CHAPTER I. 
LIST AMD DESCRIPTION OF THE PLANTS COLLECTED. 
BY JOHN TORREY, M. D. 
Ranunculus californicus, Benth. PI. Hartw. p. 295. Santa Clara to Los Angeles; Febru¬ 
ary to March. The sepals of this species are frequently partly or entirely white. 
Delphinium decorum, Fisch. & Mey. Index sem. (3) Tetrop. p. 33. Cajon Pass ; April. 
Paeonia Brownii, Dougl. in Hook. FI. Bor.-Amer. 1, p. 27. P. californica, Nutt, in Torr. 
& Gray, FI. 1 ,p. 664. In the dried specimens the lower surface of the leaves is of a much 
lighter green color than the upper. 
Argemone hispida, Gray, PI. Fendl. p. 5. Burro mountains, New Mexico ; August. The 
specimens seem to confirm the characters of this species. 
Eschscholtzia californica, Hook & Am.; Torr. & Gray, FI. 1, p. 664. Santa Barbara 
and San Diego ; February and March. Variable in the size of the flowers. This is the well 
known “ Californian Poppy,” now a common plant in gardens. 
Eschscholtzia Douglasii, Hook. & Am.; Torr. & Gray , l. c. Valley of the Salinas river, 
California ; November. The only specimen has a thick ligneous root, like a perennial, which 
is often seen in the autumnal state of this plant. 
Dendromecon rigidum, Benth.; Torr. & Gray, FI. 1, p. 64. San Diego ; May, (flowers 
and fruit.) A low and rather ornamental shrub. 
Platystemon californicum, Benth.; Torr. & Gray, FI. 1, p. 65. Tulare valley and San 
Bernardino ; April. 
Platystemon californicum, var. leiocarpum, Torr. & Gray, l. c. Los Angeles and San 
Isabel; March—May. Pedicels and calyx very villous, with long white hairs. 
Nasturtium curvisiliqua, Nutt, in Torr. & Gray, FI. 1, p. 73. San Jose; November, (in 
fruit.) 
Cardamine angulata, Hook.; Torr. & Gray, FI. 1 , p. 84. C. paucisecta, Benth. PI. Hartw. 
p. 297. Santa Barbara ; January. 
Sisymbrium canescens, Nutt.; Torr. & Gray, FI. 1, p. 92. Santa Barbara county; Febru¬ 
ary, (in flower.) 
Erysimum asperum, DC.; Torr. & Gray, FI. 1, p. 96. Puerto del Dado, New Mexico; 
July. 
Erysimum asperum, var. elatum. E. elatum, Nutt, in Torr. & Gray, l. c. Santa Inez; 
January. S. arkansanum, Nutt., is another form of this variable species. 
Sisymbrium deflexum, Harvey Mss.; Torr. in Whipple’s Pep. Santa Clara valley; Feb¬ 
ruary. 
