144 American Midland Naturalist Monograph No. 7 



1. Heuchera L. — Alumroot 

 1. Calyx 2-5 mm long. 



2. Calyx 2-2.5 mm long, nearly regular; petals white; shaded cliffs; 



s. 111. July-Oct. [H. rugelii Shuttlw.] H. parviflora Bartl. 



2. Calyx 4-5 mm long, oblique; petals greenish or purplish; bluffs 

 and rocky banks, in the s. half of the state, not common. 

 May- June H. hirsuticaulis (Wheelock) Rydb. 



1. Calyx 6-8 mm long, decidedly oblique; river banks, cliffs, or dry 

 woods; s. to Madison, Marion, and Clay counties. May-June. 

 [H. hispida sensu auth., non Pursh; H. americana sensu auth., 

 non L. ; H . richardsonii var. grayana Rosend., Butters & Lakela] 

 H. richardsonii R.Br. 



2. Mitella L. — Miterwort. Bishop's-cap 

 M. diphyUa L. Wooded ravines, not common; chiefly in the n. half 

 of the state^ but also in Jackson, Pope, and Williamson counties. May. 



3. Sullivantia T. & G. 



S. renijolia Rosend. Cliffs, rare; Carroll, De Kalb, Jo Daviess, 

 Stephenson, and Winnebago counties. June-July. 



4. Saxifraga L. — Saxifrage 



1. Sepals becoming reflexed; plants 30-90 cm tall; leaves 10-30 cm 



long, entire or nearly so. 



2. Leaves pilose beneath; petals white, longer than the elliptical 



sepals; filaments filifoiTn; moist shaded sandstone cliffs, rare; 



Gallatin, Jackson, Jo Daviess, La Salle, Ogle, and Union 



counties. May S. forbesii Vasey 



2. Leaves glabrous or nearly so beneath; petals greenish, equalling 

 the deltoid sepals; filaments subulate; meadows, local. May- 

 June S. pennsylvanica L. 



1. Sepals ascending; plants 8-30 cm tall; leaves 2-10 cm long, dentate 

 or crenate; rocky bluffs, rare; Hardin Co S. virginiensis Michx. 



63. Parnassiaceae Dum. — Grass-of-Parnassus Family 



1 . Parnassia L. — Grass-of-Parnassus 

 P. glauca Raf. Wet ground in the n. half of 111. July-Sept. [P. 

 caroliniana sensu auth., non Michx.]. 



64. Adoxaceae Fritsch — Moschatel Family 



1 . Adoxa L. — Musk-root 

 A. moschatellina L. Apple River Canyon, Jo Daviess Co., May 8, 

 "1937, N. C. Fassett 18709: June 18, 1937, F. J. Hermann 8896. 



