CKOWFOOT FAMILY. 515 



Alabama: Mountain region. Madison County, Huutsville. Flowers in May. 

 Perennial. 

 Type locality : " Grows in St. John's Berkley." 

 Herb. Geol. Surv. Herb. Mohr. 



Ranunculus fascicularis Mubl. Cat. 54. 1813. Early Buttercup. 



Gray, Man. ed. 6, 43. Coulter, Contr. Nat. Herb. 2 : 9. Gray, Syn. Fl. N. A. 1, pt. 

 1 : 37. 



Alleghenian to Louisiauian area. Ontario and New England west to Minnesota, 

 south to Virginia, the Ohio Valley, Missouri, and Tennessee to Alabama, Louisiana, 

 Arkansas, and Texas. 



Alabama: Tennessee Valley. Rocky woods. Damp or dry calcareous soil. .Tack- 

 son County, Scottsboro. Madison County, Montesano. April, May; not frequent. 

 Perennial. 



Type locality : " Pensylvania." 



Herb. Geol. .Surv. Herb. Mohr, 



Ranunculus muricatus L. Sp. PI. 1 : 555. 1753. Prickly-fruited Buttercup. 



Ell. Sk. 2: 64. Gray, Man. ed. 6, 44. Chap. Fl. 7. Gray, Syn. Fl. N. A. 1, pt. 1 : 38. 



Europe. 



Caroliuian and Louisiauian areas. From Virginia to California and southern 

 Oregon; naturalized along the coast from Virginia to Florida and to Louisiaua. 



Alabama: Coast plain. Ditches, suburbs of Mobile. April, May. Annual. 



Type locality : " Hab. in Europae australis lossis et humentibus." 



Herb. Geol. Surv. Herb. Mohr. 



Ranunculus parviflorus L. S]). PI. ed. 2, 1 : 780. 1763. 



Banunculus trachyspermus Ell. Sk. 2 : 65. 1821-24. Small-flowered Crowfoot. 



South Eirope. 



Carolinian and Louisiauian areas. Naturalized from Maryland to Florida, west to 

 Arkansas. 



Alabama: Central Pine belt to Coast phiin. Damp waste ground near dwellings. 

 Tuscaloosa, Montgomery, and Mobile counties. Flowers in April; common. Annual. 



Type locality : " Hab. in Europa australi."' 



Herb. Geol. Surv. Herb. Mohr. 



Ranunculus acris L. Sp. PI. 1:554. 1753. Tall Buttercups. 



Gray, Man. ed. 6, 44. 

 Europe. 



Alleghenian to Louisiauian area. Most common in Canada and the Northern States. 

 Alabama: Adventive. Grass ]tlots. Mobile. May; rare. Perennial. 

 Type locality : " Hab. in Europae pratis, pascuis." 

 Herb. Geol. Surv. 



BATRACHIUM S. F. Gray, Nat. Arr. Br. PI. 2:720. 1821. 



About 20 species, aquatics; temperate regions of the Northern Hemisphere. 

 Batrachium divaricatum (Schrauk.) Wimra. Fl. Schles. 10. 1841. Frogweed. 



Ranunculus diraricatus Schrauk. Baier. Fl. 2 : 104. 1789. 



B. circinatus Sibth. ; .7. E. Smith, Fl. Brit. 2, 596. 1800. 



li. aquatilis var. divaricatus Gray, Mau. ed. 2, 7. 1856. 



Gray, Mau. ed. 6, 40. Gray, Syn. Fl. N. A. 1, pt. 1:21. 



Europe, Asia, North Africa. 



Canadian zone to Louisiauian area. Manitol)a to British Columbia ; eastern United 

 States west to Nebraska, Colorado, Nevada, and Oregon, south to Alabama and 

 western Texas. 



Alabama: Coast plain. Gently-flowing water. Mobile County, estuary Mobile 

 River and Dog River. Flowers white. May to July; not frequent. Perennial. 



Type locality: " StilleWasser allenthalben [Bavaria]." 



Herb. Mohr. 



THALICTRUM L. Sp. PI. 1:545. 1753. Meadow Rue. 



About 70 species, temperate regions Northern Hemisphere. Perennial herbs. 

 Thalictrum clavatum DC. Syst. 1: 171. 1818. Mountain Meadow RuE. 



Gray, Man. ed. 6, 39. Chap. Fl. 6. Gray. Syn. Fl. N. A. 1, pt. 1 : 15. 

 Carolinian area. Southern Alleghenies from West Virginia to Georgia. 



