﻿Greene: New Compositae from New Mexico 123 



At an altitude of 7000 feet on the White Mountains, August 1 5 

 (no. 491). Not intimately allied to any other species ; the glabrous 

 glaucescent herbage somewhat like that of 5. microdontns, but in- 

 florescence and large heads of the group to which .S". Bigelovh and 

 its allies belong. 



Tetradymia filifolia. 



Compact low shrub, with short very leafy branches, but no 

 fascicled foliage: leaves all filiform, U' to l%* long, ascend- 



ing or suberect, permanently tomentose, as are all the leafy 

 branchlets : heads few, terminating all the branchlets, 4-flowered ; 

 involucre short, of two oblong-linear and two oblong-ovate bracts, 

 all obtuse and with arachnoid-ciliate margins : achenes glabrous ; 

 pappus long, of rather copious bristles, all abruptly dilated and 

 serrulate at tip. [Plate 334.] 



On 



Mountain Range, at 5000 



feet, July 21 (no. 183). Very distinct species, quite isolated from 

 the rest of the genus geographically. 



^Carduus perennans. 



Rather slender, 3 high, from apparently deep-seated perennial 

 roots, the herbage arachnoid-woolly when young, the maturer 

 foliage glabrate above, white-wooly beneath : stem and few flower- 

 ing branches leafv, even up to the few and scarcely pedunculate 

 heads : lowest leaves lanceolate, subentire and spinose-ciliate the 

 others with shallow lobes: heads 1*4' high, ovate, the coriaceous 

 and not strongly imbricated bracts arachnoid-wooly a ong the mar- 

 gin only, showing a narrow glutinous spot, and tipped with a stout 

 somewhat spreading spine ; flowers red or purplish : W"*™*" 

 attenuate-subulate : some of the outer pappus bnstk not at all 

 plumose, and onlv sparingly barbell ulate. 



White Mountains, at 7000 feet, Aug. 12 (no. 326) and Organ 



July 7. One of the very 



A 



In aspect more like C. Anzonuus than 



any other. 



^PTILORIA XeO-MeXICANA. 



Tufted and much branched perennial, the J^J^StaSTS 



i° to 2" high, clothed with a few hnear and „ . -a -sul u at , 



tir, .eaves and leafy br. ,. the whole , ant g££«£ . 



