CATALOGUE. I3I 



naked ; florets densely woolly, the 1-4 outer ones pistillate and fertile, having 

 short truncate obscurely 2-3-toothed corollas, branches of the style exserted, 

 smooth ; achenia oblong-obovate ; inner florets 4-8, perfect but sterile, corollas 

 inflated-funnel-form, 5-toothed, styles undivided, expanded and radiately 

 penicillate at the summit. — Plant 4-18' high, very bitter to the. taste. North 

 sources of the Platte, (Nuttall;) Laramie plains, in alkali-flats, (D. C. E.) 

 Abundant in the valleys of Nevada, and also collected on the islands of Great 

 Salt Lake; June. There is no good reason why this should not be an 

 Artemisia, of the section Dracunculus ; the style of the sterile florets is pre- 

 cisely that of A. borealis, caudata, etc., and the other characters are not dis- 

 cordant with the genus. Plate XIX. Fig. 15. A branchlet ; natural size. 

 Fig. 16. A leaf ; enlarged two diameters. Fig. 17. An involucral scale; 

 enlarged four diameters. Fig. 18. An outer pistillate fertile floret. Fig. 19. 

 An inner perfect but sterile floret; each enlarged eight diameters. Fig. 20. 

 A stamen. Fig. 21. The style of a perfect floret; each enlarged twelve 

 diameters. (633.) 



Artemisia deacunculoides, Pursh. Saskatchewan to California, and 

 Texas ; eastward to Illinois. Common throughout Nevada, mostly in the 

 valleys and lower canons, and collected at the City of Rocks in Southeastern 

 Idaho ; August-October. (634.) 



Aetemi^ia eilifolia, Torr. Stems 1-3° high, with slender virgate 

 panicled branches ; leaves 1-2' long, whitish-tomentose, becoming smooth, 

 filiform with revolute edges, the lower ones mostly 3-parted; heads in dense 

 leafy panicles, very small, tomentose, 3-5-flowered ; two florets pistillate and 

 fertile, with short truncate corollas, the rest perfect but sterile, the corollas 

 funnel-form, 5-toothed ; styles as in A. spinescens, etc. — Colorado and the 

 plains of the Upper Platte, extending to New Mexico and Arizona. Green 

 River, Utah, (Gunnison.) 



Aetemisia teidentata, Nutt. Shrubby, 1-6° high, much-branched, 

 branches spreading ; leaves crowded, cuneate-oblong, 6-12" long, usually 

 3-toothed at the apex, the teeth short and obtuse ; those of the dense com- 

 pound leafy panicles linear and entire ; all finely tomentose-canescent like the 

 branchlets ; heads obovoid, 5-6-flowered ; outer involucral scales tomentose, 

 very short ; inner ones longer, scarious ; florets all perfect and fertile ; co- 

 rollas funnel-form, 5-toothed, the proper tube very short ; styles 2-cleft, the 

 branches widened slightly upward, truncate and somewhat penicillate. — A 



