90 MALVALES 



1. Callirrhoe alceoides (Michx.) A. Gray. Poppy mallow. 



Fairly common in the eastern half of the state. Cowles; Crete; Fair- 

 bury; Lincoln; Minden; Peru; Walton; Weeping Water. 



2. Callirrhoe involucrata (T. & G.) A. Gray. 



In dry soil throughout the state, common in the western part. Calla- 

 way; Cambridge; Franklin; Grand Island; Kearney; Nebraska City; 

 Nelson; Red Cloud. 



3. Malvastrum. 620. 



1. Malvastrum coccineum (Pursh.) A. Gray. Red mallow. 



Common in dry soil in the western part of the state. Alliance; Ante- 

 lope County; Belmont; Broken Bow; Grand Island; Scotts Bluff; Red 

 Cloud; Valentine. 



4. Sida. 620. 

 1. Sida spinosa L. 



In dry soil in the southeastern part of the state. Nebraska City; 

 Nemaha. 



5. Abutilon. 621. 



1. Abutilon abutilon (L.) Rusby. Velvet leaf. 



Abutilon theophrasti Medic. 

 Common in the eastern part of the state. Dakota County; Lincoln; 

 Omaha; Peru; Weeping Water. 



6. Hibiscus. 622. 



Glabrous, flowers pink, involucral, bracts not ciliate. 1. H. militaris. 



Pubescent with spreading hairs, flowers yellow, bracts of the involucel 



ciliate. 2. H. trionum. 



1. Hibiscus militaris Cav. Halbred-leaved rose-mallow. 



Along streams in the eastern part of the state. Ashland; Glen Rock; 

 Hooper; Nemaha. 



2. Hibiscus trionum L. 



Introduced, common in the eastern part of the state. Grand Island; 

 Lincoln; Minden; Pishelville; Red Cloud; Roca; Weeping Water. 



3. ULMACEAE. 



Fruit a samara, flowers borne on last year's twigs. Ulmus. 



Fruit a drupe, flowers borne on twigs of the season. 2. Ceitis. 



1. Ulmus. 337. 



Samaras with ciliate margins, bud-scales not brown-tomentose. 

 Samaras with glabrous faces, branches not winged. 



1. U. americana. 



Samaras with pubescent faces, branches winged. 2. U. racemosa. 



Samaras with smooth margins, bud-scales brown-tomentose; leaves 



very rough above. 3. U. fulva. 



1. Ulmus americana L. White elm. 



In moist, rich soil along streams over most of the state. Alliance; 

 Culbertson; Hooker County; Lincoln; Saltillo; Wahoo. 



