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GENTIANACEAE (GENTIAN FAMILY) 



F. americana, White Ash. Large and very valuable forest tree, 

 with gray furrowed bark and smooth gray branchlets; leaflets 5-9 

 petiolate, ovate or lanceolate-oblong, pointed, entire or sparingly 

 toothed, paler beneath; fruit marginless below, abruptly dilated into a 

 lanceolate, oblanceolate, or wedge-oblong wing. Rich woods. April, 

 May. 



Fraxinus; a, and b, F. americana, White ash; ci, winter bud of F. nigra, 

 Black ash; C2, winter bud of F. quadrangulata, Blue ash. 



F. nigra. Black Ash. Small or middle-sized tree; leaflets 7-1 1, 

 the lateral ones sessile, oblong-lanceolate, tapering to a point, serrate, 

 green and smooth both sides; fruit linear-oblong or narrowly elliptical, 

 blunt at both ends. Swamps. 



GENTIANACEAE (Gentian Family) 



Smooth herbs, with opposite or alternate leaves, regular flowers 

 with stamens as many as the lobes of the corolla, a i-celled ovary, 

 and fruit a capsule. 



MENYANTHES 



A perennial herb, with creeping rootstock sheathed by the base 

 of the long petioles which bear 3 oval or oblong leaflets. White or 



