82 UNITED STATES AND MEXICAN BOUNDARY。 
DENDROMECON RIGIDUM, Benth. l. с.; Hook. Ic. t. 37; Torr. d Gray, l. с. (Tas. III.) In 
various parts of California, ae near the seacoast. 
ЕОМАБГАСЕЛ, 
CORYDALIS AUREA, Willd. var. Siliquis breviusculis, ete., Gray, Pl. Wright, 2, p. 10. Dry 
ravines, Frontera; Bigelow, etc. Hueco mountains, Texas, March ; Thurber. 
DICENTRA 2 CHRYSANTHA, Hook. Ё Arn. Bot. Beech. р. 320, t. 13; Torr. & Gray, Fl. 1, p. 665. 
San Felipe, California; Parry. Between San Diego and the Rio Colorado; Schott. Monterey; 
Mr. Andrews. А tall branching plant, (3—4 feet high,) with showy golden yellow blossoms in 
panicles. It differs from Dicentra in the filaments of the two phalanges being united nearly to 
the summit, where alone they are distinct ; in the dull verrucose horse-shoe-form seeds, which 
are thick on the margin, and destitute of a strophiole or crest ; and, lastly, in a peculiar habit. 
The pollen is spherical, as in Dicentra. It may be considered as the type of a genus or sub- 
genus, to which the name of Chrysocapnos would not be inappropriate. 4 
CRUCIFERA:. 
CHEIRANTHUS ASPER, Cham. & Schlecht. in Linnaea, 1, p. 14, excl. syn. С. capitatus, Dougl. in 
Hook. Fl. Bor. Amer. 1, р. 38. Erysimum grandiflorum, Nutt. in Torr. & Gray, Fl. 1, р. 96. | 
Sandy hills near Monterey, California; May; Parry. The specimens are in flower and fruit. E 
The siliques are an inch and three-quarters long, nearly two lines broad, and much compressed. 
Seeds narrowly winged, and sometimes partly in two rows. Cotyledons distinctly accumbent, 
although the radicle is, in some cases, slightly oblique. An original specimen of Nuttall's 
plant agrees exactly with ours, but it has only very young fruit. The ripe fruit and seeds have | 
probably not been seen before. 4 
ARABIS MACROCARPA. Turritis macrocarpa, Nutt. in Torr. & Gray, Fl. 1, р. 15: Wet E Л 
San Isabel, California; May; Thurber. 
ARABIS PATULA. Turritis patula, Graham; Gray, Pl. Fendl. p. Т. Near the Mimbres, New 
Mexico; April; Bigelow. Sonora; Parry. 
CARDAMINE ANGULATA, Hook. Bot. Misc. 1, p. 343, t. 69; Torr. Bot. Whipp. Rep. р. 65. 0. 
paucisecta, Benth. Pl. Hartw. p. 297. California; Parry. The station not recorded, but pro- | 
bably Monterey. | 
DRYOPETELON RUNCINATUM, Gray, Pl. Wright, 2, p. 11, #. 11. Mountains of Chihuahua and | 
_ Sonora; March—September ; Bigelow, Parry, Schott, Hueco mountains, thirty miles east of E] - 
Paso, Texas; Thurber. | 
STREPTANTHUS LINEARIFOLIUS, Gray, РІ. Fendl. р. Т, and Pl. Wright, 1, p. Т; and 2, p. 10. 
Hills near the Copper Mines, June—August ; puo. Guadaloupe Сайоп, Sonora ; Thurber. ; 
Chihuahua; Schott. 
_-  STREPTANTHUS PLATYCARPUS, Gray, Pl. Wright, 2, p. 10. Mountain ravines, New Mexico ; also 
in western Texas and Chihuahua, along the Rio Grande, and west, to Жетен —A - 
Bigelow, Parry. 
STREPTANTHUS CARINATUS, Gray, 1. с. Ravines near El Paso; April. A showy species, and 
worthy of cultivation. 
TREPTANTHUS PETIOLARIS, Gray, Pl. Fendl. in not. p. 1. кү, hills, near r the Meu 
Melek and Mountains of Muerte, etc. ; July ; Bigelow. 
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