IOWA ACADIIMY OF SCIENCES 
49 
ZiZIA. • ' ' i 
572. Z. aurca (L.) Koch. Common in fields and meadows. 
CiCUTA. 
573. C. maculata L. Scarce in marshy places. 
574. G. hulMfera L. Scarce in marshy places. 
Deringa. j 
575. canadensis (L.) Kuntze. Abundant in rich woods. {Crypto- 
taenia canadensis DC.) 
Caeum 
576. G. carui L. Scarce; escaped from gardens. 
Taenidia. 
577. T. integerriw,a (L.) Drude. Abundant. {PimpineUa integer- 
rima A. Gray.) 
SlUM. 
578. S. cicutae folium Gmel. Rather scarce in wet places. 
Tiiasptum. 
579. T. l}arT)inode (Michx.) Nutt. Plenty in woods. 
Pastinaca. 
. 580. P. sativa L. Plenty in fields and waste places. 
Heracleum. 
581. E. lanatum Michx. Scarce in moist places. 
Caucus. 
582. D. pussilus Michx. Very rare in high sandy fields. 
cornaceae. 
I 
G. cireinata L’Her. Abundant in woods and along streams. 
C. araom um Mill. Scarce in damp places. 
C. stolonifera Michx. Rather scarce in moist soil. 
G. candidissima Marsh. Very common in woods and along roads. 
(C. paniculata L'Her.) 
C. alternifolia L. f. Scarce in rocky woods. 
MOXOTEOPACEAE. 
Monoteopa. 
588. M. uniflora L. Rare in deep woods. Commonly called “Corpse- 
plant” from its changing from waxy white to black when 
picked. 
PKIMULACEAE. 
Lystmachia. 
589. L. quadrifolia L. Scarce in open woods. 
Steteonema. 
590. S. eiliatum (L.) Raf. Abundant in moist soil. 
591. S. lanceolatum (Walt.) A. Gray. Rare in wet places. 
592. S. quadriflorum (Sims.) Hitchc. Abundant in moist fields. 
Naumbttkgia. I 
593. N. thyrsiflora (L.) Duby. Plenty in SYv^amps and marshes. 
{Lystmachia thyrsiflora L.) 
Corpus. 
583. 
584. 
585. 
586. 
587. 
