554 DICOTYLEDONES. 



Lonicera (Honeysuckle). Shrubs, sometimes twiners. The 

 corolla in some species is considerably bilabiate (Fig. 591), with 4 

 lobes in the upper lip, and 1 in the under lip, but in others more 

 regular, tubular, or campanulate. The flowers are either borne in 

 capitate inflorescences, which are compound and formed of closely 

 compressed 3-flowered dichasia (sect. Oapnfolium), or in dichasia 

 with 2 flowers (the terminal flower is wanting). The ovaries and 



FIG. 591. Lonicera. 



fruits coalesce in some (sect..Xylosteum). The opposite leaves in some 

 spec : es unite with each other and form a broad collar encircling the stem (Fig. 

 591). Above the primary bud 1-2 accessory buds are often found in the 

 leaf-axils. Diervilla (IVeigelia) ; with a 2-locular, 2-valved capsule. Symphori- 

 carpus (Snowberry) has an almost regular, funnel-shaped corolla ; a peculiar 

 feature is found in the ovary which has 4 loculi, the 2 median having many 

 ovules in 2 rows, all of which are aborted ; the 2 lateral ones, on the other 

 hand, each have only 1 ovule which is developed. Different forms of leaves 

 are frequently found on the same branch ; they are entire or lobed. 



