66 



GENERA OF CLASS II. DIANDRIA, 



CHAP. V. 



OF THE SECOND CLASS, DIANDRIA. 



THIS class consists of such plants as bear bisexual flowers, fur- 

 nished with two stamina. The orders are three, viz. 



Order* 1. Monogynia, comprehending such plants as have but 

 one style. This order contains forty-one genera, distinguished 

 into, 1 . Such as have regular corolla, one-petalled, flowers inferi- 

 or, of which there are eleven, viz. Nyctanthes...Jasminum (jas- 

 mine)... Ligustrum (privet)... Phillyrea...Olea (olive)... Chio- 

 nanthus (snow-drop tree) . . . S yring a . . .Eranthemum .. . Wulfenia 

 . . . Pimelea . . . and Galipea. 2. Such as have irregular corolla, 

 and the fruit angiospermous ; of which there are thirteen, viz. 

 Veronica (speedwell)... PjEderota ... Justicia ... Dianthera... 



Gratiola....Schwenkia Pinguicula (butter-wort).... Utricu- 



laria (bladder-wort) Calceolaria (ladies' slipper). .. .Cyrtak- 



DRA...BAEA...GHiNiA...and Sciuris. 3. Such as have an ir- 

 regular corolla, and the fruit gymnospermous ; of which there 

 are nine, viz. Verbena (vervain)... Lycopus, (water horehound)..* 

 Amethystea....Cunil a.... Ziziphora....Monarda.... Rosmarinus 

 (rosemary)... Salvia (sage)... and Collinsonia. 4. Flovjers infe- 

 rior, polypetalous ; of which there are four, viz. Fontanesia... 

 Lithophyla ... Linociera... and Dialium. 5. Flowers superior, 

 Monna./.Circjea (enchanter's nightshade)... and Globba. 6. Flow- 

 ers apetalous, ANCisTRUM...and Aruna.. 



Order 2. Digynia, comprehending such plants that have two 

 styles. This order contains but two genera, viz. Anthoxa^thum 

 (vernal grass)... and Crypsis. 



Order 3. Trigynia", comprehending such plants that have three 

 styles. There is but one genus of this order, viz. Piper. 



