38 . UNITED STATES 'AND MEXICAN BOUNDARY. 



Claytonia perfoliata, Donn: To 



Whippl. Hep. p. 70 



Monterey, California; Parry. Yar, parviflora, Torr. I. c. Napa county, California; Thurher. 



Claytonia Virginica, L{77ti.; Torr. d' Gray, FL 1, p. 198. Ojo San Francisco ; February ; 



Parry. 



Sesuvium portulacastrum, Linn.; DC. Prodr. 3, p. 352. On the Rio Grande, from Dona Ana, 

 New Mexico, to the Gulf; April — Octo*ber. Common along the Gila ; Thurher. 



PoRTULACA PILOSA, Linu.; Engelm, in Gray, PL Lindh. 2, p. 154; PI. Wright^ 1^ p. 13. 

 Howard's Springs and dry ravines near the Limpio mountains ; July — August; also near the 

 Copper Mines ; Blgeloiu, 



PoRTULACA LANCEOLATA, Engelm. L c. Rocky places, Mule Springs, and Puerte de Paysano ; 

 August — September ; Bigeloio. 



MALVACE^, 



Malva BOREALI&, Wolm; Gray, PI. Fendl. p. 15. Monterey, California ; Parry. 

 Malvastrum Amekicanum, Malva Americana^ L. Sp.p. 968, (non Cavan.,) DO. Prodr. 1, p. 



430. On the lower Rio Grande ; Schotf. Rugel 



West 



(No. 89 ; Sliuttleworth.) 



Malvastroi MoNROANUM, Gray^ PI. Fendl. p. 21. Malva monroana, Dough in Bot. Reg, t. 

 1306. M. fasciculata, Nuft. in Torr. dt Gray, FL 1, _p. 225. Near San Diego, California; 



Parry. * 



Malvastrum Tiiurreri, Gray^ PL Thurb. p. 307. Santa Cruz valley, Sonora; July; Thurher, 

 I can find no sufficient characters for distinguishing this from M. Monroanum. 



Malvastrum cocci:neum, Gray^ PL FendL p. 24. Gravelly and sandy plains on the Limpia, 

 Rock creek, and Rio Grande ; also in New Mexico, Chihuahua, and on the Gila. 



Malvastrum ped atifidum, (rra?/, PL Wright, I, p. 17. Frontera, Texas; March; Bigeloiv, 



Parry, 



Malvastrum leptophyllum. Gray, PL Wright^ ^j P* l*^- Ojo de Vaca, <fec. Chihuahua; 



Thurher. Our specimens are smoother than Wright's plant. 



Callirhoe involucrata. Gray, PL FendL p. 15, Gen. III. t. 117- Moist grounds, valley of 

 the Pecos, and between Eagle Pass and Laredo, Texas. March — April ; Schott. 



Sidalcea nuMiLis, Gray, L c. p. 23. Sida malv^eflora, Hooh. & Am. Bot. Beechey,p, 326, 

 non LindL Monterey and near Santa Barbara, California ; Parry. San Diego, Thurher. 



Sidalcea MALViEFLORA, Gray, PL Wright, 1, p. 16. Sida malvaijflora, 3Iog. & Sesse. DC. 

 Prodr. 1, p. 194. Marshes of the Lirapia and hills at the Copper Mines ; July ; Bigeloin. Ojo 

 de Gavilan and Rio Mimhres ; Thurher. El Podrero, Sonora ; 

 occurs with white flowers. 



Sida hederacea, Torr. in Gray, PL FendL p. 23, ad not. New Mexico, on the upper Rio 

 Grande, Sonora, and California; northward to Oregon. 



SmA FiLiCAULis, Torr. & Gray, FL 1, p. — . Rocky and gravelly hills, Howard Springs, and 

 between Van Horn's Wells and Muerte ; Bigelow, 



Sida filicaults, var. setosa. Gray, PL Wright, 2, p. 22. Rock creek and near the Great 



June : Schott, It sometimes 



Canon of the Rio Grande ; Bigelow, Parry. 



filipes 



Crevices of rocks and ravines between the Pecos 



and San Pedro ; * Schott. El Paso ; Bigeloio, 



• 'I 



