. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. Fig. 252. Dehiscence of azalea. Fig. 250. It is obviously 2-loculed, but the cap-sule has split down each side midway between thepartitions or dissepi-ments. That is, eachvalve contains half oftwo carpels. 313. In the capsuleof the castor-oil beanFig. 251. (Fig. 251), the three Pod of carpcls havc separated bean after dehis- j^^^ ^^^^ ^^j^^ ^^^ cence. each carpel must dehiscebefore the seed is liberated. Theouter prickly coat breaks away, usually in sixpieces. The large lobed carp
. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. Fig. 252. Dehiscence of azalea. Fig. 250. It is obviously 2-loculed, but the cap-sule has split down each side midway between thepartitions or dissepi-ments. That is, eachvalve contains half oftwo carpels. 313. In the capsuleof the castor-oil beanFig. 251. (Fig. 251), the three Pod of carpcls havc separated bean after dehis- j^^^ ^^^^ ^^j^^ ^^^ cence. each carpel must dehiscebefore the seed is liberated. Theouter prickly coat breaks away, usually in sixpieces. The large lobed carpels are then dis-closed. A similar dehiscence has taken place inthe azalea (Fig. 252), but here the seeds are lib-erated by the primary splitting of the pod, and thecentral shaft, with which the carpels were united,remains. The dissepiments are seen on the veryedges of the five valves. Each valve in the castor-bean and azalea represents a complete carpel. 313a. These two methods of dehiscence of compound pods (orcapsules) are characteristic types. The former (312) is known aslooulioidal dehiscence
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Keywords: ., bookauthorbai, bookcentury1900, bookdecade1900, booksubjectbotany
