94 



PLANT^ TV'KIGHTIAN.E. 



YI. 



lcngth of their slender pctiolcs ; those of the branches similar, but smaller. There 

 arc oftcn a fcu' glands on the facc of the leaf, as Avell as at the obscure repand' 

 crenaturcs. Pedunclcs, heads, &c. as dcscribed by De Candolle ; except that the 

 involucre is not quite an inch long, and its scales are scarcely if at all apiculate or 

 mucronate. Achenia pubescent. — This is more closely allicd to P. ruderale (which 

 oftcn has pcllucid glands on the leaves) than to P. ellipticum. 



P. Greggii, Gray^Tl. JVri(jlit. p. 120. On the Sonoita near Deserted Rancho, 

 Sonora ; Sept. Mountain-sidcs near Lake Santa Maria, Chihuahua ; April. (1247.) 



P. scoPAiiiuM, Grai/, PL Wright. p. 119. Rocky hills, near El Paso; May. 



Painted Cavcs on the San Pedro ; July. (1409.) 



Gaillardia ruLCHELLA, Foug. Prairies from the Mimbres to the copper mines, 

 New Mexico ; July. (1248.) 



G. riNNATiFiDA, Torr. Stony hills of tKe Pecos ; also from El Paso to Dona 

 Ana, and at the copper mines, New Mexico; Aug. (1249.) 



PALAroxiA HooKERiANA, Torr. 4* Gray. Sandy banks of the Rio Grande above 



Frontcra, and bclow San Elizario ; July. (1250.) — A smaller form, but with 

 ample rays. 



P. CALLosA, Torr. 8r Grai/, FL 2. p. 369. Valley of the Pecos; July. (1410.) 



Florestina TRirTERis, DC, var. Grai/, PL Wright. p. 121. Valley of the 

 Pccos; June. (1251.) — llowers flcsh-color or ahnost white. The pale^e of the 

 paj)pus are all very obtuse. 



Ch.t.nactis stevioides, Ilook. §• Arn. ; Torr. in Stansbury, Rep. p. 390. Hills 

 near Camp Fillmore, on the Rio Grande, New Mexico ; ApriL (1411.) — The 

 marginal corollas have a somewhat ampliate limb. 



Hymenopappus luteus, NuiL ; Gray, PL FendL p. 97. Stony liills at the cop- 

 per mines; Aug. (1252.) — The specimens resemble those of Fendler. The 

 scalcs of the involucre are sometifties tinged with purple at the tips ; but the co- 

 roUa is truly yellow, with the pappus (a line and a half in length) fully as long as 

 its tube. 



H. FLAVEscENs, Grai/, PL FendL p. 97, Sf PL Wriffht p. 121: — the form with 

 bipinnately-parted leaves, the lobes narrowly linear. — Valley of the Pecos, on 

 stony hills ; June. (1253.) The flowers are palc yellow. 



H. FLAVESCENs, vaf. cano-tomentosus ; foliis 2 - 3-pinnatipartitis, lobis angusto- 

 linearibus confertis ; floribus vero flavis. — Sand-hills near Frontera, New Mexico ; 

 April, May. (1412.) — The heads are as bright yellow as in H. luteus; but they 

 arc smaller, and corymbose, the paleoe of the pappus shorter and more obovate, 

 and the stems leafy. 



H. FLAVESCENS, var. X foliis radicalibus et caulinis inferioribus oblanceolatis in- 

 tegerrimis nunc pinnatifidis, lobis majusculis; pappo minore. — Mountain ravine 

 near the Mimbres ; Oct. — The root is biennial. 



ScHKUURiA IIoPKiPvKiA ! capituHs 3 - 4.floris, flore uni.co sa^pius focmineo, ligula 

 brcvissima impcrfecta; achcniis obpyramidatis angulis longe villosissimis ; pappi 

 paleis 8 conformibus ovatis extus hirtcUis nervo valido excurrente brcvitcr aristatis 

 corollam ada^quantibus. — Hopkirkia anthemoidca, DC. Prodr. 5. p. 6G0. — Eaised 



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