r- 



t 



VI. 



PLANT^ WRIGHTIAN.E. 



103 



be of specific importance. As in the Californian plant, the leaves are cithcr gha- 

 brous or pubescent ; and either entire, or with a few spreading teeth, or laciniate- 

 pinnatifid. In some of the exterior, chiefly sterile flowers, the awns of the pappus 

 are as long as the palea.* 



PiNAEOPArrus RosEus, Less., DC. Prodr. 7. p. 99. Stony hills of the San 

 Felipe, Western Texas. (1420.) 



Rafinesquia Neo-Mexicana (sp. nov.): humilis; foliis runcinato-piunatiiidis ; 

 involucri squamis propriis 7-8 lanceolatis uniseriatis ; acheniis breviuscule rostratis, 

 exterioribus cinereo-pubescentibus, intimis glabris ; pappo albo, setis rigidulis. 

 Stony hills along the Rio Grande near El Paso, abundant ; March, ApriL (1421.) 



Plant from 3 to 12 inches high, branching, from a slender monocarpic root 

 (wliich probably originated from the seed late in the autumn previous), rathcr 

 slender, entirely glabrous. Leaves slightly fleshy, one to two inches long ; the 

 radical obovate or oblong, barcly toothed; the cauline lanceolate or linear, auricu- 

 late-clasping at the base, and pinnatifid, with few or several oblong or linear spread- 

 ing or somewhat recurved lobes; the uppermost linear and entire, gradually re- 

 duccd to small bracts. Heads solitary, terminating the branches. Involucre an 

 iiich long, cylindraceous, tapering upwards, or elongated-conical, composed of about 

 10 short ovate-acuminate calyculate scales, and of 7 or 8 elongated lanceolatc mcm- 

 branaceous scales, tapering to a point, as long as the disk ; all somewhat united 

 and tliickened at the base. Receptacle flat, naked, areolate. Flowers from 15 to 

 18, all fertile and similar. Ligules rose-color, or nearly white above and purple 

 underneath. Achenia terete, obscurely 5-ribbed, tapering from the base (the large 

 areola of insertion basilar) upwards, and prolonged into a not very slender 

 beak, which is about half the length of the body of the achenium; the exterior 

 canescently pubescent; the innermost glabrous and smooth, or very nearly so. 

 Pappus bright white, composed of 10 or 12 rather rigid setse (like those of 

 Scorzonera), about the length of the achenium, and conspicuously and densely 

 plumose from the base to a little below the capillary apex. — This handsome 

 vernal plant appears to be a genuine congener of the Rafinesquia Californica 

 of Nuttall, notwithstanding the shorter and stouter beak to tlie fruit, and stronger, 



L 



more paleolate bristles of the pappus. 



Stepiianometiia minor, i\%«.; Grai/, Pl Wri^ht. j). 128. Alluvial soil on the 



Pecos; June. (1300.) 



S. RUNciNATA, iVwf?. ; Grai/, PL Fendl p. 112. Jamesia pauciflora, Nees ! in 

 Neuwied Trav. App. p. 16. Hills near El Paso; May. (1422.) — «Plowers 

 purple." 



S. RUNCiNATA, Nutt, var. caulibus elatioribus (1-2-pedaIibus); ramis panicu- 



latis ; foliis tenuioribus. — Pebbly bed of Howard's Creek, Western Texas ; May. 

 (1301.) 



Hook 



men, is not the Calais macrochjEta, Gray, Ph Fendl ; but a Scorzonella; perhaps the entirc-lcaved state 



of S. laciniata. 



m 



