3. Ranunculaceae 57 



5. Fruiting heads cylindrical, more than twice as long as 

 wide; style 1 mm long; leaf-divisions narrow, cuneate; 

 roadsides and open woods in the n. half of the state, 

 s. to Macoupin and Coles counties. May-July. Long- 

 fruited Anemone A. cylindrica A.Gray 



5. Fruiting heads ellipsoid, about twice as long as wide; 

 style 1.5-2 mm long; leaf-di\isions ovate or ovate- 

 lanceolate; woods throughout 111. June-Aug. Tall 

 Anemone A. virginiana L. 



3. Stem simj)le, one-flowered, 10-30 cm tall, from a slender 

 rhizome; stem-leaves stalked; basal leaf solitary, appearing 

 later than the flower; sepals glabrous; achenes pubescent, 

 fusiform, the hooked beak 1-2 mm long; rich woods in n. 

 111., extending southward to Kankakee and La Salle count- 

 ties. Apr. -May. Wood Anemone [A. nemorosa of auth., 



non L.; A. quinquejolia var. interior Fern.] 



A. quinquejolia L. 



13. Anemonella Spach 



A. tJialictroides (L.) Spach. Rue-anemone. Dry open woods, local. 

 Apr.-May. Plants with petaloid stamens are found occasionally. 



14. Helleborus L. — Hellebore 

 H. viridis L. A garden escape; native of Europe. 



15. Hepatica Hill 



1. Leaf-lobes acute or acutish; flowers varying from purplish to 

 white; woods, not uncommon. Mar. -May. [H. acuta (Pursh) 

 Britt.] H. acutiloba DC. 



1. Leaf-lobes rounded at the apex; woods, n.e. 111.; Cook, Du Page, 

 Lake, McHenry, and Winnebago counties. [H. triloba sensu 

 auth., non Chaix] H. americana (DC.) Ker 



16. Clematis L. 

 {Viorna Reichenb.; Atragene L.) 

 1. Flowers solitary, nodding; sepals purplish. 



2. Leaves conspicuously reticulate beneath; sepals thick, leatheiy, 

 the tips recurved, marginless or only narrowly margined; 

 fruiting styles glabrous or nearly so; moist woods and thickets, 

 common. June-Aug. Leather-flower ...C. pitcheri Torr. & Gray 



2. Leaves thin, not conspicuously reticulate. 



3. Sepals thick, leathery, 1.5-2.5 cm long; fruiting styles plu- 

 mose; thickets and stream banks, rare; Richland (-o.. R. 

 Ridgway in 1910. June-July. [I'iorna ridgwayi Standi.] 

 C. viorna L. 



