BOTANICA. 
o 
from the flower; and it is called universal, if placed under the 
universal umbel, and partial, if placed under a partial umbel.*' 
3d. Amentum (a thong, meaning a catkin) when it con¬ 
sists of a great number of chaffy scales, disposed along a 
slender axis or common receptacle, which from its resem¬ 
blance to a cat’s tail, hath obtained the name of catkin; and 
these flowers have generally no petals: Sometimes the same 
amentum supports both male and female flowers, distinct, on 
the same plant, as in carpinus, &e.; sometimes the male and 
female flowers are removed from each other on the same 
plant, and the amentum supports only the male flowers, and 
the female flowers are enclosed by a perianthium, as in corj/- 
lus,juglans, fagus, &c.; and sometimes an amentum only 
supports male flowers on one plant, and female flowers on 
another plant, as salix, populus, &c. 
4th. Spatha (a sheath) being a sort of calyx growing from, 
the stalk, bursting lengthways, and protruding; a spadix,f or 
receptacle, supporting one or more flowers, which have often 
no perianthium; and consists either of one leaf, with a valve 
or opening on one side only, as in narcissus, galanthus, and 
tire greater number of spathaceous plants; or of two leaves, 
with two waives or openings, as in stratiotes, &c.; or is im¬ 
bricated, as in musa, &c. with one or two valves. 
5tli. Glum A (a husk) this chiefly belongs to corn and 
grasses, consisting of one, two, three, or more valves, folding 
over each other like scales, and frequently terminated by a 
long, stiff, pointed prickle, called the arista (beard or awn). 
6th. Calyptra (a veil or covering) the proper calyx to 
mosses; it is placed over the antherse of the stamina, resem¬ 
bling an extinguisher, a hood, or monk’s cowl. 
* See umbellate flowers under distinction of flowering* 
In umbellate flowers several want both the universal and partial involucrum ; as 
parsnip, herb-gerard, burnet-saxifrage, dill, &and some have only a partial 
involuerum, as shepherd' s-needle, chervel, master-wort, &c* 
f See spadix under receptaculum • 
