82 LILIACEAE 



1. ALLIUM h. 



Ovule I in each cavity. i. A. tricoccum. 



Ovules 2 in each cavity. 

 Bulbs with membranous outer coats. 

 Umbel horizontal or nodding during anthesis : plants scapose. 



2. A. cernuum. 



Umble erect : plants caulescent. 

 Sepals not keeled : inner filaments toothed under the anthers. 



3. A. vineale. 

 Sepals keeled : inner filaments not toothed. 4. A.carinalum. 



Bulbs with fibrous outer coats. 5. A. Canadense. 



1. Allium tricoccum Ait. Wil,D IvEEK. (Man. p. 262 ; I. F./. gi)2.) 

 In rich woods, N. B. to Minn., N. C. and Tenn. — Pennsylvania: Phii,a- 

 DBi<PHiA, Wissahickon ; Dblaware ; Lancaster ; Dauphin ; Berks ; 

 Blair ; Clearfield ; Allegheny ; Somerset ; Bucks ; Erie. 



2. Allium cemuum Roth. Nodding Wild Onion. (Man. p. 263; 

 I. F./. 99^.) On banks and hillsides, N. Y. to Minn, and B. C, W. Va., 

 Ky., S. Dak., and in the Rocky Mts. to N. Hex. — Pennsylvania : Hunt- 

 ingdon ; Franklin ; Lancaster ; Perry ; Allegheny. 



3. Allium vineale L- Wild or Field Garlic. (Man. p. 263 ; I. F. 

 /. gg6. ) In fields and meadows. Conn, to Ohio, Mo. and Va. Nat. from 



Eu. — Pennsylvania : Northampton ; Lancaster ; Franklin ; Hunt- 

 ingdon ; Delaware ; Allegheny. 



4. AUium carinatum L. KEELED Garlic. (Man .p. 1046.) In fields, 

 eastern Pa. Introduced from Eu. — Pennsylvania: Bucks. 



5. Allium Canadense L. Meadow Garlic. (Man. p. 263; I. F. 

 f. 997.) In meadows and thickets, Me. to Minn., Fla., La. and Ark. — 

 Pennsylvania : Lancaster ; Huntingdon ; Franklin ; Delaware ; 

 York ; Allegheny. 



2. LILIUM L. 



Flower or flowers erect : sepals and petals narrowed into claws. 



I. L. Philadelphicum. 

 Flower or flowers horizontal or nodding : sepals and petals without claws. 

 Leaf-blades finely roughened on the margins and nerves beneath ; sepals 



and petals not recurved. 2. L. Canadense. 



Leaf-blades smooth : sepals and petals recurved. 3. L. superbum. 



1. Lilium Philadelphicum L. Red or Wood Lily. (Man. p. 265 ; 

 I. F./. 1003.) In dry woods, Me. to Ont., N. C. and W. Vs..— Pennsyl- 

 vania : Monroe ; Tioga ; Huntingdon ; Somerset ; Franklin ; Lan- 

 caster ; Lackawanna ; Pike ; Northampton ; Chester ; Delaware. 



2. Lilium Canadense L. Wild Yellow Lily. Canada Lily. 

 (Man. p. 265 ; I. F. / 1006.) In swamps and meadows, N. S. to Minn., 

 Ga. and Mo. — Pennsylvania : Northampton ; Bucks ; Delaware ; 

 Franklin ; Luzerne ; Huntingdon ; Venango ; Somerset ; Lan- 

 caster ; Chester ; Allegheny. 



3. Lilium superbum L. Turk's-cap Lily. Man. p. 265; I. F. 

 /. 1008.) In meadows and marshes. Me. to Minn., N. C. and Tenn.— 



