OF ARTS AND SCIENCES. 



41S 



Helianthus Cusickii. H. Nuttallii et H.gracilenti parum affinis, 

 multicaulis e caudice crasso perpendiculari resinifero, strigulosus, sa^pe 

 hispidulus; caulibus ultrapedalibus ramisve monocephalis demum 

 reclinatis ; foliis plerisque alteruis lineari- seu aiigusto-lauceolatis in- 

 tegerrimis obtusiuscwlis basi attenuata sessilibus leviter trinervatis fere 

 ev^eniis ; involucri (vix ultra-semipollicaris) bracteis angusto-lanceolatis 

 sensim acuminatis hirto-ciliatis demum laxis ; ligulis (1-ll-pollicaribus) 

 elongatis; acheniis glaberrimis ; pappi paleis oblongo-lauceolatis 

 majusculis, squamellis nullis. — A very marked species, of tbe Desert 

 region, first received from Mr. Cusick, then from Mr. Brandegee. On 

 dry hills near the Malheur River, S. E. Oregon, coll. in early summer 

 of 1885, in flower, Cusick. " Has thick and succulent roots, an inch 

 or two in diameter, of a sweetish taste." Among sage-brush, in the 

 northern Yakima region, Washington Terr., Oct., 1885, Brandegee, with 

 flower and fruit, " forming clumps, the many stems at length resting on 

 the ground in an entangled mass." 



Artemisia pygm^a. Seriphidium, fruticulosa, spithama^a e cau- 

 dice crasso lignoso, multicaulis, tenuiter canescens, demum glabrata ; 

 foliis (lin. 2-5 longis) rigidulis pinnati-3-7-partitis, segmentis subu- 

 lato-linearibus obtusiusculis ; capitulis spicatis folio fulcrante longi- 

 oribus; involucro cylindraceo (lin. 2-3 longo), bracteis pluriseriatis 

 lineari-oblongis glabellis chartaceis margine scariosis, iuferionbus 

 dorso crassiore viridulo ; floribus 3-4 et achenio (immaturo) glabris. 

 _ Desert region of Nevada, at Fisk Creek near Eureka, Brandegee, 



August, 1885. T T?i 



EcniNOSPERMUM BRACHYCENTRUM, Ledeb. Fl. Alt, & Ic. tl. 

 Ross. iv. t. 302.— Var. brachystylum. — Spence's Bridge, Thompson 

 Eiver, Brit. Columbia, /. Fletcher, fide 3Iaconn. — Alovf and villous- 

 hirsute leafy-bracteate species, but the bracts short ; the nutlets convex 

 on the back within the low callous margin, which bears scattered lightly 

 glochidiate papillae or extremely short setaj (or even these sometimes 

 obsolete), and is not at all carinate. Our plant accords well with 

 Ledebour's figure, except that the style is not exserted beyond the 



apex of the nutlets. 



MiRABiLis BiGELOVii. Viscosissimum, viUosum, caulibus foliisque 

 rotundatis flaccidis ; perianthio pallido involucrum parum superante ; 

 CKt. fere M. Californicce. — Oxyhaphus glabrifolius, Torr. Pacif. R. R. 

 Exp. iv. 131, quoad pi. Colorad. valde pubescens. — Arizona, and per- 

 haps in California on the Colorado. Common in the Grand Canon of 

 the Colorado, below Peach Spring, collected May 5, 1885, A. G. 



