. Plant life, considered with special references to form and function. Plant physiology. 240 PLANT LIFE. guishal)le into (i) an enlarged basal part, the ovularv,* con- taining the o\'ules, surmounted Ijy (2) a slender jjarl of vari- able length, the slvle, which is terminated by (3) a rough, sticky, or branched part, the siigma. (See figs. 250, 258.) 336. The stigma may take tlie form of a knob, a ridge, a straight or wa\'y line, or be lobed or branched. However compact, it is usually roughened by the jjrolongation of its surface cells into rounded, pointed, or hairdike exten- sions (figs. 248
. Plant life, considered with special references to form and function. Plant physiology. 240 PLANT LIFE. guishal)le into (i) an enlarged basal part, the ovularv,* con- taining the o\'ules, surmounted Ijy (2) a slender jjarl of vari- able length, the slvle, which is terminated by (3) a rough, sticky, or branched part, the siigma. (See figs. 250, 258.) 336. The stigma may take tlie form of a knob, a ridge, a straight or wa\'y line, or be lobed or branched. However compact, it is usually roughened by the jjrolongation of its surface cells into rounded, pointed, or hairdike exten- sions (figs. 248, 283), which fre(juently secrete a sticky fluid. Jts purpose is to secure the adhesion of the pollen spores brought to it by various agents, among the most important of which are the wind and insects. 337. The style may be tliick or slender, long or short, branched or un- branclied, hollow or solid. It is fre- quently wanting, so that the stigma is said to be sessile upon the ovulary. 338. Simple and compound pistils. fro. the°:«,l";^ c^ -^^'h^n scN-eral carpels are present in totLi'^-X ^^'^- o"e fl°^^-e'' t'^ey "«^' fo"" "^ »'^'"y '"SratST'tiJlSd^i^ sepai-ate su„i,le as there are car-. els. If numerous, the axis -will be peneti making its wav down the ^^. style. Magnified 175 diam.— t'^' .uter strasXurger. enlarged or elongated to accommodate them. (See ^| 360.) Instead of forming separate pistils. '"This part early callcil tlle ovary (a name wliich is still in i;eneral use), meaning the organ which pioduces eggs, under the impression that the ovules (= little eggs) were like the eggs of birds, an idea whieh was further carried out in the name allnatuii given to the food stored in the seed. {See ^11 403, 407. ) To avoid confusion with the true ovarN (' ;S8), in which the real egg is produced (11 387), T here .suggest the name oz-u- 1,11\—, the organ wdlich jiroduces ovules. 'I'he wcu'd ovule, though as
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