90 IOWA ACADEMY OF SCIENCES. 



Prenanthes asper, Michx. Muscatine; frequent. 



Monotropa uniflora, h. Floyd county. (Trigg.) 



Androsace occidentalis, Pursh. Iowa City. (Hitchcock.) 



Phlox bifida, Beck. Dr. E H. King, Muscatine, along Cedar River. 



The species has also been reported from Vinton. See Bulletin Torrey Bot. 

 Club. 



Pentstemon grcmdiflortis, Nutt. Muscatine; "Sandy soil, sand mound, 

 Muscatine Island. Cedar River". (Reppert.) Although the species occurs 

 in different parts of the State it is not common. 



Verbena qngtistifolia, Michx. Muscatine; dry soil along Mississippi and 

 Cedar rivers. "Does not occur on ground elevated much above low water 

 mark". (Reppert.) 



Lippia lanceolata, Michx. Story City; sandy soil in bed of Skunk river. 

 The species was also found on the banks of the Mississippi River at Prairie 

 Du Chien, Wisconsin. 



Pycnanthertvum muticum, Pei's., var. pilostim. Gray. Muscatine, Keokuk, 

 Cedar Rapids, dry, sandy woods. 



Salvia lanceolata, Willd. Ames (Sexton), 1890. 



Fi-oelichia Jtoridana, Moqnin. Muscatine; dry, sandy soil. Banks of Mis- 

 sissippi and Cedar rivers. Quite common along the Mississippi river north 

 of Muscatine, especially at La Crosse, Wisconsin. 



Polygonum tenue, Michx. Cedar Rapids; dry, sandy banks. Muscatine. 



Euphorbia geycri, Engelm. Muscatine. 



E. serpens, H. B. K. Page county (Hitchcock); Harrison county (Burgess). 



E. hexagona, Nutt. Muscatine; dry soils; infrequent. 



E. dictyosperma, Fischer and Meyer. Iowa City (Hitchcock). 



Croton glandulosus, L. Muscatine; common in drj, sandy soil. Occur- 

 ring with it is a form almost destitute of saucer shaped glands. 



(J. capitatus, Michx. Muscatine. Davenport (Hitchcock). 



Camassia fraseri, Torr. Le Claire. 



Yucca angustifolia, Pursh. Council Bluflfs, Sioux City (Hitchcock). 



Maianthemum canadense,V)Qst. Muscatine. Sandstone ledges; rare. Ames 

 (Sexton.) 



Paspalum Jluitons, Kunth. Muscatine. 



Elusine indica, Gaert. Keokuk. 



Festuca elatior, L., var. pratensis, Gray. Keokuk, Ames. 



Phegop)teris calcarea, Fee. Decorah (Holway). 



Cheilanthes lanuginosa, Nutt. North McGregor. Limestone rock; not 

 common. 



Aspidium acrostichoides, Swartz. Muscatine. ^ 



A goldianum. Hook. Muscatine. 



Lycopodium lucidulum, Michx. Muscatine; rare. 



III. DiSrRIBUTION OF SOME loWA TREES AND SHRUBS. 



Asimina triloba, Dunal. Specth's Ferry, McGregor (Kennyon), Dubuque 

 (Guilford), Tabor. 



Mr. Kennyon reports only a few trees and these do not appear to thrive. 

 It has probably reached its most northern distribution along the Mississippi. 

 It is not mentioned by Uphara in the Flora of Minnesota. 



Ptlea trifoliata, L. Muscatine; borders of woods in dry soil; frequent. 



