. The botanical class-book, and flora of Pennsylvania, designed for seminaries of learning and private classes. 187. A polypetalous corolla also may be regular or irrov-ular. The lower part of the petal is called the clam, undwhen this is well marked, they are said to be unguiculat?;the upper and spreading portion is termed the lamina orborder. Regular polypetalous corollas have received the followingnames : 1. Cruciform, (Fig. 94,) when there are four petalsspreading at right angles to each other in the form of across,as in the Mustard, Radish, Turaip. Plants with this corollaconstitute
. The botanical class-book, and flora of Pennsylvania, designed for seminaries of learning and private classes. 187. A polypetalous corolla also may be regular or irrov-ular. The lower part of the petal is called the clam, undwhen this is well marked, they are said to be unguiculat?;the upper and spreading portion is termed the lamina orborder. Regular polypetalous corollas have received the followingnames : 1. Cruciform, (Fig. 94,) when there are four petalsspreading at right angles to each other in the form of across,as in the Mustard, Radish, Turaip. Plants with this corollaconstitute the Natural Order Cruciferae, corresponding to theclass Tetradynamia in the Linnean arrangement. 2. Rosaceous (like the rose. Fig. 95,? when the ccrolls F 62 COROLLA. is regular, consisting of five or more petals, attached to thereceptacle with little or no claws, as in the Rose, Apple, andCherry. 95. 96. ^J
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Keywords: ., bookcentury1800, bookdecade, booksubjectbotany, booksubjectplants