310 BOTANICAL INFORMATION. 



region, produce all deep yellow flowers. This plant has a 

 very pertinacious parasite, the Orobanche 369, growing co- 

 piously on its roots. It is further very abundant on the stony 

 valley of the Koos-Kooskee River, where I found it growing 

 with Eriogonum 396, the latter being thoroughly covered with 

 a silvery tomentum. I never met with it again afterwards. 

 There remains a cymous-paniculate species, like the rest, 

 covered with a woolly hair, but with a colour between white 

 and rose : it forms large groups in the sandy valleys, this is 

 Eriagonum 590. On stony exsiccated places I collected 

 Ambrosia 551, Cynoglossum} 260, Cantua 544, Rochelia 

 548, Delphinium 420, and Lythrum 591, growing with masses 

 of Hosackia Purshiana and Gratiola Missuriensis. The finest 

 plants in these plains grow in the gravelly sandy central 

 parts, and near rivulets. Among them is the delicate Gypso- 

 phila ? 535, Orthocarpus 465, with tricoloured bracts, tinged 

 with pink ; further, Orthocarpus 540, very rare, Pentstemon 

 464, Poterium 467, Anemone cylindracea, Hosackia 553, 

 Calycadenia 408, 409, Erigeron} 478, 571, Stenactis spe- 

 ciosa, Gallardia 35, Galium septentrionale, Dianthusl 466, 

 Helianthus 34, Hypericum, Lupinus 390, Sida 404, and Sida 

 410, with the different small involucrate Trifolium, grow 

 along the rivulets, with Ranunculus flammula, and Spiraea 

 Douglasii, Roses, etc. In the few pools grows the Clayto- 

 nia ? 531, and on the border besides masses of Gratiola, the 

 Alisma 439, Carex 190, 416, 417, 491, 492, 516, and 573, 

 the latter a rare species here ; also the Juncea 208, 498, 499, 

 500; further Aira 342, 555, and Agrostis 572, with Allium 

 584, Polemonium 530, and Aster puniceus 587 and 633, toge- 

 ther with many more ; but as we have had a view of it suffi- 

 cient to show its character, we will reserve part, and only 

 notice those with fixed localities at the end of the next sub- 

 division. 



(To be continued.) 



