98 CATALOG OF PLANTS. 



471. Potentilla argentea L. Silvery cinquefoil.— Frequent on dry 



and sandy ground. 



472. Potentilla palustris (L.) Scop. Marsh five-finger.— Frequent in 



wet marshy open places. 



473. Potentilla fruticosa L. Shrubby cinquefoil. — Occasional on wet 



or dry open ground. 



474. Potentilla anserina L. Silver weed.— Common in many places 



and often abundant not far from the lake shore. Usually 

 not extending far inland. 



475. Potentilla canadensis L. Five-finger. — Frequent throughout the 



sand region. 



476. Geiim canadense Jacq. White avens. — Frequent in damp open 



woods and thickets. 



477. Geum virginianum L. Rough avens. — Occasional on low ground 



and on borders of woods at Bayport, Sel)ewaing and near 

 Rush Lake. 



478. Geum strictum Ait. Yellow avens. — Frequent in moist meadow- 



like i)laces at Sebewaing, Bayport and Port Austin. 



479. Geum rivale L. Water avens. — Occasional in wet boggy places 



at Sebewaing and near Rush Lake. 



480. Rubus idaeus aculeatissimus (C. A. Mey). Regel and Tiling. 



Wild red rasp])erry. — Common on dry and sandy ground 

 throughout the sand region. 



481. Rubus occidentalis L. Black caps. Black raspberry. — Frequent 



in damp open woods and thickets. 



482. Rubus triflorus Richards. Dwarf raspberry. — Common in damp 



woods and thickets. 



483. Rubus allegheniensis Porter. High ])ush blackl)erry. — Common 



on flat sandy ground and on fixed sand dunes. 



484. Rubus hispidus L. Hispid blackberry. — Common on low dry 



ground and between sand dunes. 



485. Rubus villosus Ait. Dewberry. — Common on flat or rolling 



ground and on shaded sides of fixed sand dunes. 



486. Agrimonia gryposepala Wallr. Tall hairy agrimony. — Frequent 



on dry ground in open woods. 



487. Rosa blanda Ait. Meadow rose. — Frequent on borders of 



marshes and on sandy ground not far from the lake shore, 

 where it often acts as a sand binder. "Growing in sand 

 and nearly buried by it at Hat Point." Davis. 



488. Rosa rubiginosa L. Sweet brier. — Frequent on sandy ground 



throughout the sand district. 



489. Rosa Carolina L. Swamp rose. — Common on borders of swamps 



in marshes and along streams. 



