CORNACEAE 217 



the fall. The fruit, which matures from early in July until 

 October, is a white, flattened globe about one-third inch in 

 diameter with more or less pulpy flesh and a dark stone, which 

 is variable in size and shape, nearly smooth, and only faintly 

 marked on the surface with a longitudinal groove around its 

 widest diameter. 



Distribution. — This dogwood, which prefers wet, sandy 

 soils, ranges from Ontario to Manitoba and south to Pennsyl- 

 vania, Indiana and Illinois. In our state, it has been reported 

 with authority only from the vicinity of Lake Michigan in 

 Cook County. It is very closely allied to C. stolonifera and 

 may be found more widely distributed, if collectors will care- 

 fully observe the woolly under surfaces of leaves. 



CORNUS STOLONIFERA Michaux 

 Red-Osier Red-Dogwood 



The Red-Osier, fig. 57, is an erect or spreading shrub, the 

 stems of which arise from underground stolons and grow to 

 a height of 4 to 10 feet. Its smooth branches are purplish 

 to bright red, and the branchlets, at first greenish and pu- 

 bescent, become smooth and purplish or bright red. The oppo- 

 site leaves are ovate to oval, 1% to 3 inches long by ^ to 

 1^ inches wide, acute or acuminate at the apex, narrowed 

 or rounded at the base, short-pubescent above with appressed 

 hairs, and densely mealy and closely pubescent beneath, so 

 that the lower surface appears grayish. 



The inflorescence is a flat-topped cyme commonly ^ to 1]/^ 

 inches wide. The flowers blossom in the latter part of May 

 and the early part of June, and fruit matures in July and 

 August as a white, pulpy, flattened-globose drupe about 14 

 inch in diameter, which contains a dark stone sometimes 

 marked with a faint longitudinal groove. 



Distribution. — The Red-Osier prefers wet, swampy situa- 

 tions and sandy soils and it ranges from Newfoundland to 

 ^ ukon and south to Virginia, Tennessee and California. In 

 Illinois, it is statewide in distribution but most abundant in 

 the sandy regions of Cook and Lake counties. It also occurs 

 frequently in sands in Will, Kankakee and Tazewell counties 

 and has been sparingly reported in many other places, some 

 of them in the southernmost tip of the state. 



