34 
SPIKJEA, L. 
' 269. S, salicifolia, L. Common Meadow-sweet. Spiraea. Wiliow- 
leaved Spiraea. Queen-of- the -Meadow. C 
Damp prairies; common. June 25th — August. 
270. So tomentosa, L. Hardhack. Steeple-bush 
Damp prairies ; infrequent. July. 
Colehour, Ind., and southward. 
The flowers are occasionally white. 
FHYSOCARPUS, Maxim. 
271. P. opulifolius, Maxim. Nine-Bark. 
Spirrna opulifolia , L. 
Banks of streams and swamps; frequent. June — July. 
Desplaines River. Stony Island. Hog Island. Riverdale. Calumet 
Region. Pine Station, Ind. Graceland, Babcock . 
RUBTTS, Tourn. 
272. R. triflOFUS, Rich. Dwarf Raspberry. 
Dry woods and sandy knolls; infrequent. June. 
Evanston. Calumet Region. Grand Crossing. Miller’s and Pine 
Station, Ind. 
The number of sepals and petals varies. A form with six sepals and 
petals is very often found. 
273. R. strigOSUS, Michx. Wild Red Raspberry. 
Dry open woods and shrubby fields; infrequent, especially north-: 
ward. June — July. 
A most acceptable fruit. 
- r 274. R. oecidentalis, L. Black Cap. Black Raspberry. Thimbleberry. 
Fence rows, fields and open woods; frequent. June — July 10th, 
sometimes as late as September. 
275. R. villosus, Ait. Common or High Blackberry. 
$ Open woods, copses and fence-rows; frequent. May — July. 
276. R. villosus, Ait., var. frondoSUS, Torr. 
With the type, and in fields where the timber has been recently 
removed; not common. (B. P.) 
277. R. villosus, Ait., var. humifusus, T. & G. ^ 0 ^ 
Copses and borders of woods; infrequent or rare. 
Hyde Park and southward. (B. P.) 
278. R. canadensis, L. Low Blackberry. Dewberry. 
Edges of woods, fields and copses; frequent. June — July. 
Frequently follows the removal of timber. 
