CONSPECTUS. 295 



ORDER XVII. 



drosekace^, or sundews. 

 Genus : 



1. Drosera, L. Sundew. Species 4. 



ORDER XVIII. 



parnassiace^, or tarnassiads. 

 Genus : 



1. Parnassia^Towin. Grass of Parnassus. Species Z. 



ORDER XIX. 



HYPERICACE^, OR ST. JOBN's-WORTS. 



Genera : 



1. Ascyruniy L. St. Peter's- wort. Species 2. 



2. Hypericum^ L. St. John's-wort. Species 15. 



^ 3. Elodea^ Pursh. Marsh St. John's-wort. Species 2. 



ORDER XX. 



elatinace^, or water-peppers. 

 Genus : 



1. Elatine, L. Water-wort. Species: 



Elatine Americana^ Arnott. 



ORDER XXI. 



caryophyllace^, or pinkworts. 

 Genera : 



1. Dianthus^Jj. Pink. Carnation. Species: 



Diayithus Armeriay L. Deptford Pink. 



2. Saponaria, L. Soapwort. Species : 



Saponaria officinalis^ L. Common Soapwort. 



3. Yaccaria, Medi^k. Cow-herb. Species : 



Vaccaria vulgaris, Host. 



4. Silene, L. Catchfly. Campion. Sp)ecies 12. 



