Sullivantia Saxifragaceae 515 



Stamens 10, rarely 8. 



Petals none; flowers sessile, axillary, usually solitary; leaves opposite 



3199. Chrysosplenium, p. 519. 



Petals 5; flowers racemose or paniculate, pedicellate; leaves all basal or alter- 

 nate. 

 Petals entire, or subserrate. 



Capsule 2-celled, 2-beaked 3189. Saxifraga. p. 515. 



Capsule 1-celled 3193. Tiarella, p. 516. 



Petals finely fringed, small; flowers racemose, white. . .3198. Mitella, p. 518. 

 Shrubs; leaves opposite, simple. 



Stamens 20-40 3208. Philadelphia, p. 519. 



Stamens 8-10 3217. Hydrangea, p. 519. 



3186. SULLIVANTIA T. & G. 



1. Sullivantia ohionis T. & G. (Sullivantia Sullivantii (T. & G.) Britt.) 

 Ohio Sullivantia. Map 1065. This species is very local throughout its 

 range and in Indiana it is found only in Clark, Jefferson, and Jennings 

 Counties. It grows in the shade in the wet crevices of perpendicular, shaly 

 cliffs in Clifty Falls State Park in Jefferson County, along Fourteen-mile 

 Creek near its mouth in Clark County, and along the north fork of the 

 Muscatatuck River about three fourths of a mile northeast of Vernon. It 

 has been reported also from Carroll, Cass, and Floyd Counties. 



Ohio and Ind. Reported from 7 counties in Ohio and 3 counties in 

 Indiana. 



3189. SAXIFRAGA [Tourn.] L. Saxifrage 



[Johnson. Revision of North American species of the section Boraphila of 

 Saxifraga. Univ. Minnesota Stud. Biol. Sci. 4: 1-109. 1923. Bush. Some 

 species of Saxifraga. Amer. Midland Nat. 11: 213-235. 1928.] 



Plants of a dry habitat, less than 3 dm high; sepals reflexed 1. S. virginiensis. 



Plants of a wet habitat, usually 5-15 dm high; sepals ascending. . . .2. S. pennsylvanica. 



1. Saxifraga virginiensis Michx. Virginia Saxifrage. Map 1066. This 

 species is restricted to the tops and slopes of the bluffs of the Ohio River 

 and nearby. It is local in its distribution but frequent to common where 

 it is found. It is rather common on the top of the bluff of the Ohio River 

 just north of Fredonia in Crawford County. There are specimens from 

 only four counties but I think that it could be found in other counties, 

 especially Floyd, Harrison, and Jefferson Counties and in western Vander- 

 burgh County. Bush (Amer. Midland Nat. 11: 215-220. 1928.) has divided 

 my specimens into two lots. He calls one lot Saxifraga virginiensis and 

 the other Saxifraga pilosa Haworth. I am not recognizing the latter. 



N. B. to Minn., southw. to Ga. and Tenn. 



2. Saxifraga pennsylvanica L. Pennsylvania Saxifrage. Map 1067. 

 Infrequent to frequent in wet and springy places in woodland and marshes 

 throughout the state except in the southern counties where its habitat is 



