy; Botany; Plantes; Botanique. 148 ELEMENTS OV STRUCTURAL BOTANY. Illl :t. V example. Til AVhcat tlio fruit differs from t]iat of Buttercup in liaTini; a fitting and adhfrent j)ericarp. 8uch a fruit is callcil ;i airiiopd^ or (/rain. A 7i?d is usually syncarpons, Avitli a hard, dry pericarp. A iniKjed fruit, such as that of the Maple (Fig. 208), is called a samara or keij. 242. A fruit which splits up when ripe into several one-seeded pieces is called a schizocarp. The samara of the Maple is a goodexample; also the fruit of Catnip, Avhich splits up I'' at maturity into four one-seeded i)ortions. Fig. 200. xhe fruit of Mallow is another common ^''-2^'^- instance. The separate portions in these cases are called mericarps. In some leguminous plants the pod breaks up transijersehj into one- seeded portions, giving rise 111 to the form called a loment. 243. A special schizocarp is that of Umbelliferous plants (Fig. 209). Here the Fig. 208. frnit splits into two mericarps, each attached, however, by a fibre to the axis. Such a fruit Fig. 209, jg called a creinocarp. 244. The Seed. The seed has already been described as the fertilized ovule. During the formation of the carpels, the ovules arise as outgrowths from the inner surface of the ovary, mostly, as has been pointed out, upon the man/ins of the carpellary leaves, but occasion- ally als(^ upo]i the surface crenerally, At first the ovule Fig. 206.—Silicle ca atock. Fig. 207.—Pyxis of Purslane. Fig. 208.—Samara of ;Maple. Fig. 209.—Cremocarp of an Umbellifer; a, the fibre attaching the meriearp to the axis. (Thome.). 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 S
Size: 884px × 2825px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., book, bookcentury1800, booksubjectbotany, booksubjectplantanatomy
