BALSAMIFLU5:. S52 Lr^UIDAMBAR. 



5. P. moniu'fera. Jtit. 



Leavrs subcordate-dcltoid, smooth, glandular at base, with cartilaginous, 

 hairy, hooked serratures ; »icrrcs spreading ; y^c^'o/es compressed above ; older 

 hranches ieiQle ; ferii'e uiiienii- long and pendulous Banks of the Hudson, 

 near Troy, N. Y., apparently native. Beck. A tree (50 — 70 feet high, with 

 a cylindric trunk. Leaves 2^—4 inches in diameter, on long petioles. 

 April. Necklace Poplar. 



6. P. heterophy'lla. 



Leffl«fi5 roundish-ovate, obtuse, uncinately toothed, cordate and somewhat 

 aurioied at base, the sinus small, tomentose when young. A tree (iO — 70 

 feet high, found in swamps. Branches cylindric. Leaves with auriculate 

 lobes at base which often conceal the insertion of the petiole. May. 



Various-leaved Poptar. 



7. P. ca'ndicaws. 



Leaves ovate-cordate, acuminate, obtusely and unequally serrate, whitish 

 beneath, reticulate-veined, somewhat 3-nerved ; peUulcs hirsute ; buds resin- 

 ous; brnnclics terete. Thi.^ tree is sometimes met with in JNew England, 

 growing about houses as a shade tree. It is 40 — 50 feet high, and Id — 30 

 inches in diameter. Bark smooth, greenish. Foliage copious, dark green, 

 April. Balm of Uilead. 



8. P. CAxXADE'NSIS. 



Leaves roundish-ovate, deltoid, acuminate, subcordate, unequally serrate, 

 smooth, slandiilar; petioles compressed; younger branches angled. The 

 cotton-tree grosvs 70 — SO feet high, in N. Y. and Vt. The fertile aments are 

 G — 8 inches long, and pendulous. The seeds are clothed with a white, 

 cotton-like down which gives name to the tree. Buds sealed against tiie frosla 

 and rains with resin. April. Cotton Tree. 



9. P. DILATA'TA. — Leaves smooth, acuminate, deltoid, serrate, the 

 breadth equaling or exceeding the length; trunk lobed and su cate. This 

 tree is native in Italy as its name imports. It was early brouirht to thia 

 country, and has been planted about many a dwelling and in village streets. 

 llB rapid growth is the only commendable quality it possesses, while the hugo 

 worms by '.vhich it is often infested render it a nuisance. Lonibardy Poplar. 



ORDE R CXX X. B A LS A M I FLU ^. The Liquidamlar Tribe. 



Aments raoncp.cious, roundish, with aohlamydeous flowers, 

 Sterile. — Anth. immerou.s, oblong, .subsessile, with scales intermixed. 

 Fektile. — OfO. 2-celled. coUccled into a globe, each surrounded by a few scales. 

 Styles 2, long. Fr. a kind of strobile, composed of the indurated scales and capsules. 

 Caps. 2-beakcd. 2-cclled, opening' between the beaks. Stls. several, winged. 



An order consisting of a single genus of trees. Leaves alternate, palmatc-lobed, with 

 deciduous stipules. The fragrant resin, liquid storax, is the product of several species. 



LIQUIDA'MBAR. 

 Character the same as that of the order. 



Lat. ambar. amber, and liquidum, fluid ; a strong balsamic substance which 

 has been compared to amber, flows from the tree. 



L. stykaci'flua. 



Leaves palmate, witii acuminate, serrate lobes ; veins villous at their bases. 

 The sweet gum or gum-tree is disseminated throughout the U. S. With a 



