THE HYBERNACLE OF PLANTS. 439 



6. Glandula, a little gland; is a kind of pap or teat, serving 

 for the excretion of some humour: its situation is commonly on 

 the petioles, the serratures of the leaves, or the tender stipulae. 



7. Pilus, a hair, is a sort of bristle, serving as an excretory 

 duct to the plants. 



CHAP. IX. 



OF THE HYBERNACULA OF PLANTS. 



THE Hybernaculum, winter -lodge, is that part of a plant 

 which encloses and protects the embryo, or future shoot, from 

 external injuries: it is of two kinds, viz. Bulbus, a bulb ; and 

 Gemma, a bud. 



1. A Bulb, is an hybernacle, placed on the descending caudex: 

 it is of various kinds, viz. a squamose bulb, when it consists of 

 imbricate lamella*, as in LiLiuM;...a solid bulb, when it consists 

 of a solid substance, as in TuupA;...a tunicate bulb, when it 

 consists of many tunics or coats, as in CEPA;...and an articulate 

 or jointed bulb, when it consists of lamella that are linked toge- 

 ther, as in Lathrje a,... Martin ia,... and Adoxa. 



2. Gemma, a bud, is an hybemacle placed on the ascending 

 caudex : it consists either of stipules, of petioles, of the rudiments 

 of leaves, or of cortical squamm\. 



Buds are of various kinds. In the generality of plants they 

 are jloriferous; that is, producing both leaves and flowers; 



* Thin plates or scales. Editor. f Scales of the bark. Editor. 



\ 



