230 



PROCEEDINGS OF THE AMERICAN ACADEMY 



MoNARDELLA TENUiFLORA, S. "Watson in herb. Soror M. ma- 

 cranthce, Gray, fruticuloso-caespitans, spithamcea, tomentuloso-cinerea; 

 foliis parvis (lamina lin. 3-4 longa) ovalibus ovatisve ; capitulis mul- 

 tifloris ; bracteis oblongis ; corolla albida, tubo filiformi longe exserlo 

 (ultra-semipollicari) lobis oblougo-lauceolatis multoties longiore. — 

 S. California, at San Jacinto, in San Diego Co., July, 1880, S. B. ^ 

 W. F. Parish. 



Appendix. 



BuRSERA MiCROPHYLLA, Gray, Proc. Am. Acad. v. 1.55. This 

 shrub was collected by Xantus at Cape San Lucas, Lower California, 

 in fruit, and soon after by Schott, in So- 

 nora, with a few flowers. It appears to 

 have all tlie characters of Bursera, except 

 that, according to Torrey's notes, the ovules 

 are solitary in the cells. In the original 

 description is the phrase, " Cotyledones con- 

 tortuplicatissima." Recently Dr. Parry and 

 the Messrs. Parish have collected it in 

 Arizona, near Maricopa, in fruit, and have 

 raised seedlings, "When sending some 

 seeds, the Brothers Parish called my atten- 

 tion to the singularly dissected cotyledons. 

 They are here represented from a drawing 

 of a seedling raised in the Botanic Garden of Harvard University, 

 the figure a little larger than life. Bentham and Hooker state that 

 the cotyledons of Bursera are " interdum trifidte." In this species 

 they are biternately dissected into narrow linear lobes. The leaves 

 of the next pair are simpler, the secondary lobes being fewer and 

 short ; the succeeding are pinnately parted into seven leaflets, passing 

 toward the adult leaves, which are pinnate with numerous very small 

 leaflets on an interruptedly margined rhachis. 



