76 



UNITED STATES AND MEXICAN BOUNDAEY. 



EuPATOEilTM ScniEDEANUM, ScJirGcl. ; DC, Prodr. 6, ^.159. (E. multinerve, Benth. E. 

 Schicdeanoides, Schultz, Bip.:) var. grosse-dentatum. E, Sonorae, Gray, PI. Wright, 2, p. '74-. 

 Mountain ravine near Santa Cruz^ Sonora ; Wright. Lower Eio Grande^ Texas^ near Einggold's 

 Barracks^ etc.; ScJiott. The latter is a more diffuse and loosely flowered form, approaching E. 

 paniculatumj ScJirad,^ in the inflorescence^ but not in the leaves. The form with dense corymbs 

 which comes from southern Mexico^ Costa Kica^ etc., Dr, Schultz has ascertained to^be Lessing's 

 E. pycnocephalum^ a name not very appropriate for our forms nor for the specimens of Berlandier. 

 The plant of the Eio Grande is said by Mr. Schott to exhale a moschate odor. 



EuPATOniUM Berlandieri, DG. Prodr. 5, p. 167. E. ageratifolium ^? Mexicanum, DC. 



* 



^. c. p. 173. E. ageratifolium, var. Texense and var. herbaceum, Gray Fl. Lindh. & PL 

 Wright. Various forms from southern Texas to the mountains near Santa Cruz^ Sonora^ (the 

 nearly herbaceous state.) In Berlandier's reliquice distributed by me, this occurs under the 

 numbers 762 and 2182, (between Victoria and Tula,) and 756, 2176, (between Tula and 

 Tampico ;) also from San Carlos, Tamaulipas, 3164. These all belong to one species, and the 

 difference in the length of the pappus remarked by De Candolle is inconstant. The name of E. 

 Berlandieri had best be retained for the species, at least until it is identified with the Cuban 



species. -■ ■ 



EuPATOEiUM WniGnTir, Gray^, PL Wright^ 2,^. 87. New Mexico ; TVright. 



Etjpatorium solidaginifolium, Gray, L c. I^ew Mexico ; JVright^ &c. 



EuPATORiuM SEROTINUM, Michx. San Pedro river, western Texas ; Bigelow. 



EuPATORiUM coNTzoiDES, VahL Symh, 3, p. 96. Lower Eio Grande ; Schott. Eocky raviaes, 

 near Santa Eosa ; Bigelow. Mr. Trecul gathered this at the mouths of the Mississippi. Do 

 Candolle's Mexican stations are from Berlandior's collections, in which it occurs under numbers 



1384,2210, 2355, etc. 

 PL Bar. Hort. Mona 



o 



(in my possession) 



CoNOCLiNiL'M ccELESTiNUM, DG. Pvodr. 5, p. 135. Eio Grande, near Laredo, Schott. 

 CoNCCLiNiuM BETONicuM, DC. L c. Lower Eio Grande, Schott, A nearly glabrous form, with 

 hastate-oblong and very obtuse leaves. Also a remarkable and doubtful form, with thin, gla- 



near the mouth of the Pecos. Perhaps the species, which 



brous, and entire ovate leaves from near the 



seems to be polymorphous, likewise includes C. Hartwegi, JF*a?p., the Eupatorium Hartwegi, 



Benth. PL Hariio. 



CoKOCLiMUM DissECTUM, Gray^ PL Wright^ 1, jp. 88. From the lower Eio Grande to the 

 borders of Sonora ; found by all the collectors. It is singular that this does not occur in 

 Berlandier's collection. 



MiKANiA scANDENs, Liuu. Southern Texas, Schott. &c. 



CoRETHROGYNE INCANA, Nutt. (excl. syn.) San Diego, California ; on hills ; Parry. Probably 

 this is no more than a state of C. Californica, without chaff on the receptacle. 



CoRETHROGYXE FiLAGiNiFOLiA, Ntitt. ; Torr. dj Gray^ FL 2, p. 98. There is a great deal of 



confusion in the description and synonymy of this and C. tomentella in the Flora of North 



C' EuPATOKiirir azurkim, DG. L c.p. 168, No, 1380 of Berlandier's colletioni was also gathered by Dr. Gregg at Monterey, 

 in better specimens. The beads are 30-40-flowered ; the corolla purpliisb, according to Gregg ; and the leaves are 

 broadly deltoid. The species is allied to E. deltoideum, but the leaves are not hastate, the heads are shorter and smaller, 

 the involucre more biseriate, its outermost scales broader, and the achenia nearly glabrous. 



