IOWA ACADEMY OF SCIENCE 
79 
OLE ACE AE. 
FRAXINUS (Tourn) L. 
691. Fraxinus pennsylvanica Var. lanceolata (Borkh) Sarg. Green 
Ash. Common in woods, 
692. Fraxinus americana L. White Ash. Cultivated but very rare as 
native. This species has been several times reported as com- 
mon in this as in many other counties of Iowa but is really 
one of our most rare trees, A few trees may be found near 
State Quarries and Turkey Creek. 
GENTIANACE AE . 
GENTIANA (Tourn) L. 
693.. Gentiana crinita Froel. Fringed Gentian. Rare in moist meadow; 
Fremont Twp. 
694. Gentiana puberula Michx. Downy Gentian. Common in open 
places in dry soil. 
695. Gentiana andrewsii Griseb. Closed Gentian. Abundant in marshes. 
696. Gentiana quinque folia L. Yar. occidentals (Gray) Hitchc. Stiff 
Gentian. Plenty in woods. 
697. Gentiana linearis Froel. Narrow-leaved Gentian. Rare in bogs; 
State Quarries. 
698. Gentiana flavida Gray. Yellowish Gentian. Not uncommon in 
open woods and thickets. 
APOCYNACEAE. 
APQCYNUM (Tourn) L. 
699. Apocynum androsamif o Hum L. Spreading Dogbane. Common 
in dry woods and thickets. 
700. Apocynum cannabinum L. Indian Hemp. Common in dry open 
places. 
