66 CALIFORNIA ACADEMY OF SCIENCES. 



STUDIES IN THE BOTANY OF CALFORNIA AND PARTS 



ADJACENT. 



BY EDWARD LEE GREENE. 

 I. 



VANCOUVERIA. • 

 V. chrysantha. 



A foot high, more villous than V. hexandra, with finer 

 hairs, leaves of more coriaceous texture, obscurely 3-anglecl 

 or lobed, the angles emarginate : scape exceeding the leaves : 

 raceme few-(lf) — 15)flowered: pedicels stout: nowers large, 

 golden yellow, nodding: bractlets linear-oblong: ovary 

 densely glandular, pubescent: fruit not .seen. 



Coast mountains of Oregon, on about the forty-second 

 parallel, Thomas Howell, June 8th, 1884. 



A welcome addition to a genus hitherto supposed to be 

 monotypical. The deep yellow flowers are more than thrice 

 the size of those of the original and more common species. 

 The pubescence is also different. That of V. hexandra is 

 much less in quantity, shorter, and the hairs, under a lens, 

 are seen to be flat and twisted, as well as strongly glandular. 

 There is, moreover, no trace of hairs or glands on the ova- 

 ries of that species. 



ESCHSCHOLTZIA. 



A careful study of these plants as they grow wild on our 

 plains and hillsides, has brought to light some good charac- 

 ters in the shape, degree of expansion and persistency of 

 the petals. For example, in all save one of the species they 

 persist for two or more days, opening each morning and 

 closing at nightfall, while in the exceptional species they 

 are very fugacious, hardly to be found adhering to their 

 receptacle after nine or ten o'clock in the morning. In 

 about half the species the corolla does not expand beyond 

 the funnelform or broadly campanulate; in the rest it un- 



