19"] NELSON— IDAHO PLANTS 149 



In spite of the large number of species of Castillcja of somewhat similar 

 aspects and with dissected leaves, I do not seem to be able to refer this to any 

 near ally. The type number is Nelson and Macbride's 1261, secured on 

 disintegrated granite slopes at Ketchum, Blaine County, Idaho, July 21, 191 1. 



MISCELLANEOUS SPECIES 



Eriogonum loganum, n. sp. — Perennial with woody branched 

 caudex, the current year's stems short, simple, leafy, densely 

 white-lanate as are also the leaves, peduncles, and involucres, 

 assurgent, 1 dm. or less long and terminating in a stout ascending 

 scapelike peduncle 12-25 cm. high: leaves oblanceolate, mostly 

 narrowly so, obtuse or subacute, very white and densely appressed 

 lanate, 2-3 cm. long, on pedicels of about the same length: invo- 

 lucres tubular-campanulate, thin and scarious between the 5 or 

 6 nerves, 4-5 mm. long, many-flowered: perianth glabrous, pale 

 (greenish- white), directly articulated to the capitate apex of the 

 slightly exserted pedicels; perianth segments thin but with a stout 

 rounded midrib raised on the inside, the outer and inner similar, 

 oblong, obtuse, about 2 mm. long: achene glabrous, 3 mm. long, 

 the ovoid- triangular body not longer than the tapering beak. 



This description has been drawn from specimens supplied by Charles 

 Piper Smith, of Logan, Utah, under no. 1704. It occurs on the dry bench 

 lands or terraces near the college, and is in blossom late in June, with ripe 

 achenes in July. These specimens have been referred to E. ockrocephalum 

 Wats., but that species seems quite distinct from this. 



Lesquerella Lunellii lutea, n. var. — Much like the species, 

 seemingly blossoming even the first year from seed, hence some 

 specimens appear as annuals, some as biennials, and still others as 

 perennials, with slender woody taproot: leaves narrowly oblanceo- 

 late: flowers yellow, a little larger than in the species. 



This variety is probably only an ecological variation. Dr. Lunell has 

 now secured the species itself from several localities in Benson County, and 

 these sustain the characters as originally given, including the purple blade of 



petals 



Mc 



pnmari 



one expects them to be in this genus. It would no doubt have been more in 

 harmony with our conception of the genus had the form with yellow petals been 

 discovered and named first, the purple one becoming the variety. 



