26 
STUDY OF BOTANY. 
As the terms here enumerated will furnish a future communication 
I shall forbear the explanation of them in the present article, but 
proceed on with the 
Hybernacula of Plants .—The hybemaculum or winter lodge is 
that part of a plant which incloses or protects the embryo, (future 
shoot) from external injuries, it is of two kinds, viz. 
I. Bulbus, ahulh, is an hyhernacle placed on the descending cau- 
dex, it is of various kinds, namely, 
1 Squamose, consisting of imbricate lamellae (thin scales) as in 
Lilium. 
2 Solida, consisting of a solid substance, as in Tulipa. 
3 Tunicate, consisting of fnany tunics (coats) as in Cepa. 
4 Articulate, consisting of lamellae that are joined together as in 
Adoxa. 
II Gemma, a bud is an hybemsacle placed on the ascending caudex 
it consists either of 
1 Stipulse, appendages to the leaves. 
2 Petioles, footstalks to the leaves. 
3 Cortical squamea. scales of the hark, 
4 Or Rudiments of the leaves. 
Of the Fulcra of Plants .—Fulcrum or prop, is a term used to 
express those small parts of plants, the chief use of which is to 
strengthen and support them. There are seven kinds of Fulcra, viz. 
1 Stipula is a scale or small leaf, stationed on each side of the 
base of the petiols, (leaf-stalk) or pedunculus (flower-stalk) when 
they are first appearing as in plants that produce papilionaceus 
(butterfly-shaped) flowers. 
2 Bractea, a floral leaf, so called when it differs from the rest in 
colour and form, and always close to the flower. 
3 Spina, a thorn, is a kind of sharp weapon, or armature proceed¬ 
ing from the wood of the plant. 
4 Aculeus, a prickle, is the same sort of armature proceeding from 
the cortex (outer bark) only. 
5 Cirrhus, a clasper or tendril^ is a filiform (thread shaped) spiral 
band, by which a plant fastens itself to any other body. 
6 Glandula, a little gland, a kind of pap, or teat, serving for the 
excretion of some humour. 
7 Pilus, a hair, is a sort of bristle serving for an excretory dust to 
the plants. 
Of the Sex of Plants .—Plants in respect of sex take their denomi¬ 
nations from the sex of their flowers, viz. 
1 Hermaphrodite plants, are such as upon the same root-bear 
