MICHIGAN FLORA. 



29 



Wild Red R. 



Black R. 

 Thimbleberry 



Blackberry. 



Dewberry. 

 Low Black- 

 berry. 



Running 

 Swamp B. 



Prairie Rose. 

 Climbing Rose. 



Swamp R. 



Dwarf Wild 

 Rose. 



Early Wild 

 Rose. 



Sweet Briar. 



316. strigosus, Mx. 



Variable. Many seedlings in cult. 



317. occidentalis, L. 



Th. 



Common. 



Th. 



Hybrids between this and 

 Common. 



Th. 



Our garden Black-caps are seedlings of this 

 the preceding frequently occur. 



318. villosus, Aiton. (*) 



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. 



319. Canadensis, L. (*) 0. & 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 R. 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. setigera, Mx. 0. & S. 



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



Co.— Cooley 

 rare or local 



Grosse Isle— Miss Clark. 



322. Carolina, L. 



Swamps. 



323. parviflora, Ehrh. 



Possibly indigenous, but very 

 Cultivated. 



Th. 



Common. 



c. & s. 



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. 



324. blanda, Aiton. Th. 



Ionia (l); Hubbardston (!); Flint; Vt. Gratiot— Winch. Cat., etc. Common 

 northward, but infrequent south of lat. 43°. 



C. & S. 



Frequent. 



325. rubiginosa, L. 



Roadsides. 



Scarlet-fruit- 

 ed Thorn. 



Downy Thorn. 



Black Thorn. 

 Pear T. 



CRATAEGUS 



coccinea 



326. 

 327. 



328. 



Th. 



Common. 



subvillosa, Schrader. 0* & S. 



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



C. &S. 



eter. 



tomentosa, L. 



X m- 



The form doubtfully referred to this species is a shrub with la rge . tl"ck. 

 oval, sharply-serrate leaves, beneath prominently veined .and taper tag 

 into a marginal petiole; corymbs very straggling and fruit quit* *mau- 



Infroquent. 



Th. 



Common. 



0. & s. 



Other forms of Cralegus occur, 



tomentosa, L., var. pyrifolia, Gr. 

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



A shrub or low tree. Very common in C. 



and the whole genus evidently needs revision. 



>us-galli, Linn. 



Usually a shrub. Used for hedges in the East. 



C. & S. 



Common. 



coronaria, L. 



Thickets and alon 

 fragrant in May. 



arbutifolia, L. 



Hubbardston (!), etc 



streams; the line 

 The fruit green and bitter. 



Hare in C. 



0. & s. 



osc colored flowers delightfully 



Common. 



Th. 



