FLORA OF MICHIGAN. 89 



350. P. sambucifolia, Cham. & Schlect. 

 Mackinac Island, H. Mann; Keweenaw Co., F. 



*351. P. MALUS, L. Cultivated Apple. 

 Spontaneous in thickets along roadsides. 



121. CRATyEGUS, L. HAWTHORN. WHITE THORN. 

 *352. C. coccinea, L. Th. 



Common. 



* 353. var. mollis, T. & G. Th. 



Frequent in C.; our largest thorn, frequently 20-25 ft. high and a foot in diameter. A tree along the 

 Raisin river in Monroe Co., Wheeler; Ontonagon, Mary H. Clark. 



*354. C. tomentosa, L. Th. 



The form referred to this species is a shrub with large, thick, oval, sharply-serrate leaves, beneath 

 prominently veined, and tapering into a margined petiole; corymbs very straggling and fruit quite 

 small J4 in. Infrequent. 



*355. C. pimctata, Jacq. 



A shrub or low tree very common in the center of the State. Very variable. 



*,356. C. Crus-galli, L. Cockspur Thorn. S. 



Usually a shrub. Used for hedges in tke east. Common. 



122. AMELANCHIER, Medic. JUNE-BERRY. 

 *357. A. Caiiadensis, Torr. & Gray. Shad-bush. Service- berry. Th. 



A shrub or small tree. Fruit variable in size and flavor, frequently delicious, and so well known to 

 the birds that one can seldom find it well ripened. Includes vars.,* Botryapium and rotundifolia. 

 Common. 



* 358. var. (?) oblongifolia, T. & Gr. Th. 



Ionia ; Flint; 8. Mich., Winchell Cat. A low shrub on sandy land. Infrequent. 



359. A. oligocarpa, Koem. U. P. 



Shores of Lake Superior, Gray's Man.; Keweenaw Co., F. 



360. A. alnifolia, Nutt, N. &U.P. 

 Presque Isle, Winchell; Keweenaw Co., F. Rare. 



XXXI. SAXIFKAGAQE^E. SAXIFRAGE FAMILY. 



123. SAXIFRAGA, L. SAXIFRAGE. 



361. 8. tiizoides, L. Yellow Mountain-Saxifrage. U. P. 



''Northern Michigan." Gray. 



362. S. tricuspidata, Retz. U. P. 



"Shore of L. Sup. and northward," Gray; Isle Royale, Dr. Lyons and Whitney Cat. 



363. S. Aizoon, Jacq. U. P. 

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



364. S. Virgiiiiensis, Michx. Early-S. U. P. 

 Li. Sup., Can. Cat.; Keweenaw Co., F. 



*365. S. Peimsylvanica, L. Swamp. S. Th. 



Bogs. Common. 



124. TIARELLA, L. FALSE MITRE-WORT. 



*366. T. cordifolia, L. Th. 



Ft. Gratiot; Macomb Co. ; Flint; Stanton ; and northward. Common in N. & U. P. ; rare in C. & S. W. 



125. MITELLiA, Tourn. MITRE-WORT. BISHOP'S-CAP. 

 *367. M. diphylla, L. Th. 



Hillsides in rich woods. Very common. 



