. Class-book of botany : being outlines of the structure, physiology and classification of plants : with a flora of the United States and Canada . Botany; Botany; Botany. 114 PERICARP. 556. The achenium is a small, dry, indehiscent pericarp, free from tte one seed which it contains, and tipped with the remains of the style (buttercups, Lithospermum). 557. The double achenium of the Umbeliferse, supported on a carpophore is called cremocairp. The 2-carpeled achenium of the Compositae, usually crowned with a pappus, is called cypsela. 558. The aohenia aee opieit mistaken for seeds. In the Labiat
. Class-book of botany : being outlines of the structure, physiology and classification of plants : with a flora of the United States and Canada . Botany; Botany; Botany. 114 PERICARP. 556. The achenium is a small, dry, indehiscent pericarp, free from tte one seed which it contains, and tipped with the remains of the style (buttercups, Lithospermum). 557. The double achenium of the Umbeliferse, supported on a carpophore is called cremocairp. The 2-carpeled achenium of the Compositae, usually crowned with a pappus, is called cypsela. 558. The aohenia aee opieit mistaken for seeds. In the Labiatas and Bor- rageworts they are associated in fours (312). In Geum, Anenaone, etc., they are collected in heads. The rich pulp of the strawberry consists wholly of the over- grown receptacle, which bears the dry aohenia on its surface. (440).. 484 43T 48S 439 4S2, Aohenia of Anemone thaliotroides. 433, Cromocai-p of Arohangclica officinalis, its hnlyej {merooarps) separated anil suspended on tlio carpophore. 434, Cypsela of Tliistle with its plumous pappus. 435, TJti'iole of Clionopodium (pigweed). 436, Cavyopsis of Wheat. 43T, Samara of Elm. 438, Glans of Beech. 439, Drupe of Prunus. 410, Fruit of Fragaria Indica, u fleshy torus like the strawberry. 559. The utricle is a small, thin, pericarp fitting loosely upon its one seed, and often opening transversely to discharge it (pigweed, prince's feather). 560. Cabyopsis, the grain or fruit of the grasses, is a thin, dry, 1- seeded pericarp, inseparable from the seed. 561. Samara ; dry, 1-seeded, indehiscent, furnished with a mem- branous wing or wings (ash, elm, maple). 562. Glans or nut ; hard, dry, indehiscent, commonly 1-seeded by suppression (§ 545), and invested with a persistent involucre called a cupule, either solitary (acorn, hazelnut) or several together (chestnut, beechnut). 563. Drupe, stone-fruit; a 3-coated, 1-celled, indehiscent pericarp, exemplified in the cherry, peach. The outer coat (epidermis) is called the epi
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