Haxddook ok Tkkks of the Xortiikkx Statks and C'axada. 449 



inner bark and honey and iicrfuinc from their flowers. Ahonl twenty siiecies aro known five 

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



Tjcdvcft defi(hioiis. loiiii-petiolate. mainly cordate and obliqne at base, acute or acuminr.-te. 

 serrate. Fhnrcra li.iiht yellow, very fragrant and nectariferous in pedunculate axillarv cvmes. 

 each iHMluncle furnished with a large pale floral membranous bract to which it is adnate for 

 about half its length : sepals H ; petals 5, imbricated in the bud. yellowish white stamens in .' 

 clusters each cluster (in the American species) united with a i)etal-like scale opposite each 

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

 ovary H-celled, each cell containins- 2 anatropous ovules; style columnar and with o spreading 

 stigmatic lobes. Fruit nut-like, dry, woody, 1-celled and containing 1-2 amphitropous seeds; 

 cotyledons palmately H-lobed. 



The name is the classical name of the Euroi)(>an L'uuJi n. 



KEY TO THE SPECIES. 



a Leaves green and iriabrous beneath T. Americana. 



a- Leaves whitish and 



Tomentose beneath T. heteropliylla. 



Stellate pubescent with tufts in the axils of the veins Ix'tieath T. Michauxii. 



For species sec pp. 3-jO-3')1 and ihc foJloiciurj: 



White BASSWOOn, T. hcicrnplnjUa Vent. A large tree ranging from southern X. Y. to 

 Fla.. particularly of the Alleghany Mts. Lcares ovate-oblon? to oval. il-lO in. long, cordate 

 or truncate and oblique at base, abruptly acuminate, serrate, at maturity thin, dark si'een 

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

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

 Tomentose. 



MiCHAUX Basswood. T. Michauxii Xutt. Similar to the above and often confounded with 

 it and with T. puhcscens Ait. of the southern coast region. Its distribution, apparently ex- 

 tending 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. Flotcers 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^E 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 CameUla, yielding rhe tea of commerce and shrubs with beautiful 



flowers. 



Leaves alternate without stipules. Floiiers showy, regular, perfect; sepals and petals .j, 

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

 ovary mo'^tly .S-H-celled and stigma o-5-lobed. Fruit a woody 3-5-celled caspule ; seed with 

 large cotyledons and no albumen. 



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



Trees and shridjs 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 ."> fleshy 

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

 gated style. H-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 ; 

 jiendulous. compressed and an oblong wing at the tip. 



Named in honor of .James Gordon, a London nurseryman of the 18th century. 

 For species see pp. 352-35.i. 



GINSENG FAMILY. ARALIACE^ Ve^t. 



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

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

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

 29 



