Handbook of Trees of the Xoetherx States axd Caxada. 44t» 



inner bark and honey and perfume from their flowers. About twenty species are known five 

 or six of which are found among the trees of eastern North America. 



serrate""' P;,f,!vi'^T/,lfv'°"lT^'''"'''''*''•."''*"'^■■ ™"^'^''' "'"^ °'^"<3"<' ^t l'-''**''- acute or acuminfl-te, 

 ench itrln^fil?,,,., ■! i'"' ■?,"'' ^T'^' ^'-^Si-ant an.l nectariferous in pedunculate axillary cvmes, 

 nhnnt^vlf- f""V, '"' ""'f'-^ ''"■^'', '''"'^ ^°''"' niembranous bract to which it is adnate to; 

 rln» !,. , length; sepas o; petals 5, imbricated in the bud, yellowish white stamens in 5 



^ilfi fi fii '^'"':''v.'',./'" "'^ American species) united with a petal-like scale opposite each 

 petal, the filament filiform and forked at the apex, each fork bearing an extrorse half-anther ; 

 oyary o-celled. eacai cell containing 2 anatropous ovules; style columnar and with 5 spreading 

 stigniatic lobes. Fnnt nut-like, dry, woody, 1-celled and containing 1-2 amphitropous seeds': 

 cotyledons palmately 5-lobed. 



The name is the classical name of the European Linden. 



KEY TO THE SPECIES. 



a^ Leaves green and glabrous beneath T. Americana. 



a- Leaves whitish and 



Tornentose beneath T. heterophylla. 



btellate pubescent with tufts in the axils of the veins beneath T. Michauxii. 



For species see pp. 350-3,51 and the foUou-ing: 



White Basswood, T. heterophyUa. Vent. A large tree ranging from southern N. Y. to 

 h la., particularly of the Alleghany Mts. Leaves ovate-oblong to oval. 5-10 in. long, cordate 

 or truncate and oblique at base, abruptly acuminate, serrate, at maturity thin, dark green 

 above, whitish and tomentose beneath ; branchlets glabrous. Floirers with pedunculate bract 

 4-5 in. long, decurrent nearly to base. Fruit oblong to subglobose, about i/i in. long, rusty- 

 tomentose. 



_ iMiCHAtix Basswood, T. Miehnii.rii Xutt. Similar to the above and often confounded with 

 It and with T. pubescens Ait. of the southern coast region. Its distribution, apparentlv e.f- 

 tendmg from the vicinity of Montreal, Canada, to the Gulf states, is not well understood, 

 Leaves broad-ovate, mostly cordate and very oblique at base, short acuminate or acute at apex, 

 serrate, at maturity rather firm, glabrous dark green above, whitish stellate pubescent with 

 tufts of hairs in the axils of the veins beneath. Flowers floral bract pedunculate, spatulate- 

 •obovate, decurrent to within %-% in. of the base of the peduncle. Fruit subglobose, about 

 % in. in diameter, hoary-tomentose. 



TEA FAMILY. THEACE^ DC. 



Trees and shrubs of about one hundred and sixty species, grouped in sixteen or seventeen 



genera, and confined chiefly to the tropics of the New World and southern and eastern Asia, 



The most important genus is Camellia ^ yielding the tea of commerce and shrubs with beautiful 



flowers. 



Leaves alternate without stipules. Flotvers showy, regular, perfect; sepals and petals -5, 

 imbricated in the bud, hypogenous ; stamens numerous with 2 longitudinally dehiscent cells ; 

 ovary mostly 3-.5-celled and stigma 3-5-lobed. Fruit a woody 3-5-celled caspule ; seed with 

 large cotyledons and no albumen. 



THE LOBLOLLY BAY, ETC. Genus GORDONIA(L) Ell. 

 Trees and shrubs of about a dozen species mainly of southeastern Asia. One species is 

 represented in the flora of southeastern United States. Another tree, the Franklinia, by some 

 considered a species of this genus, is more properly considered the type of another genus of 

 that name. 



Leaves alternate, evergreen, coriaceous. Flowers long-stalked and solitary in the axils of 

 the leaves; sepals unequal, silky, concave, rounded and persistent; petals white, obovate, 

 slightly united at base, concave ; stamens numerous with short filaments inserted on .5 fleshy 

 disks each adnate to the base of a petal : anthers introrse, yellow ; ovary sessile with elon- 

 gated style, Ti-lobed and stigmatic at apex; ovules 4 in each cell, anatropous. Fruit a woody 

 pointed ovoid loculicidally dehiscent capsule ; valves 5, entire ; seeds usually 4 in each cell ; 

 jiendnlous, compressed and an oblong wing at the tip. 



Named in honor of James Gordon, a London nurseryman of the ISth century. 

 For species see pp. 352-353. 



GINSENG FAMILY. ARALIACE^ Vent. 

 Trees, shrubs and herbs of about four hundred fifty species, grouped in thirty-two genera, 

 and widely distributed throughout tropical and to a lesser extent temperate regions. 

 A single arborescent species is native to the flora of eastern United States. 

 29 



