NOMENCLATURE OF THE FLOWER. 77 



GLUME OR HUSK. 



16. The glume or husk is said to differ in two points ; 

 the number of its valves, and the number of flowers 

 contained in each husk. In the first respect, they are 

 said to be one-valved, two-valved, or many-valved ; and 

 in the second, one-flowered, two-flowered, or many- 

 flowered, according to the number of flowers in each. 



a. One-valved when it consists of only one scale, as in the rye- 

 grass. 



b. Two-valved when it consists of two scales, as in the hair- 

 grass. 



c. Many-valved having more than two scales, as in the millet, 

 panic-grass, and panicled uniola. 



VEIL OR CALYPTRA. 



17. The veil or calyptra is the subject of a few 

 systematical appellations, depending on attending pe- 

 culiarities. The most common are, 



a. Acuminate where it is pointed, as in the bryum. 



b. Caducous falling off yearly, as in the bauxbaumia. 



c. Conical appertaining to a conical figure, as in most mosses. 



d. Complete surrounding the whole of the top of the capsule. 



e. Dimidiate covering only half the top of the capsule. 



f. Dentated toothed in the margin, as in the encalypta ciliata. 



CURTAIN OR VOLVA. 



18. The curtain has only two characteristic terms 

 applied to it, and these depend on its situation as being 

 approximating or remote. 



a. Approximating when it is situated on the stem of the fungu 

 near the cap. 



b. Remote when it is situated at a di&tance from the cap. 



H 2 



