IOWA ACADEMY OF SCIENCES. 
159 
Hcupuliferae. 
Corylus americana Walt. 
Os try a virginica Willd. 
Quercus macrocarpa Mx. High prairie and bluffs along river. 
Q. rubra L. 
Q. alba L. 
Q.coccinea Wang. All four species common along larger streams. 
SALICACEAE. 
Salix amygdaloides And. 
S. alba L. 
5. nigra Marsh. 
S. Cordata Muhl. Not common. Discovered on Middle river 
near Madison county line. 
Populus monilifera Ait. 
ORCHIDACEAE. 
Spiranthes gracilis Bigelow. Very rare. Collected by Mr. J. 
G. Culver on the road between Greenfield and Orient. 
Cypripedium candidum Willd. Very rare. 
Habenaria leucophea Gray. Once very common. Now almost 
extinct. 
IRIDACEAE. 
Sisyrinchium augusti folium Mill. 
AMARYLLIDACEAE. 
Hypoxis ere eta L. 
LILIACEAE. 
Allium canadense Kalm. Abundant in two or three restricted 
localities. 
Polygonatum biflorum Ell. Low woodlands or brush. 
Asparagus officinalis L. Escaped from gardens. 
Uvularia granditlora Smith. Woodlands. Not very common. 
Erythronium americanum Ker. Woods. 
Lillium philadeiphicum L. 
Trillium nivale Riddell. Woods. 
Melanthium virginicum L. 
Smilacena racemosa Desf. Woods. 
MAYACEAE. 
Tradescantia virginica L. 
TYPHACEAE. 
Typha lati folia L. 
ARACEAE. 
Arisaema triphyllum Tou. 
ALISMACEAE. 
Sagittaria variabilis Eng. 
HThe birch occurs in Guthrie county but has not been discovered in Adair. 
