25 



ate apex, abruptly narrowed at the very base, marked in the 

 middle with a deep purple line, puberulent, especially on the 

 lower half. 



The type is no. 7756, collected April 24, 1905, on the lower 

 slopes of the mountain about three miles southwest of Mojave, 

 Kern county, in the Mojave desert. Miss Stokes has indicated 

 this same thing as a variety of E. angiilosuni in the herbarium 

 of the Academy, but to the writer it seems distinct, marked at 

 once by its different habit, namely, in being caulescent and in 

 the branches diverging and spreading, leaving an open space in 

 the middle. 



No. 7796, was collected April 29, at McKittrick, Kern 

 county, on the western side of the valley, 50 miles from Bakers- 

 field. It grew in sandy soil, is diffusely spreading with more 

 slender and longer branches, and is acaulescent or nearly so, the 

 upper leaves more petiolate than in the type. 



No. 7732, collected April 20, at Sunset, Kern county, ten 

 or 15 miles south of McKittrick, in the same range of oil pro- 

 ducing hills, grew on dry stony hills, and is still more unlike 

 the type in its greener appearance and more diffuse, slender 

 growth, but is evidently the same as 7796. 



Eriog'oiiuin viridescens 



Annual, 1-2 dm. high and as broad or broader, normally 

 caulescent, floccose-tomentose throughout except on the pedicels 

 and flowers: stems terete, rather thick for the size of the plant, 

 the main one 2-4 cm. long, 3 or 4 mm. in diameter, those above 

 gradually a little smaller, more or less dichotomous, leafy: leaves 

 oval, undulate, often somewhat oblique at base, the basal ones 

 as much as 7 cm. long, including the petiole, which is nearly as 

 long as the blade and dilated and clasping at base, the blade 

 2 cm. wide; leaves at the first node (which is normally trichoto- 

 mous) with shorter petioles but blade about as large as in the 

 basal ones; those above gradually becoming smaller, the upper- 

 most oblong, sessile: bracts at the nodes 3, oblong, acute, the 



