Trees of New York State 365 



sepals and jjctals generally of tlie same color, imbricated in the bud, hypogy- 

 nous, deciduous; stamens numerous, iudiricated, inserted on the elongated 

 receptacle; pistils numerous, similarly arranged, inserted above the stamens. 

 Fruit an aggregate head of 1-2-seeded follicles or samaras forming a naked, 

 cone-like structure, the axis marked below by the sears of the deciduous sta- 

 mens and jicriaiitli-lobi^. 



KEY TO THE GENERA page 



1. Leaves entire or auriculate at the base; anthers in trorse ; carpels fleshy at 



maturity, dehiscent, persistent MaRnoha 305 



1. Leaves 4-6 lobed; anthers extrose; carpels dry at maturity, indehi scent, 



deciduous Liriodendron 365 



THE MAGNOLIAS. Genus MAGNOLIA L. 

 Trees or .slu-ul)s with smooth or scaly l)ark, branchlets encireled 

 l)y stijiular scars, stipular membranous bud scales, and showy ter- 

 minal flowers. The genus includes some twenty species, natives 

 of eastern North America, Mexico and Asia. Seven species are 

 indio-onous to the eastern states, two of wliicli occur in New York 

 State. 



Lcav/s alternate, deciduous or i)ersistent, simple, entire or auriculate at 

 the base, often minutely punctate. Flowers perfect, hypogynous, terminal, 

 siiowy, ajipearing before or after the leaves; sepals 3, spreading or reflexed; 

 petals 0-]2, concave, erect or spreading, arranged in series of 3; stamens 

 numerous, mth short filaments and linear anthers, early deciduous; pistils 

 numerous, inserted above the stamens on the receptacle, consisting of a 

 1 -celled, 2-ovuled, sessile ovary and a short recurved style. Fruit an aggre- 

 gate, scarlet or rusty-brown cone consisting of coalesced, drupaceous, per- 

 sistent follicles which dehisce at maturity on the dorsal suture; seeds scarlet, 

 drupe-like, compressed, albuminous, suspended from the follicles by thin cords 

 of uncoiled spiral vessels. 



KEY TO THE SPECIES page 



1. Leaves oval or broadly lanceolate, thick, subpersistent, 4-6 inches long 



M. virginiana 217 



1. Leaves ovate to oblong-oval, thin, deciduous, 4-10 inches long 



M. acuminata 21!) 



THE TULIP TREES. Genus LIRIODENDRON L. 



Trees wdth deeply furrowed brown bark, branchlets encircled 

 by stipular scars, stipular membranous bud-scales, lobed truncate 

 leaves, and a strobilus of samaroids. The genus includes but two 

 species, one widely distributed in the eastern United States, the 

 other in central China. 



Leaves alternate, deciduous, simple truncate, hejirt-shaped or somewhat 

 cuneate at the base, truncate at the a]iex by a broad shallow sinus, sinuately 

 4- (rarel\- (i-^) lol)ed. Fhnccrfi perfect, hypogynous, terminal, showy, appearing 

 after the leav(>s; sejials 3, greenish white, concave, erect or spreading, early 

 deciduous; petals 6 in 2 series, erect, early deciduous; stamens numerous, 

 with filiform filament and linear, 2-celled anthers; pistils numerous, inserted 



