THE ARTIFICIAL SYSTE5I OF LINN^US. 515 



998. The orders, in the first tliirteen classes of the Linnrean ar- 

 tificial system, depend on the number of styles, or of the stigmas 

 when tlie styles are wanting ; and are named by Greek numerals 

 prefixed to the word gynla, used metaphorically for pistil, as 

 follows : — 



Order 1. Monogynia embraces all plants of any of the first thir- 

 teen classes, Avith one style to each flower. 



2. DiGYNiA embraces those with tAvo styles. 



3. Trigynia, those with three styles. 



4. Tetragynia, those with four styles. 



5. Pentagynia, those with five styles. 



6. Hexagynia, those with six styles. 



7. Heptagynia, those with seven styles. 



8. OCTOGYNTA, those with eight styles. 



9. ExNEAGYNiA, those Avith nine styles. 



10. Decagynia, those with ten styles. 



11. DoDECAGYNiA, those AA'ith eleven or tAvelve styles. 



12. PoLYGYNiA, those Avith more than twelve styles. 



999. The orders of class 14, Didynmiiia, are only two ; namely, 



1. Gyjinospermia, meaning seeds nailed, the achenia-like 



fruits having been taken for naked seeds. 



2. Angiosperaiia, Avith the seeds evidently in a seed-A'essel 



or pericarp. 



1000. The 15th class, Tetradynamia, is also divided into tAvo or- 

 ders, Avhich are distinguished merely by the form of the pod : — 



1, SiLicuLOSA; the fruit a silicle (C21), or short pod. 



2. SiLiQuosA ; fruit a silique (620), or more or less elon- 



gated pod. 



1001. The orders of the IGth, 17th, 18th, 20th, 21st, and 22d 

 classes depend merely on the number of stamens ; that is, on the 

 characters of the fii'st thirteen classes, whose names they hkewise 

 bear : thus. 



Order 1. MoNANDRiA, Avith one stamen ; 2. Diandria, with two 

 stamens ; and so on. 



1002. The orders of the 19th class, Syngenesia, are six ; namely, 



1. PoLYGAMiA jeqxjalis, where the flowers are in heads 

 (compound flower, 394), and all perfect. 



