CAPRIFOLIACEAE 271 



lets. The opposite leaves, which are mostly oval, are sessile or 

 connate or, rarely, nearly circular and on petioles up to 1/4 inch 

 long. Usually toward the end of branches 1 to 4 pairs of leaves 

 are connate or sometimes in whorls of 3, the uppermost pair 

 of which forms a broadly oval disk, the tips of which are obtuse 

 and the margins more or less constricted at the middle. The 

 blades of ordinary leaves are rounded or obtuse at the apex, 

 rounded or variously narrowed to the base, entire margined, 

 smooth and dark green above, but very glaucous beneath and 

 generally also more or less pubescent beneath. 



The flowers occur either terminally or in axils of upper 

 leaves. When axillary they are in clusters of 3 and when 

 terminal they are arranged in 1 to 4 whorls of 3 to 5 flowers 

 each. Blossoming occurs in late May and June, and the pale 

 yellow flowers are, rarely, swollen at the base. Fruit begins 

 to ripen late in July as a coral-red berry, about 14 inch in 

 diameter, which contains small, oval, flat seeds. 



Distribution. — The Grape Honeysuckle is a vine of woods 

 and stream banks and ranges from Ohio to Iowa and Missouri 

 and south to Tennessee. In Illinois, it is the most common of 

 the honeysuckles, ranging across the entire state from east to 

 west in the north and extending southward to Vermilion County 

 in the east and to ]\Iorgan County in the west. 



LONICERA CANADENSIS Marshall 

 Fly Honeysuckle Twinberry 



The Fly Honeysuckle, fig. 72, is an erect or sprawling shrub 

 2 to 4 feet high with stems which contain white pith and bear 

 glabrous branchlets. The leaves are ovate-oblong to elliptic, 

 mostly ll/^ to 4 inches long, up to lyi inches wide, acute or 

 blunt at the apex, and rounded or subcordate at the base. The 

 margin is entire and ciliate, and the surface is bright green 

 and glabrous above and beneath. 



The flowers, which begin to blossom early in May, are borne 

 in pairs on long, slender peduncles that rise from the axils of 

 leaves on branchlets of the current season. The greenish-yellow 

 flowers, about ^4 inch long, are distinctly swollen at the base. 

 Fruit matures in July as a reddish, ovoid berry, about 14 inch 

 in diameter, which contains usually 3 or 4 seeds. 



Distribution. — The Flv Honevsuckle is an inhabitant of 



