102 KANSAS ACADEMY OF SCIENCE. 



bark, Ivs. and pods bitter and aromatic; Ifts. 9-11; fls. in axillary clusters, 

 preceding the Ivs. in spring; stems, and often leaf-stalks, prickly. 



4. Ptelea. Wafee Ash. 



4. P. trifoliata, L.; Hoptree, Wafer Ash. A small tree, often only a shrub; Ivs. 3- 



foliate; Ifts. sessile, ovate, pointed; small greenish-white fls. The bitter fruit 

 winged all around, nearly 1' in diameter. 



(Order Aquifoliacece.) 

 5. Ilex. Holly. 



5. /. decidua, Walter; Holly. A tree or tall, straggling shrub; wood hard, creamy 



white; Ivs. simple, alternate, downy on the midrib, shining above, acute or 

 acuminate at each end. Small fls. in spring; fr. a red drupe. 



(Order Celastracea;.) 

 6. EuoNYMus. Burning Bush. 



6. E. atropurpureus, Jacq.; Burning Bush, Wahoo. Small tree, often a low shrub; 



wood heavy, tinged with orange; Ivs. opposite, serrate, pointed; branchlets 

 4-sided; pods deeply lobed, bright crimson in autumn. 



(Order Rhamnacete.) 

 7. Rhamnus. 



7. R. Caroliniana,^^ alter; Indian Cherry. Small tree; wood light brown, hard; Ivs. 



alternate (rarely opposite), oblong-oval, dark shining green above; veins prom- 

 inent, nearly straight, jiarallel. Fr. a black, berry-like drupe. 



(Order Sapindacese.) 

 8. iEscuLUS. Buckeye. 



8. A. glabra, Willd.; Ohio Buckeye, Fetid Buckeye. Small tree, with light, soft 



wood. Lfts.5; fls. in May or June; stamens curved, exserted; fr. covered with 

 prickles when young. 



9. A.flava, Ait.; Sweet Buckeye. Tree and wood similar to preceding. Lfts. 5-7; 



fls. in late spring; stamens included; fr. smooth. 



9. Sapindus. Soapbebey. 



10. S. marginatus. Willd.; Soapberry, Wild China. A tree 20°-50° high. Lfts. 9-18, 



ovate-lanceolate, long-pointed, entire. Berry usually single, reddish-brown; 



pulp soapy. 



(Order Aceracew.) 



10. AoEE. Maple. 



11. A.saccharinunijWang; Sugar Maple. A large tree; bark light gray; wood heavy, 



hard, tough, close-grained; Ivs. 3-5-lobed, whitish beneath, sinuses rounded; 

 fls. appearing with the Ivs.; fr. broad. 



12. A. dasycarpum, Ehrh.; Soft, White, »r Silver Maple. A large tree; wood light, 



hard, brittle, close-grained. Lvs. very deeply 5-lobed, silvery-white underneath, 

 the divisions narrow, cut-lobed and toothed; fls. preceding the lvs.; fr. woolly 

 when young. 



13. A. rubrum, L.; Red Maple. Large tree, wood heavy, hard, not strong, compact; 



twigs reddish; lvs. 3-.5-lobed, whitish underneath, the lobes serrate and notched; 

 fls. preceding the lvs.; fr. smooth. 



11. Neoundo. Box Elder, Ash-leaved Maple. 



14. N. aceroides, Mcench.; Box Elder. Tree 25°-50° high; wood light, soft; lvs, ter- 



nate, and 5-7-pinnate, terminal 1ft, largest. 



