VI. PLANTiE WRIGHTIAN.E. 65 



Eryngium loxgifolium, Cav. Ic. 6. t. 555 ; DC. Prodr. 4. p. 95 ? Las Playas 

 Springs, near the Sierra de los Animos, New Mexico; Oct. (1103.) — The radical 

 leaves are 3 or 4 feet long, 4 or 5 lines wide, tapering to a point, soft, resembling 

 those of a large Sparganium ; their margins entire and naked, or rarely with one or 

 two setiform teeth ; these sparingly appear on the similar but shorter cauline leaves. 

 The scales of the involucre are much shorter than the oval heads, linear-subulate, 

 often resembling the paleae and scarcely exceeding them. 



E. Leavenworthii, Ton: §• Groj/, Fl. 1. p. 604. Zoquete Creek, Western Texas; 

 July. 



E. Wrightii, Grai/, PL Wright, p. 78. Pebbly bed of the Limpio ; June ; also 

 mountain valleys in Sonora, Sept. (1104.) 



Berula angustifolia, Koch, Fl. Germ. Sf Heh. ed. 2. 1. p. 317 ^ Grai/, PI. Fendl. 

 p. 55. Helosciadium ] Californicum, Hook. ^ Am. Lot. Beech, p. 142? Sium 

 pusillum, Nutt. ? Margin of the Mimbres, New Mexico, July ; and of the Bar- 

 bocomori, Sonora, Sept. Between the Leona and Comanche Springs. (1105.) 

 Also found by Lindheimer in Western Texas. — The leaflets vary on the same plant, 

 from oblong and barely serrate, to deeply pinnatifid with linear and often incised 

 segments. I cannot clearly distinguish it from the European plant ; although it is 

 likely to be different. 



Leftocaulis patens, Nutt. Hills of the San Pedro and the Pecos ; May. (1106.) 



L. ECHiNATUs, Nutt. Dry soil near El Paso, and at Lake Santa Maria ; April. 

 (1384.) 



CicuTA MACULATA, Llmi. Springs on the Pecos ; June. 



Dadcosma laciniatum, Engelm. 8f Gray, PI. Lindh. 2. p. 210. Pebbly bed of 

 Pedregal Creek, Western Texas ; July. (1385.) 



Thaspium'? moxtanum, Gray, PL Fendl. j). 57; var. ? texuifolium. Hill-sides 

 of Coppermine Creek, New Mexico ; Aug. (1107.) — The specimens accord with 

 the slender-leaved form of Fendler's No. 276, except that they are larger, a foot or 

 more in height. The thick root is inodorous. The segment and lobes of the leaves 

 are all narrowly linear, from 6 to 18 lines long. Umbel on a long peduncle, 

 dense ; the primary and secondary rays short. Fruit 2 to 3 lines long, tasteless ; 

 the mericarps flattened as much as in most Angelicete, oval, each with rather wide 

 marginal wings, the three dorsal ribs extended into sharp and strong ridges, or one 

 or two of them into wings of variable size, occasionally as wide as the marginal 

 ones. Vittse single and large, or usually double, in each interval. 



Dauctjs pusillus, Michx. y. scaber, Torr. 8f Gray, Fl. 1. j). 636. D. scaber, 

 Nutt. Mountains near Lake Santa Maria, Chihuahua ; April. (1386.) 



Atrema Americana, iVw^A Prairies of the Leona and Nueces, May. (1108.) 



ARALIACE^. 



Aralia humilis, Cav. Ic. i. p. 7. t. 313. A. pubescens, DCJ. Mountain rapine, 

 in crevices of rocks, at Santa Cruz, Sonora; Sept. (1109.) — "Stem 2 to 4 feet 

 high," suffruticose, smooth. Leaflets membranaceous, 2 or 3 inches long, minutely 

 pubescent, at length glabrate, ovate or oblong-ovate and acuminate, some of them 



