10 CALYX. 



explanation of these terms will be given under the 

 head of Stamens.) The Fir is an instance of the 

 former kind, fig. 2, pi. 6 ; and the Hasel of the 

 latter, fig. 3, pi. 2. 



4. The Sheath, which opens at the side, as the 

 corolla bursts forth, as in the Snow-drop, (Galan- 

 thus) fig. 4, pi. 2 ; and Arum, fig. 3, pi. 6. 



5. The Husk, or Glume, the chaffy calyx of 

 Corn and the grasses, fig. 5, pi. 2. 



It consists of one valve in Rye-grass (Lolium) ; 

 of two in Oat-grass, (A vena) fig. 4, pi. 6 ; or of 

 three in Panic-grass, (Panicum) fig. 5. The valves 

 are unequal in Avena, fig. 4 ; equal in Foxtail- 

 grass, (Alopecurus) fig. 6. 



These valves are often furnished with awns or 

 beards, as in Wheat-grass, (Triticum) fig. 7. 



6. The Fo'ichcPtiiwi, or scaly sheath, invest- 

 ing the fruit stalks of Mosses, fig. 6, pi. 2. 



7. The Volva, or Curtain, covering that part 

 of the plant, (the under part) in which the fructi- 

 fication is contained, as in some species of mush- 



