JUGLANDACEAE 103 



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

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



DEI.AWARE ; ALIiEGHENY. 



2. HICORIA Raf. 

 Bud-scales valvate : lateral leaflets mostly falcate. i. H. minima. 



Bud-scales imbricated : lateral leaflets not falcate. 

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

 the fruit freely splitting to the base. 

 Bark close but rough : foliage scurfy 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. ovala. 

 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. microcarpa. 

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



6. H. glabra. 



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

 ory. (Man. p. 324 ; I. F./. 7^52.) In moist woods and swamps, Quebec 

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

 Lancaster; Chester ; York; Dei^aware ; Bucks. 



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

 325 ; I. F. /. 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. P.y. II5S-) I" "ch 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. IIS4-) I1 rich soil, Quebec to Minn., south to Fla. and 

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

 caster ; Chester ; Delaware ; Philadelphia ; Allegheny. 



5. Hicoria microcarpa (Nutt.) Britton. Small- FRUITED Hickory. 

 (Man. p. 325; I. F. /. 1 157.) 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; 1158.) 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. FAGALES. 



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



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

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



