Ord. 1.] DIANDRIA MONOGYNIA. 3 



without prickles. Whorled branches acute, repeatedly forked, 



often fertile, as well as the axillary compound ones. Bracteasnone. 



Ponds, rare. . 9. Smaller and more compound than the others. 



MONANDIUA DIGYN1A. 



5. CALLlTRICHE. Water-stanvort. 



1. C. verna, C. aquatica, 11. 722. (Vernal W.) Leaves triple-ribbed; 



the uppermost crowded, obovate. Margin of the seeds obtuse. 

 Ditches and ponds. . 4 — 9. Floating. Fl. axill. sollt. monoecious. 

 *1. C. pedunculdta, C. autumnalis, Suppl. 2606. (Pedunculated C.) 

 Leaves linear, abrupt, uniform, single-ribbed. Seeds on a pe- 

 duncle, bluntly keeled at the back. 

 Ditch, Sussex. . 8. Fmmersed. Fruit more or less stalked. 



2. C. autumnalis, Suppl. 2732. (Autumnal W.) Leaves linear, 



abrupt, uniform, single-ribbed. Margin of the seeds membranous. 

 Clear pools. 0. 6 — 10. Fmmersed. Leaves membr. Fl. united. 



Class II. DIANDRIA. Stamens 2. 



Order I. MONOGYNIA. Style 1. 



* Flower inferior, of one petal, regular. 



6. LIGuSTRUM. Corolla 4-cleft. Berry with 4 seeds.— N.O. 



Jasmineje. 



7. FRA.XINUS. Cor. 0, or deeply 4-cleft. Capsule compress- 



ed, with 1 or 2 seeds. Some flowers without stamens. — 

 N.O. Jasmines. 



** Fl. inf., of 1 pet., irreg., with seed-vessels. 



9. VERONICA. Cor. wheel-shaped, deeply 4-cleft. Caps, of 



2 cells. — N.O. Scrophularin^. 



10. PINGUlCULA. Cor. ringent, spurred. Caps, of 1 cell. 



Col. 5-cleft N.O. Lentibularl<e. 



11. UTRICULiRIA. Cor. ringent, spurred. Caps, of 1 cell. 



Col. of 2 leaves. — N.O. Lentibulari^e. 



*** Fl. inf., of 1 pet., irreg., with naked seeds. 



13. L^COPUS. Cor. nearly equal. Stam. distant, simple. Seeds 



abrupt. — N.O. Labiat^e. 



14. SA.LVIA. Cor. ringent. Sta mens with a lateral stalk. — N.O. 



Labiate. 



**** Flowers superior. 



8. CIRCJeA. Cor. of 2 petals. Cal. in 2 segments. Caps, of 

 2 cells. Seeds solitary. — N.O. Onagrarle. 



