242 MICHIGAN SURVEY, 1908. 



258. Parnassia palustris L. Northern Grass of Parnassus. Bog mar- 

 gin of Sumner Lake. Sparingly distributed. 



Grossulariaceae — Gooseberry Family. 



259. Riles setosum Lindl. Bristly Gooseberry. Shore of Siskowit 

 Lake. Rare. 



260. Rihes jM-ostratum L'Her. Fetid Currant. Eich, moist woods; 

 also one of rock islands at Bock Harbor. Fairly abundant. 



261. Riies rubrum L. Bed Currant. Growing wild in abundance in 

 vicinity of Siskowit Lake portage. V, 9. 



Rosaceae — Bose Family. 



262. Opulaster opulifolius (L) Kuntz. Ninebark. Occurs principally 

 along the shores, often as a crevice plant on the rock islands, as well 

 as on rocky shore of main land. I, 1; III, 1; V. 6. 



263. Rubus parviflorus Nutt. WTiite-flowering Baspberry. A very com- 

 mon and characteristic plant of clearings and burnings; ^Iso occurs in 

 thickets and open parts of woods. VIII, '04. 



264. Rubus arcticus L. Arctic- Raspberry, or Bramble. Sparingly 

 distributed in moist woods and filled bog areas. 



265. Rubus strigosu^ Michx. Wild Bed Baspberry. Found most 

 abundant in the burned areas at head of Siskowit Bay. . 



266. Rubus americanus (Pers.) Britton Dwarf Baspberry. Occa- 

 sional in woods; rather common in bog forests. 



267. Fragaria vesoa L. Sparingly distributed. I, 1. 



268. Pot&mtilla arguta Pursh. Tall Wliite Cinquefoil. Common 

 around light-house clearing at Bock Harbor as a ruderal. I. 



269. Potentilla monspeliensis L. Bough Cinquefoil. Exposed rocks 

 having scanty soil. 



270. Potentilla littoralis Bydberg. Coast Cinquefoil. Fairly common 

 as a rock crevice plant along main shore, and on small rock islands. I, 

 1. 



271. Potentilla tridentaia Soland. Three-toothed Cinquefoil. Very 

 common as a rock crevice plant along shores and on small rock islands. 

 I, 1;V, 2. 



272. Potentilla fruticosa L. Shrubby Cinquefoil. Bocks at Scovill 

 Point, IV, 1. Occasional shore crevice plant. ' I> 1. 



273. ' Comarum palustre L. Purple Marsh Cinquefoil. One of the 

 most common and most characteristic plants of all bog-lake margins, 

 and contributing an important part toward the vegetative bog carpet. 



274. Waldsteinia fragariodes (Michx.) Tratt. Barren or Dry Straw- 

 berry. Large patches on the side of the Greenstone range along McCargo 

 trail. II, 3. 



275. Rosa acicularis Lindl. Prickly Bose. Only species of rose found 

 on island. Fairly common around light-house clearing and in open 

 places. 



Oeran iaceae — Geranium Family. 



276. Geranium bieknellU Britton. Bicknell's Cranebill. Rock crevice 

 plant: also on rocks with thin soil covering. Few localities only. I, 

 1. 



