Handbook of Tee.es of the Northern States and Canada. 445 

 THE SMOKE-TREES. Genus COTINl'S Adans. 



Small (i-i'fs of (wo specii's with aromatic milky juicp. one n native of Europe anil Asia 

 and the other of southeastern United States. 



J.(.ar<s: ile.iiluous, siniple, niosl ly petiolale, tliinnisli. (.hovate, olilons or oval, entire, glah- 

 rous or nearly so. /'/oin r.< small, greenish-yellow, diieeious or polygamous, in large' Foose 

 ti'rminal panicles with slender aeeresceut pedicels many of which are abortive and^ become 

 \ illous ; calyx lobes persistent; petals twice as long as the sepals; stamens ;">, shorter than 

 the pietals ; ovary obovoid, compressed ; styles o. lateral, spreading. Fndt 1-seeded dry 

 obliquely oblong compressed glabrous drupelets, conspiiaiously reticulated and bearing the i-eni- 

 nants of the styles on one side; stone bon>-. The drupelets occur in ample loose thyrso'd 

 panicles with many iihune-like abortive piedieels. 



The ntinie is the ancient (ireek name of the Wild OUrc. transferred to this tree. 



F<ir sprrirs src pp. .SO 'i-Jll.j. 



THE SUMACHS. Genus RHUS L. 



Trees, shrubs and climbing vines of about one hundred twenty species, natives mainly 

 of the warmer parts of the north and south temperate regions. Some ari> of great economic 

 value, as those jiroilm-iug the lacquer and vegetabh' wax of .Japan, tannin, etc.. and several 

 jiossess p<_>is(_mous priqierties. Sixteen or se\-(niteen species are nati^'es of the United States 

 of which about a half dozen may be consiilered as trees. 



Lcaii.^ hjstly unetjuall,\' ]iiunate and deciduous, a few simple and persistent, alternate. 

 Fhnrrrs mostly dio'cious in comiKtvnu.l axillary or terminal panich^s ; cal,\x mostly "i-cleft or 

 parted and iiersisti-uit ; iii'tals spreading and longer than the (.-al.\'x-lobes ; stamens .">. alternate 

 with the i)etals and inserted with them under the margin of the annular disk : pistil solitary, 

 sessile, wuth three terminal st,\des. Fruit a sub,globose drupelet mostly in tli,\'rses with thin 

 dry hairy or glabrous outer coat and a single bony or crustaceous stone; cotyledons foliaceous, 



Rhus is the classical Green name of the European Suuiarli. 



KEY TO THE SUEtTES. 



a Fruit pubescent, red, with smooth stone, in terminal thyrses 



Racliis of the leaf not winged villosi' R. Mrta. 



Rachis winged between the leaflets K. copallina. 



a= Fruit glabrous", white, with striated stone in axillary panicles R. vernix. 



For sprcicfi sec pp. 30l>-311. 



HOLLY FAMILY. ILTGACE.E Lowe. ( AOUIFOLIACE.E DC.) 



Trees and shrubs with watery sap and terete brajichlets of five genera and about one 

 hundred seienty specii's. They are widely distributed in both tenqierate and tropical regions 

 of both the old World and the Xew. Only one genus contains arbiu'escent rejireseutatives in 

 the TTnited States. 



Lcarrx alternate, persistent or deciduous, peti.date, entii'e, ci'enate oi- to..thed and with 

 minute stipules Flurrrx small, regular, axillary, while or greenish, di(e<-ious or pol.vgamous ; 

 calvx with 4-(; lobes imbricated in the bud, generally persistent, hypogenous ; iietals 4-(i, imbri- 

 cated deciduous separate or united at base ; disk none ; stamens as ma"V as the lobes of the 

 cfirolla alternate with them and inserted on the corolla; anthers oblong; pistil solitary, 

 superior con.iJOund with 4-S-celled ovary, short style or none and capit.ate stigmas of the same 

 number as the cells of the ovary ; ovules usually 1 in each cell, suspended, anatropous. Fnnl 

 a drupe with thin flesh and as many horny or crustaceous nutlets as carpels; seeds pendulous 

 with minute etraight embryo and fleshy albumen, 



THE HOLLIES, Genus ILEX L, 



Trees and shrubs of about ,.ne hundred sixty species of which thirteen inhabit eastern 

 North .Vmerica I none (he western side of (he continent) and live .d' these arc trees. 

 The characters are (hose given of the family. 



The name is the anci,.„t (ireek name of the Ho».v Oul- of southern Europe. 



KEY TO THE SPECIES. 



a Leaves evergreen, thick ; nutlets ribbed ; b^'Me-. j_ ^ 



Spiny-toothed . . . , -_■•;.; I. Cassiiie. 



Futire or remotd, senate ^ Tomitoria. 



Coarsely crenale 



