84 AN INTRODUCTION 



and farther asunder/ The bottom of the cavity moist 

 with a melleous liquor, including the receptacle. 



COROLLA. Termed papilionaceous, unequal; the 

 petals expressed by distinct names, viz. 



VEXILLUM, the standard, a petal covering the rest, 

 incumbent, greater, piano-horizontal, inserted by its 

 claw in the upper margin of the receptacle, approach- 

 ing to a circular figure when it leaves the calyx* and 

 nearly entire ; along it, and especially towards its 

 extremity, runs a line, or ridge, that rises up, as if 

 the lower part of the petal had been compressed ; the 

 part of the petal next to the base approaching to a 

 semicylindric figure, embraces the, parts that lie un- 

 der it. The disk of the petal is depressed on each 

 side, but the sides of it nearest the margin are reflex- 

 ed upwards. Where the halved tube ends, and the 

 halved limb begins to unfold itself, are two concave 

 impressions prominent underneath, and compressing 

 the wings that lie under them 



AIM:, the wings, two fcqual petals, one at each 

 side of the flower, placed under the vexillum ; in- 

 cumbent, with their margins .parallel, rounuish or 

 oblong, broader upwards, the upper margin straight- 

 er, the lower spreading more into a roundness ; the 

 base of each wing bifid, the lower division stretching 

 out into a claw, inserted in the side of the n ceptacle, 

 and about the length of the calyx; the upper shorter 

 and infixed. 



CAIIINA, the keel, the lowest petal, often bipartite, 

 placed under the vexillum, and between thje alae, 

 boat-shaped, concave, compressed on the sides, set 

 like a vessel afloat, mutilate at the base, the lower 

 part of which runs into a claw of the length or the 

 calyx and inserted in the receptacle, but the upper 

 and side laciniae are interwoven with that part of the 

 alae that is of the same shape. The form of the sides of 

 the carina is much like that of the alae ; and so also is 

 their situation, except that they are lower, and stand 

 within them. The line that forms the carina or keel 



