I Lie ACE AE 203 



6. Rhus radicana L. Poison Ivy or Oak. (Man. p. 6oi ; I. F. /. 

 ^353-) Thickets and along fences, N. S. to Fla., Minn., Neb. and Ark. 

 — Peyinsylvania : Northampton ; Bucks ; Delaware ; Chester ; Lan- 

 caster ; Dauphin ; Lebanon ; Berks ; Monroe ; Huntingdon ; 

 Allegheny. 



2. COTINUS Adans. 



1. CotinusCotmus (L.). American or Wild S:moke-Tree. (Man. 

 p. 6o2 ; I. F. y. 2jj^.) In open woods, Mo. and Ind. Terr, to Tenn. and 

 Ala. Adv. eastward. — Pennsylvania: Northampton, Easton, escaped. 



Family 4. ILICACEAE Lowe. Holly Family. 

 Corolla of partially united petals : petals oval to obovate. i. Ilex. 



Corolla of distinct petals : petals linear. 2. Ilicioides. 



1. ILEX L. 



Leaves persistent, evergreen ; blades thick. 

 Nutlets ribbed : leaf-blades spiny-toothed. i. I. opaca. 



Nutlets not ribbed : leaf-blades not spiny-toothed. 2. /. glabra. 



Leaves deciduous ; blades thin. 

 Nutlets ribbed. 3. /. vionticola. 



Nutlets not ribbed. 

 Staminate and pistillate flowers short-pedicelled. 4. /. verticillala. 



Staminate flowers long- and slender-pedicelled. 5. /. laevigata. 



1. Ilex opaca Ait. American Holly. (Man. p. 603 ; I. F. /. 23^6.) 

 In moist woods, southern Me. to Fla., Pa., Mo. and Tex. — Pennsylvania : 

 Bucks ; Delaware ; Chester ; Lancaster ; York ; Dauphin. 



2. Ilex glabra (L.) A. Gray. Inkberry. Evergreen Winter- 

 BERRY. (Man. p. 603 ; I. F. f. 2jjg.) In sandy soil, eastern Mass. to 

 Fla., west to La., mainly near the coast. — Pefinsylvania : Bucks, Bristol. 



3. Ilex monticola A. Gray. Large-LEaved Holly. (Man. p. 604; 

 I. F. /. 2j6i.) Mountain woods, N. Y. and Pa. to N. C. and Ala. — Pemi- 

 sylvania : Lackawanna ; Wayne ; Monroe ; Centre ; Dauphin, Cold 

 Springs ; Bedford ; Somerset. 



3a. I. monticola mollis (A. Gray) Britton. (Man. p. 604.) In 

 mountain woods. Pa. to Ga.— Susquehanna ; Pike ; Monroe ; Lacka- 

 wanna ; Blair. 



4. Ilex verticillata (L.) A. Gray. Virginia WinTer-berry. Black 

 Alder. (Man. p. 604 ; I. F. /. 2362.) In swamps, N. S. to Fla., Ont., 

 Wis. and Mo. — Pennsylvania : Lackawanna ; Monroe ; Luzerne ; 

 Northampton ; Bucks ; Montgomery ; Delaware ; Chester ; Lan- 

 caster ; Lebanon ; Franklin ; Bedford ; Venango. 



4a. I. verticillata cyclophylla Robinson. Monroe ; Luzerne ; Erie ; 

 Bucks. 



4b. I. verticillata padifolia S. Wats. (Man. p. 604.) Northern N. 

 Y. to Pa. — Lancaster, McCall's Island ; York ; Venango. 



5. Ilex laevigata (Pursh) A. Gray. Smooth Winter-berry. (Man. 

 p. 604 ; I. F. f. 2363. ) In swamps, Me. to Pa. and Va. — Pennsylvania : 

 Bucks ; Lancaster ; Monroe ; Schuylkill ; Alleghen\\ 



