KATURAL HISTORY, 
299 
The calyptra, or coif, is a thin, conical, 
membranous cover to the parts which ge- 
nerate fruitage. 
The volva, or purfe, is a thick covering 
inclofing feveral fpecies of mulhroom pro- 
dudions. 
The Corolla, petal or flower-leaf, is 
one of thofe which form the flower, and 
furround the generative parts of the plant 
itfelf. Of thefe there are the petal, and the 
ne£larium : they are either entirely one, as 
the convolvulus, or formed of many pieces. 
The petal is generally diftinguilhed by the 
beauty of its colour, and the neftarium by 
Containing thofe fweet juices which the bees 
change into honey. The corolla is fome- 
times without a footftalk, as the martegon. 
The Stamen is the male part of flow- 
ers, and confifts of the filament and the 
fummit or anthtra, as the paflion-flow- 
er. 
The filament fuftains the anthera, apex, 
or fummit, and is either formed like a thread, 
or lhaped like an awl. 
The anthera, apex, or fummit, is the 
eflential part of the ftamina, and contains 
the male organ of generation. It confifts of 
a little bag, of one or more cavities, con- 
taining the male farina. 
The PoiNTAL includes the female parts 
of flowers, and confifts oi i\\& ^crmfifiyle, 
and fiigma. 
The 
