MYEICACEAE 335 



6. Hicoria pallida Ashe. Tree becoming 35 m. tall, the pale bark very rough: 

 leaflets 7-9, the blades of the lateral ones lanceolate to ovate-lanceolate, 5-16 cm. 

 long: scaly-scurfy beneath: staminate aments slender, 8-12 cm. long: fruits sub- 

 globose, oval or obovoid-pyriform, 3-4.5 cm. long, the bark relatively thin: nut 

 smooth, rather thick-shelled. 



In dry soil, Virginia to Tennessee, Florida and Alabama. 



7. Hicoria dlba (L.) Britton. Tree becoming 30 m. tall, the bark with flat 



ridges: leaflets 7-9, the blades of the lateral ones oblong or oblong-lanceolate, 8-15 



cm. long: staminate aments stout, 10-15 cm. long: fruits globose or globose-obovoid, 



4-6 cm. in diameter, the husk very thick: nut angled, thick-shelled, the seed svreet. 



In stony or rich soil, Massachusetts to Ontario, Nebraska, Florida and Texas. Mocker 

 NOT. White-heaet Hickoey. 



8. Hicoria laciniosa (Michx.) Sarg. Tree becoming 40 m. tall, the bark 

 separating in narrow plates; leaflets 7-9, or rarely 5, the blades of the lateral ones 

 oblong or oblong-lanceolate 10-20 cm. long: staminate aments stoutish, 9-20 cm. long: 

 fruits broadly oblong or oblong-obovoid, 5-8' cm. long, the husk very thick: nut 

 broadly oblong, thick-shelled, the seed sweet. 



In rich soil. New York to Iowa, Kansas, Pennsylvania and Oklahoma. King-nut. 

 Big Shag-baek. 



9. Hicoria ovata (Mill.) Britton. Tree becoming 40 m. tall, the bark separat- 

 ing in large plates: leaflets 5, or rarely 7, the blades of the lateral ones oval to 

 oblong-lanceolate, 10-15 cm. long: staminate aments slender, 9-15 cm. long: fruits 

 subglobose, 3-5 cm. thick, the husk thick: nut slightly angled, thin shelled, the seed 



sweet. 



In rich soil, Quebec to Minnesota, Kansas, Florida and Texas. Shell-baek Hickoey. 

 Shag-baek. 



10. Hicoria Carolinae-septentrionalis Ashe. Tree becoming 40 m. tall, the 

 bark separating in very long plates: leaflets 3-5, the blades of the lateral ones 

 lanceolate, sometimes narrowly so, 6-15 cm. long: staminate aments slender, 5-16 

 cm. long: fruits subglobose, 2.5-3.5 cm. thick, the husk thick: nut angled, thin- 

 shelled, the seed sweet. 



In sandy or rocky woods or' bottoms, Delaware to Kentucky, Georgia and Alabama. 

 Shag-baek. 



11. Hicoria microcdrpa (Nutt.) Britton. Tree becoming 25 m. tall, the bark 

 separating in thin plates: leaflets 5-7, the blades of the lateral ones oval, oblong or 

 ovate-lanceolate, 6-14 cm. long: staminate aments slender, 6-14 cm. long: fruits 

 subglobose, 2-2.5 cm. thick, the husk thin: nut barely angled, thin-shelled, the seed 

 sweet. 



In rich woods, Massachusetts to Michigan, Missouri and Georgia. 



12. Hicoria glabra (Mill.) Britton. Tree becoming 60 m. tall, the bark close, 

 in flat ridges: leaflets mostly 3-7, the blades of the lateral ones oblong or oblong- 

 lanceolate, 7-15 cm. long, acuminate, green beneath, glabrous (or larger and hirsute, 

 H. glabra hirsuta Ashe) staminate aments 6-10 cm. long: fruits subglobose, obovoid 

 or pyriform, 3.-5-5 em. long, the husk thinnish: nut angled, thick-shelled, the seed 

 astringent. 



In woods, Maine to Minnesota, Florida and Texas. Pigndt Hickoey. 



13. Hicoria villosa (Sarg.) Ashe. Tree becoming 30 m. tall, the bark deeply 

 furrowed: leaflets 5-9, the blades of the lateral ones mainly oblong to oblong-oval, 

 8-12 cm. long, pale and scaly beneath: staminate aments 5-10 cm. long: fruits 

 obovoid or globose-obvoid, about 2.5 cm. long, the husk thickish: nut somewhat 

 angled, thick-shelled. 



In open woods, Missouri and Arkansas. 



Order 4. LEITNERIALES. 



Dioecious shrubs or trees, with a watery sap, slightly furrowed bark and 

 terete pithy branchlets. Leaves alternate: blades entire, leathery-membranous, 



