142 CALYCANTHACEAE 



to Maa., Ga. and Kaus. — Pennsylvania : Northampton ; Bucks ; Phii<- 

 ADEivPHiA ; Lancaster ; Frankwn ; Erie ; Allegheny. 



le.^Ranunculus fascicularls Muhl. Early or Tufted Buttercup. 

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

 C. and Tex. — Pennsylvania : Lancaster ; Frankwn. 



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

 428 ; I. F. /. /620. ) In dry woods, Ont. to the N. W. Terr., Ga. and 

 Ark. — Pennsylvania : Northampton ; Bucks ; Lebanon ; Frank;i,in ; 

 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. purpurascens. 

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



1. Thallctrum dioicum L. Early Meadow-RuE. (Man. p. 431 ; I. 

 F. f. i6s4. ) In woods, Lab. and Anticosti, Saskatchewan to Ala. and 

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

 Erie; Delaware; York; Allegheny. 



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

 RUE. (Man. p. 431 ; 1. F. /. 163^.) In open places, mts. of Pa., Va., N. 

 C. and Ky. — Pennsylvania : Somerset. 



3. Thallctrum purpurascens L. Purplish Meadow-rub. (Man. p. 

 431 ; I. F. /! /(Jj/. ) In woodlands, N. S. and Anticosti to the Saskatche- 

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

 Huntingdon ; Centre ; Allegheny. 



4. Thallctrum polygamum Muhl. Tall Meadow Rue. (Man. p. 

 431 ; I. V. f /6j8. ) 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. Menlspermum Canadense L. Canada MoonsEED. (Man. p. 434; 

 I. F. y. /6^c>.) In woods along streams, western Quebec to Man., Ga. 

 and Aik.— Pennsylvania : Northampton; Bucks; Delaware; Ches- 

 ter ; Lancaster ; Allegheny. 



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

 1. BUTNERIA Duham. 

 1. Butneriafertills (Walt.) Kearney. Smooth Strawberry-shrub. 

 (Man. p. 435 ; I. F. / i6jr.) In rich woods. Pa. toGa. and K\&.— Penn- 

 sylvania : Franklin, near Strasburg. 



