CONSPECTUS. 303 



ORDER XLI. 



melastomace^, oe melastomes. 

 Genus : 



1. Mhexia, L. Deer-Grass. Meadow Beauty. Species 3. 



ORDER XIiII. 



lytheaceie, or loosesteifes. 

 Geneea : 



1. Ammannia, Houst. Species 2. 



2. Ziythrum, L. Loosestrife. Species 4. 



3. Nesoea, Juss. Swamp Loosestrife. Species : 



Nesoea verticiUata, H. B. K. 



4. Cuphea, Jacq. Species : 



Cuphea viscosissima, Jacq. Clammy Cuphea. 



ORDER XLIII. 



ONAGEACB^, OE EVENING PeIMEOSES.. 



Geneea : 



i. EpUohium, L. "Willow-Herb. Species 6. 



2. CEnothera, L. Evening Primrose. Species 9. 



3. Gaura, L. Species 2. 



4. Jussicea, L. Species : Jussicea decurrens, D. C. 

 6. l/udwigia, L. False Loosestrife. Species 1. 



6. Circcea, Toum. Enchanter's Nightshade. Species 2. 

 !r. JProserpinaca, L. Mermaid-weed. Species 2. 



8. MyriophyUum, Vaill. Water-Milfoil. Species 6. 



9, Sippuris, L. Mare's-Tail. Species : 



Hippuris vulgaris, L. 



ORDER XLIV. 



loasaoe^, oe xoasads. 

 Genus : 



1. Mentzelia, Plum. Species: Mentselia oligosperma, Nutt. 



