MICHIGAN FLORA. 



453 



Wild Red R. 



Black R. 

 Thimbleberry 



310. 

 317. 



strigosus, Mx. 



Variable. Many seedlings in cult. 



occidental is, L. 



Our garden Black-caps are seedlings of this, 

 the preceding frequently occur. 



Th. 



Common. 



Th. 



Hybrids between this and 

 Common. 



Th. 



Very common in C, covering thousands of acres of waste pine-land to the 

 exclusion of almost everything else. Rare in U. P. The fruit is agree- 

 able and much gathered. Occasionally a plant is found bearing large 

 berries of superior quality. This sp. is the original of the Law ton, 

 Wilson, Kittattiny, and other cultivated sorts. 



Blackberry. 318. villoSUS, Aiton. (*) 



Dewberry. 

 Low Black- 

 berry. 



Running 

 Swamp B. 



Prairie Rose. 

 Climbing Rose, 



Swamp R. 



Dwarf Wild 

 Rose. 



Early "Wild 

 Rose. 



Sweet Briar. 



Scarlet-fruit- 

 ed Thorn. 



319. Canadensis, L. (*) 



C. &S. 



Extensively trailing— 12 ft. or more— deep-rooted, hard to exterminate, 

 and troublesome in sandy fields. Fruit ripe about the middle of July, 

 sweeter than that of id. villosus. Frequent. 



320. hispidus, L. 



Very abundant through the C. in the pine country, frequently covering 

 the ground; also, S. and probably Th. 



ROSA 

 321. 



322. 

 323. 



setigera, Mx. 



C. &S. 



So. Haven— Bailey; Jackson Co.— Winchell; Flint— Dr. Clark; Macomb 

 Co.— Cooley; Grosse Isle— Miss Clark. Possibly indigenous, but very 

 rare or local. 



Cultivated. 



Th. 



Common. 

 C. & S. 



Carolina, L. 



Swamps. 



parviflora, Ehrh. 



Abundant and pretty. In the C. it is our common wild-rose. Dry soil. 

 A low form on hills about Ionia has narrow leaves, with peduncles 

 and ripe fruit glandular-bristly. 



bland a, Aiton. Th. 



Ionia (!",; Hubbardston (!); Flint; Ft. Gratiot— Winch. Cat., etc. Common 

 northward, but infrequent south of lat. 43°. 



c. &s. 



324. 



325. ruMginosa, L. 



Roadsides. 



CRATAEGUS 

 326. coccinea, L. 



Downy Thom. 327. subvillosa, Schrader. 



Frequent. 



Th. 



Common. 



0. &s. 



Black Thorn. 

 Pear T. 



Pear T. 



Frequent in C. ; our largest thorn, frequently 20-25 ft. and a foot in diam- 

 eter. 



328. tomentosa, L. C. & S. 



The form doubtfully referred to this species is a shrub with large, thick, 

 oval, sharply-serrate leaves, beneath prominently veined, and tapering 

 into a marginal petiole; corymbs very straggling and fruit quite small— 



X in- 

 Infrequent. 



Th. 



329. tomentosa, L., var. pyrifolia, Gr. 



Pear T. 



Cockspur 

 Thorn. 



American 

 Crab-apple; 



Choke-berry. 



Common. 



c. & s. 



330. tomentosa, L., var. punctata, Gr. 



A shrub or low tree. Very common in C. Other forms of Cralegus occur, 

 and the whole genus evidently needs revision. 



c. & s. 



331. Crus-galli, Linn. 



Usually a shrub. Used for hedges in the East. 



PIRUS 

 332. 



333. 



Common. 



c. &s. 



coronaria, L. 



Thickets and along streams; the fine rose-colored flowers delightfully 

 fragrant in May. The fruit green and bitter. Common. 



arbutifolia, L. Th. 



Hubbardston (!), etc. Rare in C. 



