ARALIACEAE 225 



1. Myiiophyllum verticillatum L. Whori,ed Water-milfoii,. 

 (Man. p. 666 ; I. F. /. 2618.) Quebec and Ont. to Fla., Minn, and Calif. 

 Also in Eu. and Asia. — Pennsylvania : Bucks. 



2. Myriophyllum spicatum h. Spiked Water-milfoil. ( Man. p. 

 666 ; I. F./. 2617.) In deep water, Newf. to the N. W. Terr., Fla., Iowa, 

 Kans. and Calif. Also in Fu. and Asia. — Pennsylvania : ERIE, Presque 

 Isle. 



3. Myriophyllum tenellum Bigel. Slender Water-milfoil. (Man. 

 p. 666 ; I. F.y. 2620.) Sandy bottoms of ponds and streams, New. to N. 

 J., Pa. and Mich. — Pennsylvania : Pike, Twelve Mile Pond. 



4. Myriophyllum humile (Raf.) Morong. Low WaTer-milfoil- 

 (Man. p. 666; I. F. /. 2621.) In ponds, Me., R. I. to Md. and 111.— 

 Pennsylvania : Monroe, L,ong Pond. 



5. Myriophyllum heterophyllum Michx. Various-leaved WaTER- 

 MILFOIL. (Man. p. 666; I. F. /. 2622.) In ponds, Ont. and N. Y. to 

 Fla., S. Dak., Tex. and Mex. — Pennsylvania : Bucks. 



Order 23. UMBELLALES. 



Androecium of 5 stamens : styles distinct, rarely partially united. 



Fruit fleshy or pulpy, the carpels permanently united. 



Fam. I. Araliaceak. 



Fruit dry, splitting in two carpels at maturity. Fam. 2. Umbelliferae. 



Androecium of 4 stamens: styles united. Fam. 3. Cornaceae. 



Family i. ARALIACEAE Vent. Ginseng Family. 

 Styles 5 : leaves or bracts alternate ; blades not digitately compound, i. Aralia. 

 Styles 2-3 : leaves or bracts whorled ; blades digitately compound. 2. Panax. 



1. ARALIA L. 



Umbels numerous, in terminal or axillary racemes or panicles. 

 Shrub or small tree, with prickle-armed stems : leaflets leathery. 



I. A. spinosa. 

 Large unarmed herb : leaflets membranous. 2. A. racemosa. 



Umbels few, in terminal corymbs or few-rayed umbels. 

 Plants with elongated rootstocks, a peduncle or a leaf arising at intervals 

 from the rootstock. 3. A. nudicaulis. 



Plants with leafy branches arising from the rootstock. 4. A. hispida. 



1. Aralia spinosa L. Hercules' Club. Angelica Tree. (Man. p. 

 668; I. F. f. 2626.) In low grounds and along streams, Conn, to Fla., 

 Ind., Mo. and Tex. — Pennsylvania: Blair; Cambria; Clearfield; 

 Westmoreland ; Delaware ; Chester ; Lancaster ; Bucks ; Alle- 

 gheny. 



2. Aralia racemosa L- American Spikenard. (Man. p. 668 ; I. F. 

 /. 2627.) In rich woods, N. B. to Ga., S. Dak. and Kans. — Pennsylvania : 

 Northampton ; Bucks ; Delaware ; Chester ; Lancaster ; Lu- 

 zerne ; Huntingdon ; Bedford ; Tioga ; Allegheny. 



3. Aralia nudicaulis L. Wild or Virginian Sarsaprilla. (Man. 

 p. 668 ; I. F. /; 262S.) In woods, Newf. to Man., N. C, Neb. and Mo.— 



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