66 



UNITED STATES AND MEXICAN BOUNDARY. 



CEnothera LAVANDULiEFOLiA, TovT, dt Gray, I. c. Between Eagle Springs and Van Horn's 

 well, Texas, June ; Bigeloiu. 



(H^fOiKEB.A Hartwegi, Benth. FL Hartio. p. 1; Gj^aij, Fl. Wright. 1^ p. T2. CE. Fendlerij 

 Gray, Fl. Fendl. ]j. 45. On the Rio G-rande and its tributaries, from El Paso to Eagle Pass; 

 April — June. 



(Enothera tubicolAj, Gray^ PI. Wriglit. 1,^. 71. Gravelly places neart he Limpio^ ^^J] 

 Bigeloio. 



(Enotheea cham^kerioides, Gray ^ pi. WrigU. 2, p. 58. Frontera and Cook's Spring, Texas, 

 April; Bigeloio. San Bernardino and Santa Maria^ Chihuahua, March; Perry. 



OEnotiieka bistouta, Nutt.^ in Torr & Gray^ FL 1, p. 608. San Pasq^ual, California, May ; 

 Thurher. 



GEnotheka gaue^floeA; Torr. d Gray^ FL p. 510. Valley of the Gila, Sonora, May; 

 ScJiott, Dry hed of a river near Monterey^ California; Dr. Andreios. 



(Enothera clav^formis, Torr. d Frem. in Fremont's 2 Fep. p. 314; Torr. in Pacijlc Railroad 

 Expl. 5, p. 360. Colorado desert ; BcJiott. 



OENOTHERA CARDioPHTLLA, Torr. ?. c. Witli the last; /ScAo^^. 



(Enothera vinosa, Lindl. Bat. Reg. t. 1880. San Diego, California, May; Thurher. 



(Enothera viminea, Dougl. With the last. May ; Thurher. 



Gaura villosa, Torr. in Ann. Lye. New Jorh, 2, p. 200. Mountain ravines and moist places 

 near Rock creek, July; Bigeloio. 



Gauka DruMxMOndii, Torr, & Gray^ FL 1, p. 518. On the lower Rio Grande, Octoher, (in 

 flower and fruit) Schott. 



Gauea suffulta, Engelm. in PL Lindh. 2, p. 190; Gray^ PL Wright. 1, p. 72. Western Texas 



w 



on the lower Eio Grande ; Schott. 



Gauea parviflora, Dougl., Torr. dh Gray, Fl. l,p. 519. 

 also in the valley of the Gila, May — July, 



Weste 



and New Mexico ; 



New Mexico 

 July. 



Nutt., Torr. d Gray, I. c; Gray, Fl. Wright. 1, p. 73. Organ mountains, 

 lown the valley of the Rio Grande to Easle Pass, west to Sonora. April 



Stenosiphon viRGATUS, SpacJi.] Monog. Onagr. Torr. ^Gray, FL 1, p. 520. Central Texas; 

 Thurher. 



f Eulobus Californicijs, Nutt. in Torr dt Gray, Fl. 1, p. 515. Yalley of the Gila, May; Schott. 

 San Pasq,ual, California ; Thurher. 



JussiuEA REPENS, Linn. Mant. p. 381; Torr. d Gray, I. c. p. 520. Southwestern Texas and 



Sonora, April to Octoher. 



LuDWiGiA NATAXS, Ell. Slc. l,p. 581. Western Texas, October ; Bigelow. Ojo Caliente, Chi- 

 huahua ; Thurher. A form with much smaller leaves than usual, was found in the Limpio 

 river, by Bigelow. 



Proserpinaca PALUSTRis, Linn. Torr, d Gray, Fl. l,p. 528. Pedro Pinta, Texas, October; 



Bigelow. 



Michx. Fl 



Ojo Caliente^ Chihuahua ; Thurher 



LOASACE^. 



Cevallia siNUATA, Lag. Nov. Gen. d Sp. p. 11, t. 1; Gray, PI. Wright. 1, p. 74. Common 

 on hill sides along the Bio Grande ; also, in Sonora, May to October. 



^. L ■ 



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