•10 THE FLOWER. 



Sometimes these divisions are veiy evident, being but slightly 

 connected, while in other cases, all external marks of them dis- 

 appear. \^nien simple, it of course consists of a single carpel. 

 (Fig. 10.) 



78. The STYLE is that prolonged columnar part of the ovary, 

 or rather of each carpel, which bears the stigma at its top. The 

 Jiumber of the styles, when they are not wanting, always equals 

 llie number o( car[)els : but wiien the carpels are closely united, 

 the styles may be united also, into a single compound column, 

 or they may even then remain distinct. 



79. The STIGMA is the upper portion, or extremity, of the style, 

 extremely various in form, but usually globular. Like the ovary 

 ixiid style, it is either simple or compound. When it is com- 

 pound it consists of as many united lobes as there are carpels. 



80. The number of distinct styles (or of stigmas, when the 

 styles are wanting) constitutes the basis of the artificial orders, 

 into which the first thirteen classes of Linneeus are subdivided. 

 They are named from the Greek numerals prefixed to the ter- 

 mination gynia, {yvi'i], 57, Note,) as follows. 



Order 1. Monog^'nia, includes all the genera of plants in 

 either of the fii'st thirteen classes, with one style 

 to the flower. 



2. Digynia, with two styles to the flower. 



3. Trigj'nia, with three styles. 



4. Tetragynia, with four styles. 



5. Pentagynia, with five styles. 



6. Hcxagynia, with six styles. 



7. Heptagynia, with seven styles. 



8. Octog}'nia, with eight styles. 



9. Enneagynia, with nine styles. 



10. Decagynia, with ten styles. 



11. Dodecagynia, with eleven or twelve styles. 



12. Polygynia, with more than twelve styles.* 



* TliH orders of the remaining classes are founded upon characters not depend- 

 \i\% upon the pistil, and are as follows: — 



The orders of class 11, Didynamia, are only two; 



1. Gymnospennia, with seeds appai-ently naked. 



2. .;\jigiospennia, with seeds evidently in a seed-vessel, or pericarp. 



