90 PLANTS ■VVRIGHTIAN^. VI, 



C. Drummondii, Torr. 8f Gray, I. c. var. Gray, PI. Wright p. 109. — Prairies of 

 the Leona and Nueces, Texas; May. (1237.) — On rocky hills of the San Pedro, 

 Western Texas, were gathered a few specimens, apparently of this species, with 

 large and remarkably thickened achenia. 



Cosmos bipinnatus, var. parviflorus. C. parviflorus, H. B. K. ; DC. Proilr. 5. 

 p. 606. Margin of streams, from Barbocomori towards Santa Cruz, Sonora ; Sept. : 

 and on mountains near the copper mines, New Mexico; Oct. (1238.) — This 

 is the same as Fendler's No. 447, 448 ; but with still smaller ligules (only 3 or 4 

 lines long, pale rose-color). The scales of the outer involucre are lanceolate, but 

 not narrower than in depauperate specimens of the cultivated C. bipinnatus ; they 

 are as long as the inner involucre. Although the exterior achenia are short-beaked, 

 the inner are long-beaked ; the beaks scabrous. The awns of the pappus are 2, 3, 

 or occasionally 4. 



Thelesperma gracilis. Gray in Keiv Jour. Bot. 1. p. 252, 4* PI. Wright, p. 109. 

 Hills of the Limpio ; June : near Frontera ; May : and at the copper mines, New 

 Mexico; Aug. (1239.) 



T. FiLiFOLiA, Gray, 1. c. Coreopsis filifolia, Hook. Bot Mag. t 3505. Eocky hills 

 of the San Pedro, and of the San Felipe, Western Texas ; May. (1230 bis.) 



T. (Abuceros) longipes, Gray, PI. Wright j)- 109. Stony hills of the San Pe- 

 dro and Pecos, Western Texas ; May. (1231 bis.) 



BiDENs FOENicuLiFOLiA, DC. Prodr. 5. p. 603 1 var. acheniis minoribus (2j lin. 

 longis) scabro-hirsutulis. — Valleys of Sonora, between the San Pedro and Sonoita, 

 along streams ; Sept. (1232 bis.) Also gathered by Dr. Gregg, at San Antonio 

 de las Alanzanes. — The achenia are linear-oblong, tetragonal, but much obcom- 

 pressed, and shorter than those of B. fceniculifolia, as characterized by De Candolle ; 

 the heads probably smaller. Perhaps it is an undescribed species. 



B. heterophylla, Ort. ? DC. Prodr. 5. p. 597 % var. caule ranioso ; segmentis 

 foliorum (superiorum) fere integerrimis. — Bed of small streams, in mountain val- 

 leys, between the San Pedro and Santa Cruz, Sonora; Sept. (1233 bis.) — lam 

 not able to consult Ortega's figure. Our specimens consist of the upper part of 

 branched stems, apparently of a rather tall herb, in flower. The lower cauline 

 leaves present are pinnately 5 - 7-parted, the upper mostly 3-parted, only a few of 

 the uppermost entire : the segments linear, or very narrowly linear-lanceolate, one or 

 two lines wide, the lateral ones 1-2 inches, the terminal 2-3^ inches, in length, 

 sparingly denticulate-serrate, or nearly entire. Ligules oblong, 6 or 8 lines in 

 length, yellow. 



B. BiPiNXATA, i/«?i. Valley of Coppermine Creek, New Mexico. (1234 bis.) — 

 Depauperate forms. 



B. HETEROSPERMA (sp. uov.) : aunua, undique glabra ; caule ramosissimo ramisque 

 gracilibus ; foliis 1 - 2-ternatipartitis, segmentis anguste linearibus integerrimis 

 nunc 2 - 3-fidis ; capitulis paniculatis sparsis breviuscule pedunculatis parvis dis- 

 coideis ; acheniis anguste linearibus tetragonis glabris, extimis brevioribus erostratis 

 aristis 2 brevissimis caducis superatis, interioribus elongatis 2 - 3-aristatis. — Eaised 

 from seeds gathered by Mr. Wright near the copper mines. New Mexico. (There 



