SUB-CLAS3 II. DICOTYLEDON* S. 175 



Salix amygdaloides Anders. Almond-leaved Willow. Com- 

 mon along streams, etc. Decorah, Fort Atkinson (a form 

 approaching S. nigra). Observed at Canoe creek, both forks 

 of Bear creek, Bluffton and Kendallville. 



Salix lucida Muhl. Shining Willow. Locally common in wet 

 grounds. Ft. Atkinson, Freeport (some are small trees). Ob- 

 served at Canoe creek and Bluffton. 



Salix alba L. White Willow. Occasionally naturalized. 

 Decorah (Savage). 



Salix cordata Muhl. Heart-leaved W T illow. Very common 

 in low grounds. Kendallville, Hesper. Observed at Canoe 

 creek, etc. 



Salix missouriensis Bebb. Missouri Willow. (Probably 

 included with S. cordata by Gray.) In low grounds, not rare. 

 Decorah, Hesper. 



Salix interior Rowlee.(#. longifolia Muhl.) Sandbar Wil- 

 low. Common on sandbars, etc. Decorah. Observed at Hes- 

 per, Canoe creek, and Ft. Atkinson. 



Salix petiolaris J. E. Smith. Slender Willow. In low 

 grounds. Not common. Calmar. 



Salix discolor Muhl. Glaucous Willow, Pussy Willow. Com- 

 mon in bogs, etc. Decorah (Savage), Kendallville, Canoe creek, 

 Hesper, etc. 



Salix ericocephala Michx. Pussy Willow. (Included with the 

 preceding by Gray.) Rather common, in low grounds. Decorah, 

 Hesper. (The latter may be a hybrid, S. humilis-\-S. discolor.) 



Salix humilis Marsh. Prairie Willow. Common in dry open 

 places. Calmar, Decorah, north fork of Bear creek. Also ob- 

 served at Canoe creek, Moneek and Ft. Atkinson. 



Order 2. Juglandales. 

 Family Juglai.daccce. 



Juglans nigra L. Black Walnut. In rich grounds. Decorah 

 (Savage). Also observed at Hesper and Moneek. 



Juglans cinerea L. Butternut. Rather common, on lower 

 slopes, etc. Decorah. Also observed at all the other localities 

 excepting Calmar. 



