90 UNITED STATES AND MEXICAN BOUNDAKY. 



AcTiNOMERis WRianTii, Gray^ PI, Fendl. p. 85, ct- Fl. Wright. I. c. Between Cobre and 

 Conde's Camp, New Mexico, etc. ; Wright, Thurher. 



AcTiNOMERis loxGiFOLiA, Gray, PI. Wright, '2, p. 89. Mountains east of Santa Cruz, Sonera ; 

 Wright. 



TiTiioNiA TUBiEFORMis, Cass. Magdalena, Sonora ; Thurher. " Flowers orange-yellow.'* 



Heltantiiis ciliaris, DC. Prodr. 5, p. 587. From the lower Rio Grande to the Gobre, etc. ; 

 New Mexico ; also in Sonora, where Mr. Thurber gathered a form with remarkably broad leaves. 



Helianthus grosse-serratus, 3Iartens; var., Gray, PI. Wright. 2, j9. 89. Valley of the Mim- 

 bres, New Mexico ; Wright. Between the Eio Salado and Victoria, Texas ; Schott. 



Helianthus Maximiliani, Schrad.; DG. I. c. Leon Springs, and on the Limpia; Bigeloio. 

 Eio Seco, Texas ; Schott. 



HeliajSTThus angustipolius, Linn. Between Indianola and Victoria, Texas ; Schott. 



Helianthus lesticularis, Bough in Bat. Reg. t. 1265. Valley of the Gila; Schott. Common 

 in Texas and New Mexico. 



Helianthus petiolaris, var. canescexs, Gray, PI. Wright. 1, ». 108, (fc 2, ». 89. The remark- 



.bly 



Grande, below El Paso ; Wright 



Helianthus^ in PI. Wright. I. c, referred to H. petiolaris. Cobre, Wright, (1231,) Escondido 

 creek ; Bigelow. A singular and still doubtful plant. 



Helianthus cucumerifolius, Torr. & Gray, Fl. 2, p. 319. On the lower Eio Grande ; Schott. 

 Helianthts cucumerifolius, var. PRiEcox. H. praecox, Enghn. d Gray, PI. Lindh. H. debilis, 

 var. Torr. d Gray, Fl. I. c. Cleto creek, Texas; Schott. 



Helianthus argopiiyllus, Torr. & Gray, I, c. Cleto creek, between Victoria and San Antonio, 

 Texas ; Schott. A striking species, recently introduced into the gardens. 



Helianthus (Harpalium) tephrodes, (sp. nov.): humilis, pube appressissima canescens; 



foliis plerumc^ne alternis ovatis petiolatis «u"bserratis l)asi trinerviiSj junioribus cano-argenteis ; 

 pediinculo gracili monocephalo ; involucri squamis ovato-lanceolatis mucronato-acutatis ; pappo 

 e sq[uamelli8 paleisve plurimis^ majoribus 1 — 2 sseplus aristiformibus deciduis. — Mirasol del 

 MontCj in tbe Californian desert of the Colorado; in sandy places by the road-side, October, 1855; 

 Sclioit. The specimen is incomplete; and hardly suflScient for proper determination ; the base 

 of the stem and the root unknown. The stems or branches collected are scarcely a foot long, 

 and slender. Leaves about an inch long. Scales of the involucre merely biserial. Rays about 

 12; yellow; disk-corollas tipped with purple. The chaffy awns of the pappus are sometimes 

 elongated; but often one or both of them reduced to strong S(iuamell^; like the rest. 



(A 



Monterey and Santa Barbara, Califo 

 ^ith Coreopsis, of which it can form 



DG. Prodr. 5, p. 569, Moist 

 nia. An unnubliahed Peruvian 



CoKEOPSis CARDAMINEFOLIA; Torr. & Gvay^ FL 2; p. 346, Low places on the Limpia; Rio 



Grande 



'V 



Coreopsis Drummokdii, Torr. & Gray, var. Western Texas ; Wright. 



Thelesperma filifolium, Gray, in Kew Jour. Bot. 1, p. 252, <&, PI. Wright. I. c. Com- 

 mon in Southern and Western Texas, 



Thelesperma gracile. Gray, I. c. From the Limpia to Cobre, New Mexico, and Santa 

 CruZj Sonora, {Schott.) 



Thelesperma subsimplicifolium, Gray in Hook. Keio Jour. Bot. 1, p. 252 (nom. paullo 

 mutatum) : foliis rigidis anguste lineari-filiformibus, caulinis simplicibus trisectisve, inferiori- 



.ii-->nr Lij.i^ -..MaL-a.ll 



