1Ia.\1)]!()OK of TkkKS ok TJIK XolMIlKKX StATKS A.\L) ("a.xada. 417 



h' Bt'fon^ tilt' Ifiivcs i:i \ci-.v early sprins, in fascicles from lat.Tal huds : fruit riijciiiiit; in 

 early sunuiicr 

 c Flowers subsessilc without petals; ovary tonieiilose : leaves deeply lobed. 



A. saccharinum. 

 c^ Flowers with pedicels and petals; overy -lal.rous; lea\-es not deeply hjlied aud 



(Jlahrous or nearly so beneath A. rubrum. 



White-tonientose beneath A. Drummondii. 



a' I'iunately compound ; flowers diu'cious A. Negundo. 



For fii)cci<s sec pp. .l.^'i-.].n. mill llif fulloiriiifi 



DRyMMOSU Mapi.e — .leer l)nniniioii<J\i II. & A.; .1. nihniin var. Dnnnwondii Sarjr. A 

 lar.ac tree inhabit in.^■ deej) river swami)s of the Gulf states from (icorgia to Texas and u)) tho 

 Mississi])])i ^■alIe.\• to southeastern .Missouri, where in a limited area it is found within th" 

 territory covered by this work. Lcarrs ."Mobed, or sometiiues partially r>-lobed with short broad 

 acute or acuminate nearly entire lobes, cordate oi' rounded at base, thick iind densely hoary- 

 tomentose beneath, as are the petioles and all new growth. Flowers scarlet, in dense lateral 

 clusters, expandins before the leaves, with pedicels and iK>tals. Fruit ripening in .March oi- 

 Ainil with or before the expanding of the leaves, bright scarlet samaras l^A-^VL' in- '""« ^vit!l 

 wings 1/3-% in. broad aiid with slender pedicels 1-2 in. long. 



HORSE-CHESTNUT FAMILY. HIPPOCANTANACE^ T. and G. 



Trees and a few shrubs with ill-scented bark, large branchlets aud buds, and of al)out 



eighteen species natives of North America and Asia and grouped in two genera, Ac.vc»/h.s and 



BiUUi. the latter a genus of Mexico and Central America. 



Leaves deciduous, opposite, petiolate, digitately compound, with 3-0 serrate leaflets, and 

 without stipules. Floirers appearing after the leaves, conspicuous, polygamous, in show\ 

 terminal cymes or panicles, only the lowermost flowers generally fertile; pedicel jointed: calyx 

 campanulate with .I unequal lobes, imbricated in the bud : petals 4-5, unequal, clawed : disk 

 hypogenous. annular; stamens r»-S, usually 7. unequal with elongated filiform filaments and 

 introrse 2-celled anthers longitudinally dehiscent ; ovary sessile. 3-celled, with 2 ovules in each 

 cell ; style slender, elongated, curved, and with terminal stigma. Fruit a coriaceous 8-valved 

 1-2-seeded capsule, loculicidally dehiscent ; seeds large, round or irregularly himispherical with 

 smooth shining brown coat, large pale hilum, large thick unequal cotyledons, 2-leaved plumule 

 and remaining underground in germination. 



THE BUCKEYES AND HORSE-CHESTNUT. Genus ^SCULUS L. 



A genus of ten or twelve si)ecies of which four native and one naturalized are represented 

 among the trees of America. Tl!(» characters are those of the family. 



The name is the classical name of a kind of oak and transferred to this genus. 



KEY TO THE SPECIES. 



a Flowers white; winter buds resin-coated; leaflets mostly 7....... A. Hippocastanum. 



a- Flowers yellow ; winter buds not resin-coated : leaflets mostly o ; stamens 



Longer than petals ; capsules spiny at least when young A. glabra. 



Shorter than petals ; capsules quite smooth A. octandra. 



For species see pp. J.i.S-J'/.?. 



SOAPBERRY FAMILY. SAPIXDACE.^ R. Br. 



Trees, shrubs and a few \ines with watery juice and chiefly confined to the tropics of the 



Old World. Over a thousand species are known grouped in about twenty genera. Of th.> 



arborescent genera four are reiiresented in the United States, all southward. 



Lea res alternate in the American representatives, petiolate, pinnately or palniately com- 

 pound, without stipules. Floirers regular or slightly invgular, ])olygamous, diipcious ; calyx 

 4-r)-lobed or divided, imbricated in the bud; petals 4-."i. imbricated; disk annular, fleshy; stamens 

 usually H-IO inserted on the disk : anthers introrse, 2-celled. longitudinally dehiscent : ovarv 

 solitary, with 2-4 lobes and cells or entire; ovules 1 or 2 in each cell; styles terminal. Fruit 

 a drupe or capsule with small solitary se(>d and containing no albumen. 



THE SOAPBERRIES. Gi:xrs SAPIXDIS L. 



Trees and shrubs of wide distribution mainly in tropical i-egions and most abundant vi 

 Asia. Their fruits contain a saiionaceous juice which makes a lather in water, like soap. 

 for which they ar(> sometimes used as a substitute. The horny seeds of some species are used 

 for beads and buttons. About forty species are known of which three are found in southern 

 United States, one ranging as far north as southern Missouri. 



