BOTANICAL GAZETTE. 257 



habit and the umbellate inflorescence of Euevax. The plant is 

 of robust habit, but depressed, and nearly stainless, and the heads 

 are borne in crowded umbels subtended by rosulately arranged 

 foliage. The branches are stout, but short and horizontal. Al- 

 though the specific name proposed by Dr. Kellogg, some years 

 since, is neither strictly applicable, nor in the genus Evax very 

 . distinctive, yet I suppose it ought to be retained; and the speci- 

 mens now collected will be distributed under the name Evax 

 acaulis, Greene. 



The curious Madia citriodora, Greene, Torr. Bull. IX. 63, 

 with akenes so strangely like those of a Hemizonia, hitherto 

 known only from Yreka, in the extreme north of the State, is 

 also now found by Mrs. Curran, not far from Sacramento. Her 

 specimens are larger and more branching than the original ones, 

 but have the same pleasant fragrance, with all the technical char- 

 acters of the species. 



Madia Yosemitana, Parry, I find in the herbarium of the 

 California Academy, collected long ago by Dr. Eisen, near 

 Fresno, and by Mr. Elisha Brooks, in the upper part of the 

 Sacramento Valley, near Oroville. These specimens are all very 

 much larger, with larger heads, and the flowers in them much 

 more numerous than in the Yosemite plant. 



It is not noted in the Bot. Cal. that two of the species of 

 Madia — M. Nuttalii and M. Bolanderi — are perennials. That 

 the last named species is so, I discovered but recently, and I now 

 conclude that Mr. Pringle's Mt. Shasta plant, which was dis- 

 tributed as a new species, is only a variety of 31. Bolanderi, dif- 

 fering from the type mainly by its shorter pappus. In Mr. Bo- 

 lander's specimens I find occasionally a short pappus on a ray- 

 akene. 



It is nowhere noted in the books that the genera Layia and 

 Hemizonia have different seasons of flowering, the former being 

 vernal, the latter autumnal. There are, indeed, in the case of 

 Hemizonia a few exceptions. H. luzukefolia, DC will some- 

 times begin to flower in April, but it is in its best state in Octo- 

 ber. H Kelloggii, Greene, is more strictly vernal, being in full 

 glory during the month of May. 



Asclepias incarnata, L. This species, which, so far as I can 

 see, is not accredited to the Pacific slope of our continent, ap- 

 pears to have been collected in a swamp near San Jose, long ago, 

 by Dr. Bolander. An excellent specimen, so ticketed, in the 

 doctor's own handwriting, I find in the herbarium of the Acad- 

 emy. — E. L. Greene. 



