318 PRACTICAL BOTANY. 



12. ItysaniheSfHai. Species :Ili/santhesgratioloides,Beiith. 



13. Micranthemum, Rich. 



MkrarUhemum Micrantha, Rich. {Hemianthus mi- 

 cranthemoides, Nutt.) 



14. Limosella, L. Mudwort. Species: 



XiimoseUa aquatica, L. Var. Tenuifolia, 



15. Synthyris, Bentb. Species : 



Synthyris Soughtoniana, Benth. 



16. Veronica, L. Speedwell. Species 12. 



17. Buchnera, L. Blue-hearts. Species: 



Suchnera Americana, L. 



18. Seymeria, Pursh. Mullein-Foxglove. Species : 



Seymeria macrophylla, Nutt. 



19. Gerardia, L. Species 6. 



20. Dasystoma, Raf. Yellow Foxglove. Species 5. 



21. Castitteja, Mutis. Painted-cup. Species 3. 



22. Schwalbea, Gron. Chaff-seed. Species: 



Schwalbea Americana, L. 



23. Euphrasia, Tourn. Eye-bright. Species : 



Euphrasia officinalis, L. 



24. Mhinanthus, L. Yellow-Rattle. Species : 



lihinanthus Crista-galli, L. 



25. JPedicularis, Toum. Lousewort. Species 2. 



26. Melampyrum, Tourn. Cow-wheat. Species : 



Melampyrum, Americanum, Mx. 

 {Melampyrum pratense. Var. Americanum, Benth.) 



27. Oelsemium, Juss. Yellow Jessamine. Species : 



Gelsemium sempervirens. Ait. 



ORDER LXXV. 



Genera : 



1. Dianthera, Gron. "Water- Willow. Species : , 



Dianthera Americana,'L. 

 {Rhytiglossa pedunculosa, Nees.) 



2. Dipteracanthus, Nees. Species 2. 



