514 



Saxifragaceae 



Penthorum 



of the New York Botanical Garden, Purdue University, and Wabash 

 College. In 1922 I found it in Harrison County on a very narrow ledge 

 of rock near the top of the cliff along the Ohio River, in section 14 about 

 4 miles southeast of Laconia. The cliff at this place is about 300 feet above 

 the river. I have had it in cultivation since that time and the flowers are 

 nearly white to faintly pink. In 1936 R. M. Tryon, Jr., found it in Perry 

 County on the sandstone cliffs near Magnet. 

 Pa., N. Y. to Ind., southw. to N. C. and Ga. 



3. Sedum ternatum Michx. Mountain Stonecrop. Map 1063. This 

 species is rather frequent in the southern part of the state, becoming rare 

 or absent in the northern counties. It is found in the shade in moist soil, 

 usually at the bases of wooded ravines and on wooded slopes and rocky, 

 wooded cliffs. 



Conn, to Mich., southw. to Ga. and Tenn. 



3173. PENTHORUM L. 



1. Penthorum sedoides L. Ditch Stonecrop. Map 1064. Frequent to 

 very frequent throughout the state in firm soil in wet places. It is found 

 in roadside ditches, fallow fields, and low places in woodlands about ponds 

 and sloughs. 



N. B. to Minn., southw. to Fla. and Tex. 



117. SAXIFRAGACEAE Dumort. Saxifrage Family 



Herbs. 



Stamens 5. 



Flowers solitary on long, scapelike peduncles, white, the petals 10-18 mm long; 



staminodia present 3203. Parnassia, p. 519. 



Flowers paniculate, small, the petals less than 10 mm long; staminodia lacking. 



Leaf blades glabrous; ovary 2-celled 3186. Sullivantia, p. 515. 



Leaf blades more or less pubescent; ovary 1-celled. .3195. Heuchera, p. 516. 



