132 American Midland Naturalist Monograph No. 2 



13. Anemonella Spach 



{Svndesmon Hoffmg.) 

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

 May. [Thalictrum anemonoides Michx.] 



14. Hepatica Hill 

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



not uncommon. Apr. -May [H. acuta (Pursh) Britt.] 



H. acutiloba DC. 



1. Leaf-lobes rounded at the apex; woods, n.e. III. [H. triloba sensu auth., 



non Chaix} H. americana (DC.) Ker 



15. Clematis L. 



{Viorna Reichenb.; Atragene L.) 

 1. Flowers solitary, nodding; sepals purplish. 



2. Leaves conspicuously reticulate beneath; sepals thick, leathery, 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 T. &: G. 



2. Leaves thin, not conspicuously reticulate. 



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

 and stream banks, rare, s. 111. June-July. [Viorna ndgwayi Standi.] 



C. viorna L. 



3. Sepals thin, 3-4.5 cm. long, with wide undulate or crisped margins; 

 fruiting styles pubescent but not plumose; s. 111., not common. Pulas- 

 ki Co., Brendel C. crispa L. 



1. Flowers panicled; sepals white, thin, spreading, 8-12 mm. long; moist 

 ground, local. July-Aug. Virgin's Bower C. v'lrgintana L. 



63. Nelumbonaceae Lindl. — Lotus Family 



1 . Petals and sepals each 3-4. 



2. Leaves all peltate, entire, floating; stamens 12-18; carpels 4-18 1. Brasenia 



2. Submersed leaves dissected; stamens 6; carpels 2-3 2. Cahomha 



1. Petals and stamens numerous; sepals 4-5; leaves orbicular, 20-90 cm. broad; flowers 

 pale yellow, 10-25 cm. in diameter; carpels immersed in a top-shaped receptacle 

 3. N dumbo 



1. Brasenia Schreb. 



B. schreberi Gmel. Watershield. Ponds and slow streams, rare. Lnke and 

 McHenry counties. June-July. 



2. Cabomba Aubl. 



C. caroliniana Gray. Ponds, s. 111., rare. Mt. Carmel, Oct. 12, 1876, 

 Schneck 40. 



3. Nelumbo Adans. 



{I\chm)hitim Juss.) 

 N. lutea (Willd.) Pers. American Lotus. Shallow water and muddy 

 shores, local. July-Aug. [Nymphaea pentapetala Walt., based on a monstros- 



