LESSON 20.] 



ITS KINDS. 



181 



I 



35.3. A Samara, or Kry-frilil, is cilhcr a nut or an adicnium, or any 

 other indehisceiit l"'-uit, luniislicd witli a winjr, like that of llic ^lapls 

 (Fig. 1), Ash (Fig. noO), and Ehu (Fig. 301). 



3.3 I. The Capsule, or Poil, is the general name for dry secd-vesgeb 

 -vvliieh p|)ht or burst open at maturity. 

 But several sorts of pod are distin- 

 guished by particular names. Two of 

 lliem belong to simple pistils, namely, 

 the Follicle and the Legume. 



355. The Follicle is a fruit of a simple 

 pistil opening along the inner suture 

 (307). The pods of the Pa^ony, Col- 

 umbine, Larkspur, Marsh-Marigold 

 (Fig. 302), and Milkweed are of this 

 kind. The seam along which 

 the follicle opens answers to 

 the edges of the pistil-leaf 

 (Fig. 251, 253). 



35G. The Legume or true 

 Pod, like the Pea-pod (Fig. 

 303), is similar to tiie follicle, only it opens by the outer as well as 

 the inner or ventral suture (307), that is, by what answers to the 

 midrib as well as by what answers to the united margins of the leaf. 

 It splits therefore into two pieces, which are called valces. The le- 

 gume belongs to ])lants of the Pulse family, which are accordingly 

 termed Lejuminosce, that is, leguminous plants. So the fruits of this 

 family keep the name of legume, whatever their form, and whether 

 they open or not. A legume divided across into one-seeded joints, 

 which separate when ripe, as in Tick-Trefoil (Fig. 304), is named a 

 Lament. 



357. The true Capsule is the \un\ of a compound pistil. Like the 

 ovary it resulted from, it may be one-celled, or it may have Jis many 

 cells as tjiere are carpels in its composition. It may discharge its 

 seeds tlirough chinks or pores, as in the Poppy, or burst irregularly 

 in some part, as in Lobelia and the Snapdragon ; but commonly it 

 splits open (or is dehiscent) lengthwise into regular pieces, called 

 v(di'es. 



FIC. 300. Samarn or kpy of the White A^h. 301. Samara of lli 



KIC. 3(>a Folliclo of Marsh-Marigoia (Calllia pnliislris). 



FIC. .T03. Lcgiimo of a Sweet Pea, ojioMcd. 



FlGu 304. Loiiiout or jdiiitoil lecuiiie uf Tick-'rri'f.>il | Ui'sinuWiiiiii;. 



.Viiicrican Elm. 



