470 RKPORT OF NEW JERSEY STATE MUSEUM. 

 Order ROSALES. 



Family CRASSULACE^.* 



PENTHORUM L. 



Penthorum sedoides L. Ditch Stonecrop. 



Penthorum sedoides Linnseus, Sp. PI. 432. 1753 [Virginia]. — Knieskern 15. — 

 Britton 104. 



Common in swamps and ditches of the northern counties and 

 less frequently southAvard in the Middle district. 



Fl. — Apparently June into September. Fr. — August into 

 autumn. 



Middle District. — Spring Lake, New Egypt, JMedford (S), Kaighns Pt., 

 Washington Park, Repaupo (C). 



Family PARNASSIACE.^. Grass of Parnassus. 



PARNASSIA L. 

 Parnassia caroliniana Michx. Grass-of-Parnassus. 



Parnassia Caroliniana Michaux, Fl. Bor. Am. I. 184. 1803 [Carolina]. — Knies- 

 kern 8. — Willis 22. — Britton 102. — Keller and Brown 169. 



Frequent or locally common in the northern counties in 



swamps or wet meadows ; known from within our limits only 



from Xew Egypt, where it was found by Dr. P. D. Knieskern. 



Family SAXIFRAGACE.E. Saxifrages. 



Key to the Species. 



a. Leaves all basal. 



b. Flowers white, plant 1-3 dm. high. Saxifraga virginiensis, p. 471 



hb. Flowers greenish, plant 3-9 dm. high. 

 c. Stamens 10, anthers yellowish green. 



Saxifraga pennsylvanica, p. 471 



cc. Stamens 5, anthers bright orange. Heitchera americana, p. 471 



aa. A single pair of leaves about the middle of the scape, in addition to the 



basal ones, flowers white. Mitella diphylla, p. 472 



aaa. Small, creeping, semi-aquatic plants, with crenate leaves ; no petals, 



anthers bright orange. ■ Clirysosplenimn americantim, p. 472 



* The minute Tillcea aquatica was found by Nuttall on tidal mud along the 

 Delaware above Philadelphia, but only on the Pennsylvania side, so far as I 

 can ascertain. It has not been collected there recently. 



