CATALOGUE OF PLANTS. 55 



1855, and now has a diameter of 3 feet. On an island in the 

 same river, near the Cascade and Caledonia line, stands a tree a 

 little over 60 years old, which was measured in 1897 by Carl 

 Johnson, and found to have a circumference of 12 feet, 8 

 inches (C.F.Holt). 



441. P. treinuloides Michx. American Aspen. 



Woods and marshes; common. April. 



SALIX L. Willow. Osiee. 



442. S. ALBA viTJELLiNA Koch. White Willow. 

 Originally from Europe. Mid-May. 



443. S. amygdaloidcs Anders. 



Along streams and in marshes; frequent. Mid-May-Mid-June. 

 There are trees about Reed's Lake which have a diameter of 

 18 inches. Pistillate and staminate flowers in the same catkin 

 have been found on trees which grow in the marsh between 

 Reed's Lake and Fisk Lake. 



444. S. Candida Fluegge, Hoary Willow. 

 Common in sphagnous bogs. Mid-April-Mid-May. 



445. S. Candida x cordata Bebb. 



Low ground; occasional. Mid- April-Mid-May. 

 Orchid Swamp; Plaster Creek; Mud Lake, Wright. 



440. S. cordata Muhl. Heart-leaved Willow. 

 In wet soil; common. Mid-April-Mid-May. 

 Narrow leaved forms are common, 



447. S. discolor Muhl. Glaucous Willow. 

 Common in marshes. April. 



448. S. glaucophylla Bebb. 



Along streams; occasional. Mid- April-Mid-May. 



East St. at Coldbrook Creek and at Silver Creek; Plaster Creek 



at Burton Ave, 



449. S. humilis Marsh. Prairie Willow. 

 Common in dry soil. April. 



