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4 



UNI./"n STA IS AND MEXICAN 



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ART. 



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Vesicarta lasiocarpa, Hook.: Gray, I. <\ p. 13, in not. Elm ..iw.v, ,^.11..^ 

 Schott. Kin ggold barracks ; Capi. A. /i. Smith. 



K 11. Prairies and sandy banks, El Paso to the Copper Mines ; Bigeloiv, Thurher, Overflowed 

 •anks of the Gila ; March; Parry. 



DiTHYR^A Califorxica, Harv. in Hook. Lond. Jour. Bot. 4, p, 77, t, 5 ; Englm. 1. c. Dry river 

 leds of the ColoradOj California ; Schott. 



Thlaspi FendlerI; Gray^ PI. Wrigld^ 2, p. 15. Organ mountains and Copper Mines^ New 

 Mexico; April — May ; Big eloiv^ Thurher. Guadaloupe Pass and Tubac, Sonora; February — March; 

 Parry. The radical and lower cauline leaves are often denticulate. 



Gray J PI. Fendl 



Hill-sides on the lower Rio Grande 



? 



Schott 



vommon near Eagle Pass ; March 



Hymen OLOBUS pi:p>ens^ Gray^ PL Wright y 1, ^- 9. Wet places near Rock creek ; July ; Bigeloia^ 



x^arry. 



Lepidium alyssoides^ Gray, PL Fendl. p. 10. Chihuahua and on the Pecos ; Thurher. Low 



jrounds near El Paso, and on the Organ mountains ; May — October ; Bigeloiv. Valley of the 

 Hla; Schott. Santa Cruz valley, Sonora ; Thurher. The late secondary leaves on si:)ecimens 

 -rem the Organ mountains are deeply pinnatifid, and the segments toothed. 



Lepidium Wrightii, Gray^ PL Wright^ 2, p. 15. Ravines near El Paso and at the Copper 

 Mines ; March — April. 

 Lepidium intermedium, Gray^ L c. Ravines, Organ mountains ; April ; Bigeloiv. 



Hooh. Ic, L t. 41 : Torr. & 



116. Mission of San Luis Rey, 



klifornia; Parry. 



Lepidium nitidum, Nutt. in Torr. & Gray, L c. With the last ; Parry. San Isabel, Cali- 

 ornia ; February; TJmrher. 



Lepidium Californicum, Nutt. L c; var. foliis bipinnatifidis ; siliculis majoribus margine his- 

 ddis. With the last, and in the interior of the country as far east as the mountains. 



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The following note is kindly furnished by my friend, Dr, Gray : 



*' Stntiilipsis Greggh, (Gray:) canescens vel subcinerea ; foHis abovatis oblongisve sub obatis vel sinuato-pinnatifidis ple- 



sque petiolatis roseis albisve ; siliculis ellipticis (nuncoi'alibus) complanatis insigniter eraarginatis, valvis dorso acutissimusapice 



larginato-subproductis. San Fernando, Coahuila; BerlandieVj (No. 822, 2231 Sc 2242.) Berlandier's specimens, though 



. reen or glabrate, only tlie youn^ parts being at all hoary, and the leaves larger and rounder, yet apparently belong to the 



ame species a3 Dr. Gregg's plant, on which this genus was founded The silicles vary from four to seven lines in length, are 



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blong-elHplical, or sometimes broadly oval, with a pretty strong emargination at the apex, strongly ob-compressed, and with 

 n acute margin. Tlje root is probably only biennial. The specific character here given is to distinguish this species from the 

 allowing : 



" SvNTHLiPsis Berlandieri, (sp. nov.) : puberula ; foliis oblongis pinnatifido-laclniatis, caulinis sessilibus ; petalia luteis ; sili- 

 ulis orbiculatis subretusis, valvis ad apicem baud productis. xMatamoras ; March and April ; BerlandieTy (No. 710, 778, 1517, 

 127, 2198, 3017, 3102.) Root apparently only biennial. Stenos diffuse or decumbent, about a foot in length, pubernlent, as is 



'le foliage, fee, with a minute and inconspicuous stellular down. Leaves an inch or leas in lejjgth, 3-G lines wide, laciniatoly 

 innatifidand toothed. Racemes elongated in fruit, secund ; the pedicels four to eight hues long, recurved in fruit ; style about 

 le length of the canescent ob-coropressed ovary. Silicle three lines in length and breadth, slightly retuse at both ends, or at 

 ;ast at the apex, tipped with a slender style of a line in length ; the valves strongly navicular, barely acute on the back, which 

 % not produced into a margin at the apex. Seeds eight to ten in each ceU, orbicular, flat, marginlcss, on filiform free funiculi, 

 'his plant in flower might be taken for one of the glabrate species of Vesicaria, but its silicles, strongly flattened contrary to 

 le narrow partition, and the position of the seeds, exclude it from that genus, and from the tribe of Alyssinete ; and manifestly 



r^fer it to Synthlipsis, with which it accords in habit." — (^, Gray.) 



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