IHE FLORA OF SCOTT AND Mi SCATINE COI N'l'lES. 257 



752. Q.palustris, Du Roi. Pin Oak. 

 Along rivers ; frequent. 



753. {). imbricaria, Michx. Shingle Oak. 



Cedar T'w'p. and Offerman's Island. Several trees ai 

 place. 



SALICACEiE. 



Salix, Tourn. \\ r illo\v. 



754. S. nigra, Marsh. Black Willow. 

 Along streams ; common. 



755. S. amygdaloides, Anders. 



Along streams ; rather common. One tree having hermaph- 

 rodite flowers grows near Blue Grass. 



756. S. Fragilis, L. Crack Willow. 



Several trees along stream near Blue Grass. 



757. S. alba, L., var. vitellina, Kock. 

 Frequent. 



758. S. Babylonica, Tourn. Weeping Willow. 



Two trees near Muscatine and one northeast of Eldridge, 

 apparently spontaneous. 



759. S. longifolia, Muhl. 



Low wet grounds; common. 



760. S. rostrata, Richardson. 



A single shrub in low ground at Eldridge. 



761. S. discolor, Muhl. Glaucous Willow. 

 Banks of creeks ; rather common. 



762. S. humilis, Marsh. Prairie Willow. 

 Dry prairies ; frequent. 



763. S. petiolaris, Smith. 



Low wet grounds ; frequent. 



764. S. purpurea, L. 



Along Mud Creek, Muscatine. 



765. .S. cordata, Muhl. Heart-leaved Willow. 

 Wet places ; common. 



766. S. cordata, var. angustata, Anders. 

 With the type ; infrequent. 



[ Proc. D. A. S., Vol. VIII.] 33 (Au«. 7, 1900.] 



