>'t I'lKi.i) Manual 



'2. Capsule spiny, stamens exserted. '.]. 



2. Capsule glabrous; stamens not longer than the ])etals. 



rorolla yellow or purplisli. .1. octandra. 

 '■\. Leallets acuminate, tinely serrate. .")-"; a tree. A. 



glabra. 

 ■''. Leaflets long-acuminate, unequally serrate. 7-9; a 



shrub-like small tree. A. arguta. 



1. Aesculus hippocastanum L. Horse-chestnut. .A 

 large tree vvitli very resinous, gummy winter l)uds. Autumn 

 lea\es orange. The seeds are poisonous and' sym])toms of 

 poisoning have been jjroduced frdin eating the green rind. 

 The twigs contain Aesculin which is fluorescent in acpieous 

 solution. Kscaped from cultixation : nati\e of Asia. 



•J. Aesculus glabra W'illd. Ohio Buckeye. A large 

 tree Avith rough and fetid l)ark. Leaves, young shoots, and 

 seeds poisonous to cattle. Wood light and hard to split; used 

 for making artificial limbs, wooden-ware, and paper pulp. 

 Penn., to Ala.. Mich.. Nelh. and Okla. 



5. Aesculus arguta P>uckl. Western Buckeye. A 

 shrub-like small tree witli smooth bark. On flood plains. 

 y\o. and Kan. to Texas. Reported from Iowa. 



4. Aesculus octandra Marsh. Yellow Buckeye. A 

 larg( tree witli l)rown scaly bark. Seeds poisonous. Wood 

 light and hard to split; used for making artificial limbs, 

 woodenware. and paper pul]). Aesculus octandra hybrida 

 ( DC. ) Sarg. has purplish or pink flowers, leaflets pubescent 

 lieneath. and light brown bark. Penn. to (ia.. Iowa and Tex. 



Ai'rraccac. .\la])le l-"amil\. 

 II. Acer (Tourn.) L. ?\l.-iple. 



Trees or shrubs witli oi)posite leaves, with •■{-■'» ])un(lle 

 scars in the narrow, contigm us leaf scars, and with a ter- 

 minal bud showing several pairs of visible scales. 



Sap watery or sometimes milky, often saccharine; fruit a 

 •2-winged samara. Usually diecious or im])erfectly diecious. 



1. Leaves pinnate or trifoliate; twigs green, glaucous. 



A. ncgundo. 

 1. Leaves simple. 2. 



