Handbook of Trees of the Xoetheen States and Canada. 455 



species are found within tlie United States, all arborescent tliougli one is more commonly a 

 shrub than a tree. 



Leaves deciduous, odd-pinnatel.v compound, petiolate ; leaflets conduplicate in the bud and 

 usu.T. ly serrate. l<loivers in early spring, from the axils of the leaves of the previous season, 

 mostly dioecious or polygamous (occasionally perfect) in fasciculate panicles; calyx small, 

 campanulate or none ; corolla 2-4-parted or none ; stamens usually 2 with short terete filaments 

 and large oblong anthers opening by lateral slits ; ovary mostly 2-celled with single style and 

 --lobed stigma. Fndt a samara, with terete or somewhat flattened and usually 1-seeded body 

 and terminal wing ; seed elongated, pendulous. 



Fraj-iiius is the ancient Latin name of the Asfi-ticc. 



KEY TO THE SPECIES. 



a Samara with seed-bearing portion flattened and wing extending the entire length 



b^ Lateral leaflets sessile: calyx in the fertile flowers none F. nigra. 



b= Lateral leaflets stalked : calyx present 



Samara obovate to spatula te ; twigs terete F. Caroliniana. 



Samara elliptic to spatulate ; twigs 4-sided F. quadrangulata. 



a-' Samara with seed-bearing portion subterete : wing not extending to base; leaflets stalked; 

 calyx present in fertile flower 

 b Wing almost entirely terminal — slightly if at all decurrent on body 



c Leaves and branchlets glabrous or nearly so F. Americana. 



c'^ Leaves beneath and branchlets pubescent F. Biltmoreana. 



h- Wing decurrent somewhat on sides of body but not to base 

 c Wing of samara spatulate 



d Branchlets and leaves glabrous or nearly so ; leaves green beneath. 



F. lanceolata. 

 d'' Branchlets and petioles velvety pubescent 



Samara less than 2 in. long ; calyx small F. Pennsylvanica. 



Samara mostly 2 in. long or more ; calyx enlarged F. profunda. 



o" Wing of samara long-linear F. Darlingtonii, 



For species see pp 3S-'i-399 and the foUoiring: 



Darlington A.sii. F. Darlinr/tonn Britt. This is a little known species described from 

 material from Lancaster, Pa., and is similar to the F. lanceolata and F. Pennsylvanica, with 

 foliage and twigs pubescent or glabrate and samara 2-3 in. long with linear wing decurrent 

 upon the seed-bearing portion one third to one fourth its length. 



THE FRINGE-TREES. Genus CHIOXANTHUS L. 



Trees or small shrubs of two species one of the middle and southern United States and 

 the other of China. 



Leaves simple, deciduous, opposite, conduplicate in the bud. Floieers perfect or poly- 

 gamous, white, in loose drooping panicles from the axils of the leaves of the preceding s?ason : 

 calyx small, 4-parted, inferior, persistent ; corolla of 4 linear white petals slightly united at 

 ba.se; stamens 2, inserted on the base of the corolla, with very short terete filaments and ovate 

 apiculate anthers; ovary ovoid with short columnar style and thick fleshy 2-lobed stigma; 

 ovules 2 in each cell, pendulous. Fruit an ovoid or oblong drupe tipped with the remnants of 

 the style, nearly black thick skin, dryish flesh aud usually 1 but sometimes 2 or 3 thick-walled 

 crustaceous stones. 



The name is from two Greek words meaning snow-flon-er. 



For species sec pp. JiOO-.'iOl. 



THE FORESTIERA. Genus FORESTIERA Pom. (ADELIA P. Br.) 



Shrubs or small wide-branching trees of about fifteen species natives of America. Six or 

 8 species are found in the southern United States, one of these only attaining the dignity of a 

 tree, and that ranging as far north as southern Illinois. 



Leaves simple, opposite, deciduous or rarely evergreen, and usually small. Flowers small 

 and mostly polygamous, yellowish or greenish, dire-cious. appearing before the leaves in fas- 

 cicles or racemes from scaly buds in the axils of the leaves of the previous year ; calyx with 

 very short tube and 4-5 unequal lobes ; corolla none or with 1 or 2 deciduous petals ; stamens 

 2-4" with extrorse anthers; ovary ovoid, 2-celled, with slender style and thick usually 2-lobed 

 stigma and 2 pendulous ovules in each cell. Fruit a drupe with 1 or 2 seeds with membranous 

 testa aud fleshy albumen. 



The name is in compliment to M. Forestier, a French i^hysician. 



For species see pp. 402-403. 



