Blake — New Asteraceae from Utah and Nevada. 175 



wide; involucre about 4-seriate, strongly graduated, 6 to 7 mm. high, the 

 phyllaries lanceolate, acuminate, shortly pilose-strigose, green-centered, 

 more or less purplish above and toward margin, with narrow whitish scari- 

 ous obscurely ciliate border; rays about 8 mm. long; achenes. 5-angled, 

 densely subsericeous-pubescent between the angles; pappus bristles white, 

 slender, stiff, 5 mm. long, a few shorter slender outer bristles sometimes 

 present. 



Type in the U. S. National Herbarium, no. 348129, collected in gravelly 

 soil, Palmetto Range, Nevada, altitude 1830-2135 meters, May-October, 

 1898, by C. A. Purpus (no. 5906). 



In Rydberg's key to Leucelene (Fl. Rocky Mts. 892) this species runs to 

 L. arenosa Heller and L. serotina Greene. It is distinct in the dense ciner- 

 eous strigosity of its leaves and stem. 



Erigeron caespitosus anactis Blake, subsp. nov. 



Rays wanting; involucre densely glandular-puberulous, sometimes also 

 sparsely hirsute toward base. 



Type in the U. S. National Herbarium, no. 348269, collected in rocky 

 places, Mt. Irish, Nevada, May-October, 1898, by C. A. Purpus (no. 6321). 



In its perennial caespitose habit, its densely spreading-hirsutulous stems 

 (about 15 cm. high) and triplinerved spatulate-obovate or spatulate- 

 oblanceolate obtuse or merely acute basal leaves, its solitary or paired 

 heads, and conspicuously graduated involucre, this hew subspecies agrees 

 with typical Erigeron caespitosus Nutt. It differs conspicuously, however, 

 in the lack of rays, and to a less degree in the paucity or entire absence of 

 long hairs on the involucre, being approached in this latter character by 

 some specimens of the typical form. 



Bahia ourolepis Blake, sp. nov. 



Few-stemmed erect perennial, 40 cm. high; stems whitish, appressed- 

 puberulous in lines, bearing a few sessile glands toward apex; lowest leaves 

 opposite, the others alternate, those above the lower third of stem greatly 

 reduced; petioles slender, 1 to 2.5 cm. long, sparsely puberulous with 

 appressed white hairs; blades elliptic or lance-ovate, 2.8 to 4.7 cm. long, 8 

 to 15 mm. wide, obtuse or acutish, acutely cuneate at base, entire, tliick, 

 impressed-punctate, puberulous with short appressed white hairs, glabres- 

 cent, 3-nerved; upper leaves much reduced, lanceolate or linear-subulate, 

 1 to 2 cm. long, 1 to 3 mm. wide; heads about 3, on pedicels 1 to 2.5 cm. 

 long; disk hemispheric, 9 to 10 mm. high, 15 mm. thick; involucre 2-seriate. 

 equal, 8 to 9 mm. high, the phyllaries lanceolate or linear-lanceolate, 1 to 

 1.5 mm. wide, narrowed into caudate-attenuate tips about 3 mm. long, 

 sparsely appressed-puberulous dorsally, triplinerved; rays oval, yellow, 

 tridenticulate, about 6 mm. long; disk corollas yellowish, stipitate-glandular 

 especially on the tube, 5 to 5.5 mm. long (tube 1.5 mm. long, throat funnel- 

 form, 2.5 mm. long, teeth ovate, erect, 1 mm. long); disk achenes narrowly 

 obpyramidal, 4-angled, 3.8 mm. long, hispidulous chiefly on the angles; 

 pappus 2 mm. long, of 12 linear-oblong obtuse or emarginate squamellae 

 with strong not excurrent midribs. 



