RANUNCULACEAE 133 



1. MAGNOLIA L. 



Corolla white : styles or stigmas stout, persistent : follicles tapering. 



Leaf-blades elliptic-oblanceolate or obovate-lanceolate, 2-6 dm. long, mem- 

 branous : fruit 1-1.5 dm. long. i. M. tripetala. 

 Leaf- blades oblong, elliptic or oval, rarely broadest below the middle, 5-15 

 cm. long, firm : fruit 3-5 cm. long. 2. M. Virginiana. 

 Corolla greenish or yellow : styles or stigmas slender, deciduous : follicles 

 rounded. 3. M. acuminata. 



1. Magnolia tripetala L. Umbrei,i.a-tree. (Man. p. 409; I. F. /. 

 ^539-) lo woods, Pa. to Ga., Ark. and Miss. — Pennsylvania: Lan- 

 caster ; York. 



2. Magnolia Virginiana L. Laurei. Magnowa. Sweet Bay. (Man. 

 p. 409; I. F. y". 1340.) In swamps, eastern Mass. and southward, mainly 

 east of the Alleghenies to Fla., west through the Gulf States to Ark. 

 and Tex. — Pettnsylvania : Bucks ; Montgomery ; Chester ; Lancas- 

 ter ; Lebanon ; Cumberland ; Adams ; Franklin ; Delaware. 



3. Magnolia acuminata L. Cucumber Tree. (Man. p. 410; I. F. 

 /. ^54T.) In woods, N. Y. to 111., N. C. and Ark. — Pennsylvania : Frank- 

 lin ; Huntingdon ; Lancaster ; Centre ; Clinton ; Tioga ; Wash- 

 ington ; Somerset ; Allegheny. 



2. LIRIODENDRON L. 

 1. Liriodendron Tulipifera L. Tulip-Tree. (Man. p. 410 ; I. F. /. 

 1542,^ In woods, Vt. to Mich., R. I., Fla., Ark. — Pennsylvania : North- 

 ampton; Bucks; Chester; Lancaster; Monroe; Huntingdon; 

 Bedford ; Delaware ; Allegheny. 



Family 4. ANONACEAE DC Custard-apple Family. 

 1. ASIMINA Adans. 



1. Asimlna triloba (L. ) Dunal. Papaw. (Man. p. 410 ; I. F./. 1543. ) 

 Along streams, Ont. to Mich., N. J., Pa. to Fla. and Tex. — Pennsyl- 

 vania : Montgomery ; Lancaster ; York ; Dauphin ; Franklin ; 

 Huntingdon, at 1,100 ft.; Fayette; Allegheny; Chester; Dela- 

 ware. 



Family 5. RANUNCULACEAE Juss. Crowfoot Family. 



A. Fruit a follicle or a berry : carpels with several ovules or with only i or 

 2 ovules in genera Nos. i and 6. 

 a. Flowers regular. 

 * Leaf-blades palmately nerved or palmately compound. 

 Petals wanting. 

 Carpels ripening into a head of red berries. r. Hydrastis. 



Carpels ripening into a head of dry follicles. 2. Caltha. 



Petals present. 

 Petals flat, linear. 3. Trollius. 



Petals tubular, at least near the base. 

 Plants caulescent : sepals persistent. 4. Helleborus. 



Plants scapose : sepals deciduous. 5. Cammarum. 



