142 CALYCANTHACEAE 



to Man., Ga. and Kaas. — Pennsylvania : Northampton ; Bucks ; Phii,- 

 ADELPHiA ; Lancaster ; Frankl,in ; Erie ; Ai,i.egheny. 



16. Ranunculus fascicularis Muhl. Early or Tuft^ed Buttercup. 

 (Man. p. 428; I. F. /. 1621.) In woods, Ont. and N. Eng. to Man., N. 

 C and Tex. — Pennsylvania: Lancaster; Franklin. 



17. Ranunculus hispidus Michx. Hispid Buttercup. (Man. p. 

 428; I. F. /. 1620.) In dry woods, Ont. to the N. W. Terr., Ga. and 

 Ark. — Pennsylvania : Northampton ; Bucks ; Lebanon ; Franklin ; 

 Venango ; Armstrong ; Delaware. 



23. THALICTRUM L. 



Filaments subulate or filiform. 

 Flowers strictly dioecious : leaflets not waxy beneath. 



Roots not yellow : petioles barely dilated at the base. i. T. dioicum. 

 Roots bright yellow : petioles widely dilated at the base. 



2. T. coriaceum. 

 Flowers polygamous : leaflets more or less glandular or waxy beneath. 



3. T. ptnpurascens. 

 Filaments spatulate, often broader than the anthers. 4. T. polyganiutn. 



1. Thalictrum dioicum L. Early Meadow-Rue. (Man. p. 431 ; I. 

 F. y". 1634.) In woods, Lab. and Anticosti, Saskatchewan to Ala. and 

 Mo. — Pennsylvania : Northampton ; Bucks ; Chester ; Lancaster ; 

 Erie; Dklaware ; York; Allegheny. 



2. Thalictrum coriaceum (Britton) Small. Thick-lEaved Meadow- 

 rue. (Man. p. 431 ; 1. F. f. 1635.) In open places, mts. of Pa., Va., N. 

 C. and Ky. — Pennsylvania : Somerset. 



3. Thalictrum purpurascens L. Purplish Meadow-rue. (Man. p. 

 431 ; I. F. /. /6j7. ) In woodlands, N. S. and Anticosti to the Saskatche- 

 wan, Fla. and Ariz. — Pennsylvania: Northampton; Delaware; 

 Huntingdon ; Centre ; Allegheny. 



4. Thalictrum polygamum Muhl. TalL Meadow RuE. (Man. p. 

 431; I. F. / 1638.) Lab. and Quebec to Fla. and to Ohio. — Penn- 

 sylvania: Monroe; Northampton; Bucks; Chester; Lancaster; 

 Schuylkill; Columbia; Franklin; Perry; Erie; Delaware; 

 Allegheny. 



Family 6. MENISPERMACEAE DC. Moonseed Family. 

 1. MENISPERMUM L. 

 1. Menispermum Canadense L. Canada Moonseed. (Man. p. 434; 

 I. F. _/! 1649-) 111 woods along streams, western Quebec to Man., Ga. 

 a.r\A h.r)g..— Pennsylvania : Northampton; Bucks; Delaware; Ches- 

 ter ; Lancaster ; Allegheny. 



Fam. 7. CALYCANTHACEAE Liudl. Strawberry-shrub Family. 

 1. BUTNERIA Duham. 

 1. Butneria fertilis ( Walt. ) Kearney. Smooth Strawberry-shrub. 

 (Man. p. 435 ; I. F. /. 1651.) In rich woods. Pa. to Ga. and Ala. — Penn- 

 sylvania : Franklin, near Strasburg. 



