MICHIGAN" FLORA. 



455 



Three-tooth'd 

 Saxifrage. 



Saxifrage. 

 Early S. 

 Swamp S. 



Alum-root. 

 Alum-root. 



Two-leaved 

 Mitrewort. 

 Bishop's Cap. 



Naked M. 



False Mitre- 

 wort. 



Golden Saxi- 

 frage. 



351. tricuspidata, Ketz. U. P. 



"Shore of L. Sup. and northward "—Gray ; Isle Royale— Dr. Lyons and 

 Whitney Cat. 



352. Aizoon, Jacq. U. P. 



"Upper Mich."— Gray; Isle Royale— Lyons, and Whitney. 



353. Virginiensis, Mx. U. P. 



L. Sup.— Can. Cat., etc. 



354. Pennsylvanica, L. Th. 



Bogs. Common. 



HEUCHERA 



355. Americana, L. ( ** ) 



Grand Rapids— Coleman ; Ann Arbor— Winch. Cat. 



35G. hispida, Ph. 



Common in Grand-Saginaw Valley. 



MITELLA 



357. diphylla, L. 



Hillsides in rich woods. Seeds black. 



358. niida, L. 



C. & S. 



Rare. 



c. &s. 



Th. 



Very common. 



Th. 



Shaded swamps in Sphagnum. Racemes sometimes inclined to be panicu- 

 late ; seeds brown. A very delicate and pretty little herb, usually grow- 

 ing under tamaracks and along with Mibes rubrum, Chiogenes hispidula, 

 Smilacina Irifolia, and Salix Candida. The scape frequently bears a 

 small leaf, as if to suggest the derivation of this and the preceding from 



Frequent. 



one earlier form 

 TIARELLA 



359. cordifolia, L. 



Ft. Gratiot; Macomb Co. ; Flint; Stanton (!); and northward. 

 N. & U. P. ; rare in C. & S. W. 



CHRYSOSPLENIUM 



360. American urn, Schw. 



So. Haven; Hubbardston (!); Flint; and north. 



Th. 



Common in 



Infr. 



CRASSULACEyE. 

 (Orpine Family.) 



PENTHORUM 



Ditch stone- 361. sedoides, L. (***) 



crop. ' v ' 



Roadsides and ditches, everywhere. 



L 



Garde 

 pine 



0. & s. 



SEDUM 



a V rde f n r Or! er - 362. TtffopAtttJM, L. ( *** ) 0. & S. 



Escaped from cultivation, as have S. acre and sotae others. 



HAMAMELACE^E. 



{Witch-Hazel Family.) 



HAMAMELIS 



Witch-Hazel. 363. Virginiana, L. (***) 



Th. 



The yellow blossoms open in November after the leaves have fallen. The 

 ripe pods burst with a sharp report, scattering the seeds,— this is fre- 

 quently the case with pods of other plants. Common. 



