AND VOLVA. 203 



membranous part which he there calls perichatium is 

 strictly analagous indeed to the calyptra^f. 151, 152 b, 

 or veil of real mosses, esteemed by him a kind of ca- 

 lyx ; but as I presume with Schrebcr, to reckon it 

 rather a corolla, and Hedwig once thought the same, 

 and as Jungermannia has more or less of a real calyx 

 besides,y: 152 a, see EngL Bot. t. 771, &c., I would 

 no longer apply the term perich^tium to this genus at 

 all. 



The part called calyptra being removed from tte 

 list, as being a corolla, the penchatmm takes its 

 place among the seven kinds of calyx. We lay less 

 stress upon this coincidence than Linnseus might 

 have done, when, according to the fashion of the 

 times, he condescended to distribute his immortal 

 Philosophia Botaniea into 12 chapters and 365 sec- 

 tions, and reckoned seven parts of fructification as 

 well as seven species of calyx, 



7. Volva, f. 153. Wrapper, or covering of the Fungus 

 tribe, of a membranous texture, concealing their 

 parts of fructification, and in due time bursting all 

 round, forming a ring upon the stalk, as in Jgaricus 

 procerus, Soxuerb. Fung. t. 190, and A. campestris, 

 the Common Mushroom, t. 305 ; such at least is the 

 original meaning of this term, as explained in the Phil. 

 Bot. ; but it has become more generally used, even 

 by Linnseus himself, for the more fleshy external cov- 

 ering of some other Fungi, which is scarcely raised 

 out of the ground, and enfolds the whole plant when 

 young, / 154. See Agarieus volvaceus, t. 1, and 



