■ i 



* 



9G 



rLA^'T^ -WRIGHTIAN^. 



V. 



ncarly simple terminal corymb, solitary 



pairs on the more 



ed 



pedunclcs, four lines long. Scales of the involucre obscurely herbaceous near the 



tip 



Appcndages of the style short, triangular-lanceolate 



Achenia short 



Iky-villous. 



236. L. (C 



Toi 



Gray, Fl 2. p. 234. Base of 



the Guadalupe Mountains, New Mexico; Sept. — Here belongs No. 102 of Ge\ 



vv^hich in the pubUshed account is 



ly referred to L. viscidiflor 



The latter, abundantly gathered by Fremont, Geyer, and Burke, has the involucre 



scid only when y 



d not always then, whence NuttalPs later specific 



f pimila is preferable. Burke 



gathered L. albicaulis 



the Rocky 



Mountains, confirming the character of that species. 

 287. L. (Chrtsothamnus) pulchella (sp. nov.) : fruticosa, ramosissima, glabr 



ramis gracilib 



apice 



mbosis; fol 



subulatis 



cap 



ubfasciculatis o-flo 



guste linearibus uninerviis, ramealibus 



involucro 



subdimidio breviore, squamis pl 



b 



pentagono floribus 



oblongo-lanceolatis cuspidat 



albis dorso ad apicem viridibus arcte quinquefariam imb 



achei 



angulatis fere glab 



pappo copioso 



shrubby plant, apparently one or 



setis rigidulis omnibus requilong 



6- 



A 



feet high; the slender branchlets whitish. 

 Leaves coriaceous, 8 or 9 lines long. Involucre 4 lines long ; the chartaceous ap- 

 pressed scales imbricated in five vertical ranks, about six scales in each, the exterior 



.vely shorter, all very much carinate, herbaceous on the back next the apex. 



s acuminate-cuspidate. Corolla, style, &c., as in the other species of the sec- 



Chiysothamnus. Eeceptacle small, alveolate-toothed, as in the others. Ache- 



which 



fully two lines long, glabrous to the naked 



bescent under 



F 



but sparingly and minutely pu 



of the same length and strength 



Pappus half an inch long, of slender, but rather rigid 



This curious species is allied to Chrysothamnus 

 depressus, Nutt Pl Gamb., which is a smaller plant, with more slender and taper- 



mg mvolucral 



These 



mor 



less evidently quinquefi 



per Chrysothamni, but in none do they appear so strictly so as in these two spe 



of their greater number and of their strong 



289. L.^ coRONOPiroLiA (sp. nov.) : glabra, subg 



tescente 

 filiformibus 



plicibus; foliis pinnatip 

 pitulis ad apicem caulis 



lobis 



; caulibus e basi suff^ru 

 2-4 rhachique lineari 



lylindraceo-campanulato floribus subdimidio b 



gestis 9 - 11-flor 



involucro 



pressis ecarinatis obtusis. 

 inches high, leafy to the top 

 5 to 8 lines long, punctate. 

 terminal subglobose glomerule 



oblon 



ap- 

 -18 



Along the Rio Grande, Texas ; Sept.— Stems 12- 



. Leaves an inch or more in length ; the slender lobes 



Heads 4 lines long, sessile or nearly so, crowded in a 



greenish towards the tip 

 short, silky-canescent. 



Scales of the involucre thickish, nearly flat 



Appendages of the styl _ 



An undoubted congener of ^6.^283, 2847and 285rwhich 



Achenia 



I;- sc.d,flora well to allow Nuttairs genus Chrysothamnus to stand for the 



i 



flowered species, uotwithstand 



g the slender appendages of the style. On 



'/ 



