rr n < ^ 





i 



4 



PLANT^ WRIGHTrAN.E. 



TI. ^ 



E. soLiDAGiMFOLTUM, Gvay^ l. c. \ var. caulibus 1 - 2-pedalibus subsimplicibus 

 herbaceis e basi sufFrutescente pubescentibus ; foliis ovato-Ianceolatis parce serratis ' 



magis venosis pubcrulis ; panicula magis evoluta; capitulis 5 - 7-floris. — AYith the 

 forcgoing. (lliC.) — Thcse fine spccimens require that the character of the species 

 should be a little reformcd. 



E. AGERATiFOLiuM, DC^ var. ? iterbaceum; caulibus basi tantum suffrutescente ; ' 



foliis sa^pius pL m. cordatis. — Mountains, east of Santa Cruz, Sonora (a small- 

 leaved form); also atGuadalupe Pass, and at the copper mines, under trees(a large- 

 y^>fcW^'^leaved form), Oct (1147.) — Stems one to threefeet high; the foliage in the dried 



^ 



specimens somewhat aromatic. — The longer petioles, acute scales of the involucre, 

 and tlie pubesccnt achenia distinguish this from E. aromaticum. Although the 

 l stems are herbaccous ncarly or quite to the base, it certainly is not specifically dis- 



tinct from E, ageratifolium, var. Texense, which, like the present specimens, has from 

 12 to 22 flowers in the capitula. — The pappus in all my indigenous specimens 

 is nearly as long as the corolla; but in a plant raised in the Cambridge Botanic 

 Garden from Linclheimer's Texan seeds, tlie pappus is only half the length of the 



corolla; whcnce I suspect that E. Berlaridieri, DC. belongs to the same species. 



E. SoNOR.^ (sp. nov. Subimbricata) : caulibus herbaceis gracilibus assurgentibus 

 paniculato-ramosis pubescentibus ; foliis longe petiolatis oppositis membranaceis 

 deltoideis acuminatis grosse dentatis basi 3-5-nerviis puberulis; corymbis oligo- 

 •'•^ * cephalis ; involucro 24:-floro subbiseriali, squamis oblongis bi - trinerviis, exterio- 



^' Jj *fi» ribus acutiusculis pubescentibus, interioribus obtusis ; corollis carneis ; acheniis 



acute angulatis, angulis hirtellis. — Crevices of rocks, in a mountain ravine, near 

 Santa Cruz, Sonora; Sept. (1148.) — Stems 10 to 20 inches long, often decumbcnt, 

 striate. Leaves 12 to 18 lines long, on pctioles of 4 to 10 lines in length, thin, con- 

 spicuously acuminate, deeply dentate with 6 or 8 strong and spreading teeth, or the 

 upper with 3 or 4 on each side, truncate at the base, not cordate, the smaller raraeal 

 ones sometimes contracted at the base. Involucre two lines long. Pappus rather 

 shorter than the corolla. — 4^1iedto E. Schiedianum, DC; from which its smaller 

 heads, and smaller, more triangular, abruptly long-acuminate and incisely toothed 

 leaves distinguish it. From E. multinerve, BentL, which seems to be E. Schiedia- 

 num y. divcrsifolium, DC, it difFers in nearly the same particulars, but I fear not 

 sufhciently. 



CoNocLiNiuM DissECTUM, Grai/, Pl Wright p. 88, var. (= No. 259). Valleys, 

 between Eaglc Springs and the Rio Grande ; June. (1149.) 



Mach^ranthera tanacetifolia, Nees, Asf, p. 224 ; Grai/, P/. Wright p. 90. 

 Valley of the Pecos, in alluvial soil; June. Also near the San Pedro, Sonora, in 

 low, damp soil; Sept. (1150.) 



M. TANACETiFoLiA, var. humiHs (spithamaea) ; involucro subturbinato, appendici- 



/bus foliaceis squamarum brevibus minus patentibus. — Near Ojo de Gavilan, New 



Mexico ; Aug. (1151.) — Tlie green tips of the involucral scales are scarcely more 



prolonged than in some forms of M. canescens. 



^ ^ M. TANACETTFOLiA, var. pygmcca (3 - G-polIicaris) ; capitulis multo minoribus; 



involucro hemisphserico, squamis breviter appendiculatis. — Dry, stony hills, valley 



/ 



r 



