BOTANY. 11 



10 inches long, are in the collection. This is the tree so well known under the name of 3Icsquite 

 or Mesqnif. A gum, resembling gum arabic^ exudes from the hark. 



Cerasus serotina, DC; Torr. & Gray, Fl. l,p. 410. Sauz valley; August. In fruit. 



Adenostoma fasciculata, Hook. <fe Am. Bot. Beechey, j)- 139, t. 139, and p. 338. Near San 

 Diego ; not rare. May. 



HoRKELiA FUSCA, Liudl. Bot. Reg. t. 1997 ; Torr. & Gray, Fl. 1, p. 435. Near Los Angeles 

 and Sau Gabriel ; March. Tlie petals vary in breadth in different states of the flower. 



RuBUS URSINUS, Cham, and Schlecht. in Linncea, 2, p. 11. Near Santa Barbara ; January. 



KosA BLANDA, Ait.; Torr. & Gray, Fl. 1, p. 459. On the Mimbres. In fruit; August. 

 The stipular prickles are straight and slender, and there are scattered stiff bristles on the 

 stem. 



Rosa cinnamomea, Linn.; Torr & Gray, Fl. 1, p. 459. On the Salinas, and near San Bernar- 

 dino ; April. Our specimens agree with the European jjlant in most respects. The leaflets are 

 pulverulent, rusty underneath. The prickles are all stipular and stout. 



Zauschneria Californica, var. « and /?. Torr. cfc Gray, Fl. 1, p. 486. Sau Juan, California, 

 and Puerto del Dado ; August and November. 



OENOTHERA coRONOPiFOLiA, Torr. & Gray, Fl. l,p. 495. On the Gila river ; June. 



(ExoTHERA viNOSA, Lindl.; Torr. & Gray, Fl. 1, p. 503. Near San Diego ; April. 



OENOTHERA viMiNEA, Dougl. in Hook. Bot. Mag. t. 28Y3. San Isabel ; May. 



OENOTHERA BISTORTA, Nutt. ill Torr. & Gray, Fl. 1, p. 508. With the last ; May. 



CENbTHERA ALBiCAULis, Nutt., var. integrifolia ? Kikal Mungo ; March. A low form, with 

 leaves on long tapering petioles, and the lamina repand-dentate at the base. " It seems to be 

 one of the numerous varieties of Oenothera albicaulis. 



CEnothera cheiranthifolia, Hornem.; Lindl. Bot. Beg. t. 1040. Santa Clara, Tulare valley, 

 San Gabriel, &c.; March. 



CEnothera strigulosa, Torr. c6 Gray, Fl. 1, p. 512. Los Angeles, &c.; common; March. 



Apodanthera? undulata, (?ra2/, P?. Wright. 2, p. ^iQ. San Pedro of the Gila ; July. Male 

 flowers only. 



Cucurbita digitata, Gray., I. c. On the Burro mountains ; August. Flowers or peduncles 

 nearly two inches long. Dr. Gray (1. c.) remarks that the calyx-lobes of the male flowers are 

 obsolete ; but they are quite conspicuous in Dr. Antisell's specimens. Santa Barbara and Los 

 Angeles. 



Megakrhiza Californica, Torr. in Whipple's Rep.; January and March. This is one 

 of the plants known in California by the name of hig-root or giant-root, of which a more detailed 

 account is given in the work just quoted. 



Kibes Californicum, Hoolc. & Am. Bot, Beechey, p. 346. Salinas valley and Santa Inez ; 

 January. Some of the specimens have only small sub-axillary species, without scattered prickles ; 

 others have strong stipular spines and scattered retrorse prickles. To this species we refer R. 

 occidentale and subvestitum. See Whipple's Report. 



Ribes malvaceum. Smith; Torr. & Gray, Fl. \,p. 552. San Luis Obispo ; January. 



EcHiNOCACTirs Lecontei, Eiigelin. in Proceed. Amer. Acad. Sc. 3, p. 19, atul in Whipple's Pa- 

 cific R. R. Rep. Colorado desert, California. 



FouQUiERiA splendens, Engelm. in Wisliz. N. Mex. p. 98; Gray, PI. Wright, l,p. 76, and 2, 

 p. 63. F. spinosa, Tm-r. in Emory's Rep. 147, t. 8, excl. syn. Cariso creek, California ; May. 



LiTHOPHRAGMA CYMBALARiA, Torr . & Gray , Fl. 1 , p. 585. Santa Clara and Santa Barbara ; 

 February. 



