IOWA ACADEMY OF SCIENCES 
57 
. 781. A. prenanthoides Muhl. Rare in rocky woods. Found in one 
locality only. 
782. A. laevis L. Abundant in woods and fields. 
783. A. concinnus Willd. Rarely on prairies. 
784. A. sericeus Vent. Common on prairie hillsides. 
785. A. dumosus L. Rare in dry soil. 
786. A. salicifolius Lam. Common on high prairies. 
786%. A. paniculatus Lam. Abundant in fields. 
787; A. paniculatus simplex (Willd.) Burgess. Plenty in moist places. 
788. A. tradescanti L. Plenty in fields and meadows. 
789. A. ericoides L. Rather scarce on prairies. 
790. A. lateriflorus (L.) Britton. Scarce in fields and along edges of 
791. A. hirsuticaulis Lindl. Very rare in open woods. 
792. A. multiflorus Ait. Abundant in woods and on prairies. 
woodlands and thickets. 
Ekigeron. 
793. E. pMladelpliicus L. Plenty in fields and woods. 
794. E. annuus (L.) Pers. Common in fields and meadows. 
795. E. ramosus (Walt.) B. S. P. Abundant in fields and meadows. 
Left I LON. 
796. L. canadense (L.) Britton. Very abundant everywhere. 
797. L. divaricatum (Michx.) Raf. Scarce along streams. 
Dollingeeia. 
798. D. umlellata (Mill.) Nees. Scarce in marshes. 
Antennaria. 
799. A. campestris (Rydb.) Scarce on prairies. 
800. A. plantaginifolia (L.) Richards. Abundant not only in woods 
but also in open places. 
SlLPIIIUM. 
801. 8, perfoliatum L. Common in fields and meadows. 
802. 8. laciniatum L. Common in fields and meadows. 
Heliopsis. 
803. H. sca'bra Dimal. Abundant in fields and along roadsides. 
Rubbeckia. 
804. R, trilo'ba L. Common in woods and moist fields. 
805. R. liirta L, Abundant in woods and fields. 
806. R. suMomentosa Pursh. Rare on open prairie. 
807. R. laciniata L. Plenty in the thickets. 
Ratibida. 
808. R. pinnata (Vent.) Barnh. Common on prairies. 
809. R. columnaris (Sims) D. Don. Rare in dry soil. 
Beauneria. 
810. B. angustifolia (DC.) Heller. Plenty in dry soil. 
811. B. pallida (Nutt.) Britton. Common on prairies. 
Helianthus. 
812. H. annuus L. Plenty in waste places. 
813. H. scaherrimus Ell. Common in dry soil. 
814. H, maximiliani Schrad. Rather scarce in dry soil. 
