JUGLANDACEAE 103 



to Ga., and Ark. — Pennsylvania: Northampton; Bucks ; Lebanon; 

 Franklin ; Huntingdon ; Lancaster ; Tioga ; Monroe ; Chester ; 

 Delaware ; Allegheny. 



2. HICORIA Raf. 



Bud-scales valvate : lateral leaflets nio.'^tly falcate. i. H. minima. 



Bud-scales imbricated : lateral leaflets not f&lcate. 

 Middle lobe of the staminate calj'x much longer than the lateral : husk of 

 the fruit freely splitting to the base. 

 Bark close but rough : foliage scurfj' or pubescent. 2. H alba. 



Bark shaggy, separating in long plates : foliage glabrous or puberulent. 

 Leaflets 7-9: nuts pointed at both ends. 3. H. laciniosa. 



Leaflets 3-5 : nuts rounded or notched at the base. 4. H. ovata. 

 Middle lobe of the staminate calyx usually about equal to the lateral : husk 

 of the fruit not freely splitting to the base. 

 Bark shaggy : fruit mostly subglobose : nut thin-shelled : seed sweet. 



5. H. mirrocarpa. 

 Bark close : fruit mostly obovoid : nut thick-shelled : seed bitter. 



6. H. glabra. 



1. Hlcorla minima (Marsh.) Britton. BiTTER-NUT. Swamp Hick- 

 ory. (Man. p. 324 ; I. F.y. i '52.^ In moist woods and swamps, Quebec 

 to Minn., Fla. and Tex. — Pennsylvania: Northampton; Franklin; 

 Lancaster; Chester ; York; Delaware ; Bucks. 



2. Hicoiia alba (L) Britton. White-heart Hickory. (Man. p. 

 325; I. F.y. 1156.) In rich soil, Mass. to Out., 111. and Neb., Fla. and 

 Tex. — Pennsylvania: Northampton ; Franklin ; Lancaster; Hun- 

 tingdon' ; Monroe ; Chester ; Delaware ; Philadelphia. 



3. Hicoria laciniosa (Michx.) Sargent. Big Shag-bark. (Man. p. 

 324; I. F.y. 1155-) In rich soil, N. Y. and Pa. to Ind., Iowa, Kans. and 

 Ind. Terr. — Pennsylvania : Bucks ; Franklin ; Huntingdon ; Lan- 

 caster ; Berks ; York ; Philadelphia ; Allegheny. 



4. Hicoria ovata (Mill.) Britton. Shell-bark Hickory. (Man. p. 

 324; I. F.y. 1/34.) In rich soil, Quebec to Minn., south to Fla. and 

 Tex. — Pen7isylvania : Northampton ; Huntingdon ; Monroe ; Lan- 

 caster ; Chester ; Delaware ; Philadelphia ; Allegheny. 



5. Hicoria microcarpa (Nutt.) Britton, Small-fruiTEd Hickory. 

 (Man. p. 325; I. P\ y. 1157.) In rich woods, Mass. to Mich., south to 

 Va. and Mo. — Pennsylvania: Monroe; Northampton; Lancaster; 

 Franklin ; Chester ; Delaware. 



6. Hicoria glabra (Mill.) Britton. Pig-nut Hickory. (Man. p. 

 325 ; I. F.y ii^S.) In dry or moist woods, Me. to Minn., south to Fla. 

 and Tex. — Pennsylvania : Lancaster; Franklin; Northampton; 

 Chester ; Delaware ; Philadelphia ; York ; Bucks ; Allegheny. 



Order 5. FAaALES. 



Staminate and pistillate flowers in aments. Fam. i. Betulaceae. 



Staminate flowers in aments: pistillate flowers each with an involucre which 

 becomes a cup or bur in fruit. Fam. 2. Fagaceae. 



