Ix INTRODUCTION TO BOTANY. 



1. Nayadece. Juss. — Potamophilecje. Richard. Fluviales, 

 Lind. Potame^ DC. Under this family, are tlie 



Gcn.^ Potamogeton. Zannichellia. This family is nearly 

 related to the next. 



2. Aroidece. (Juss.) or Arum Tribe. 



Gen. Arum. 'Acorus. The roots of this family abound 

 with fecula, which may be used as an article of food, when 

 deprived of its acrimony by roasting, or washing. 



3- Typhce. (Juss.) Typhacese. DC. 



Gen. Typha. Sparganium. 



4. Cypcracece. (Juss. ) or Sedge Tribe. 



Gen. Schoenus. Rhyncospora. Eleocharis, (Isolepis.) 

 Scirpus. Eriophorum. Carex. 



This family is very natural, and has close affinity to the 

 grasses, 



5. Graminea. 



The Grasses, Agrostis, Alopecurus, &c. One of the most 

 natural families of the vegetable kingdom. This family is distin- 

 guished from the Cyperaceee, by its cleft leaf sheath : the sheath 

 of the Cyperaceoe is entire : there is also only one flower scale 

 in the Cyperacese, two in the Gramineae, or Grass Tribe. 



CLASS III. 



Monoperigy7iy, or Monocot. and Perigynous. 



6. Juncece, or Rush Tribe. 

 Gen. Juncus. Luciola. 



7. AlismdcecE. Part of Juss. Junci. 



Gen. Butomus. Alisma. Sagittaria. Triorlochin. 



8. Colchicacede, DC. Colchicum Tribe. Part of Junci. 

 Juss. 



Gen. Colchicum. Narthecium. 

 • An active principle called verc'itria, found in the colchicum. 



9. AsparagmecB. 



Gen. Asparagus. Paris. Convallaria. Ruscus. Tamus. 

 None of the plants in this family are poisonous. 



10. Lilidcet^. Lilia and Asphodeli. Juss. 



' i. e. Genera. 



