226 
IOWA ACADEMY OF SCIENCES. 
470. C. stolonifera Michx. Low ground; frequent. 
471. C. candidissima Marsh. (C. paniculata L’Her.) 
Thickets and roadsides; common. 
472. C. alternifolia L. f. Rocky banks; frequent. 
PYROLACE^. 
Pyrola. 
473. P. elliptica Nutt. High woods; infrequent. 
MONOTROPACE^ . 
Monotropa. 
474. M. unijlora L. Rich woods; infrequent. 
PRIMULACE^. 
Primula. 
475. P. farinosa L. Growing in moss a few feet above 
the water on a perpendicular cliff along the 
Iowa river at Iowa Falls. 
Androsace. 
^ 476. A. occidentalis Pursh. Common in waste, sterile 
ground. 
Steironema. 
477. S. ciliatum (L.) Raf. Damp woods and along 
streams; common. 
478. S, quadriflomm (Sims.) Hitch. {S. longifolium 
Gray.) Common in wet meadows. 
Naumburgia. 
479. N. ihyrsijiora (L.) Du by, {Lysimachia thyrsiflora 
L.) Frequent in swamps. 
Dodecatheon. 
480. D. meadia h. Prairies; becoming scarce. 
OLEACE^. 
Fraxinus. 
481, F. americana L. Woods; common. 
482, P, lanceolata Borck<, (P. viridis Michx. f.) Damp 
woods; common. 
483, Pp nigra Marsh, (P, samhucifolia Lam.) Woods; 
abundant. 
