. The botanical class-book, and flora of Pennsylvania, designed for seminaries of learning and private classes. icarp [peri around, karpos fruit,) or seed vessel, andthe seeds. 72 PERICARP. PERICARP. 226. The pericarp consists of three different parts, theepicarp, the outer integument or skin; the endocarp, or shell,and the sarcocarp, the intermediate fleshy or pulpy , in the Peach, Plumb, and Cherry, the outer skin is theepicarp, the hard shell which contains the seed is the endocarp,and the pulpy, fleshy mass between the two, the sarcocarp. 227. The fruit, when mature, often remains
. The botanical class-book, and flora of Pennsylvania, designed for seminaries of learning and private classes. icarp [peri around, karpos fruit,) or seed vessel, andthe seeds. 72 PERICARP. PERICARP. 226. The pericarp consists of three different parts, theepicarp, the outer integument or skin; the endocarp, or shell,and the sarcocarp, the intermediate fleshy or pulpy , in the Peach, Plumb, and Cherry, the outer skin is theepicarp, the hard shell which contains the seed is the endocarp,and the pulpy, fleshy mass between the two, the sarcocarp. 227. The fruit, when mature, often remains closed, as inthe Acorn, Apple, Grape, &c, when it is said to be other cases it seperates wholly or partially into severalpieces, and discharges the seed, when it is said to be dehiscent. 228. Regular dehiscence always takes place in a verticaldirection, by the opening of one or both sutures, or by thedisunion of confluent parts. The pieces into which a distinctpericarp separates, are called its valves. The several varietiesof dehiscence have received the following names : 112. 113. 1. Locclicidal (Fig. 112,) when the pericarp bursts vertically, the dorsal sutureopening directly into the cell, the parietal placentae in this case being borne direct-ly in the middle of each valve, as in the Lily and Rockrcse (Helianthamum). 2. Septicidal (Fig. 113,) when the pericarp opens longitudinally through thedissepiments, the placenta) occupying the margins of the valves, as in the Mallows, 3. Septipragal (Fig. 114,) when the dessepiments remain coherent to the axis,and separate from the valves,, as in the Morning Glory. 4. The pericarp may also open at one or both sutures of a single carpel, when itis called sutured, as in the Pea; or it may be porous at the apex, as in the Chick-weed, Tobacco, and Primrose; and occasionally by mere points or pores, as in thePoppy. 229. An irregular dehiscence, called circumscissile, occursin such fruits where the pericarp divides tra
Size: 2897px × 863px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade, booksubjectbotany, booksubjectplants
