223 
Potentilla gracilis Dougl.: Hook. Bot. Mag. t. 2984 (1830), 
Sandy soil, island in Clearwater River, near Upper Ferry, above Lewiston; 
May 10 (No, 153). Common in rocky soil on Hatwai Creek, Nez Perces County; 
May 27 (No, 257). Also valley of Lake Waha. 
Potentilla millegrana Engelm.; Lehm, Add. Ind. Sem. Hamb, 12 (1849); P. rivalis 
millegrana Wats. Proc, Amer, Acad.viti, 553 (1873). 
Potentilla palustris (L.) Scop. Fi. Carn. ed. 2, i, 359 (1772); Comarum palustre L. Sp. 
Pl. i, 502.(1753). 
Wet marshes, valley of Lake Tesemini, Kootenai County; July 21 (No. 688), 
Rich bottoms at Lewiston, Nez Perces County; May 13 (No. 158), Also on 
Clearwater River, near mouth of Big Potlatch, and at head of Little Potlateh 
River. 
Sibbaldia procumbens L. Sp. Pl. i, 284 (1753). 
On rocks, summit of Packsaddle Peak, Kootenai County; August 5 (No, 836), 
Sanguisorba annua nom. nov.; Poterium annuum Nutt.; Hook. Fl. Bor. Amer. i, 
198 (1834). 
Frequent on sandy soil, valley of Big Potlatch River, Nez Perces County ; 
June 4 (No. 309). 
Rosa blanda Ait. Hort. Kew. ii, 202 (1789). 
High ridges, valley of Little Potlatch River, Latah County; June 13 (No. 381). 
In canyons at Farmington Landing, Lake Cur d'Alene; July 7 (No. 581). Also 
at head of Little Potlatch River. 
Rosa californica Cham. & Schlecht. Linnea, ii, 35 (1827). 
Common in copses on Hatwai Creek, Nez Perces County; May 14 (No. 173). 
Shores of Lake Pend d’Oreille, east side, near Lake View; August 7 (No. 871). 
Rosa fendleri Crepin, Prim. Monogr. Ros. 452 (1874). 
Copses at Thompson Falls, Montana; August 27 (No. 973). Plains, Colgate, 
near Glendive, Dawson County, Montana; September 6 (No. 1009). 
Rosa gymnocarpa Nutt.; Torr. & Gr. FI. i, 461 (1840). 
Canyons, valley of Little Potlateh River, Latah County; June 13 (No. 385). 
Woods on Wiessner’s Peak, Kootenai County; July 11 (No. 619). Also head of 
Little Potlatch River, North Fork of Hangman’s Creek, Kootenai County, valley 
of Spokane River, Kootenai County, and south end of Lake Pend d’Oreille. 
Rosa pisocarpa Gray, Proc. Amer. Acad, viii, 382 (1872), 
Copses at Thompson Falls, Montana; August 27 (No. 974). 
Rosa sp. 
Distinguished at once from all other North American roses by the densely spiny 
fruits, and the stem with few epidermal spines, or frequently with none. Infra- 
stipular thorns none; flowers solitary at the ends of short, leafy branches. 
Leaves and size of flowers nearly as in I. lucida. 
Canyons near Farmington Landing, south end of Lake Cour @Alene; July 7 
(No. 572). 
Sorbus sambucifolia (Cham. & Schlecht.) Reem. Syn. Monogr. iii, 39 (1847); Pyrus 
(Sorbus) sambucifolia Cham, & Schlecht. Linnea, li, 86 (1827). 
Frequent in woods at 1,000 meters altitude, Cedar Mountain, Latah County ; 
June 17 (No. 421). 
Crateegus rivularis Nutt.; Torr. & Gr. Fl. i, 464 (1840), 
Common along streams, valley of Hatwai Creek, Nez Perces County; April 25 
(No. 43). Copses, searce, on Little Potlatch River, Latah County; June 13 
(No. 377). 
Cratzgus tomentosa L, Sp. PI. i, 476 (1753), 
Copses, frequent, Craig Monntains at 900 meters altitude, Nez Perces County; 
May 25 (No. 249). Hope, Kootenai County; August 26 (No, 10382). 
