176 CALIFORNIA ACADEMY OF SCIENCES. 



Encelia Palmeri Vasey & Kose. — Magdalena Island and 

 San Gregorio. 



Encelia conspersa Benth. — Magdalena Island. 



Encelia radians. Perennial, stems herbaceous, 2 feet 

 high, white-tomentose at the lower nodes, nearly glabrous 

 above: leaves alternate, ovate-acuminate, undulate, 2-3 

 inches long on petioles ^ their length: inflorescence loosely 

 paniculate nearly naked. Peduncles 3-5 inches long : 

 heads showy, Ih inches broad: involucral bracts rather nar- 

 row, acuminate, beset with soft white hairs, sometimes 

 ciliate: bracts of the receptacle broad, 2-6 notched at apex, 

 the upper two-thirds pubescent: rays broad, 15 mm. long, 

 neutral: anther tips acute: style-branches broadened up- 

 ward, triangular with 3 apiculations at tip: akenes pubes- 

 cent on both surfaces, villous on the margins. — San Gre- 

 gorio. 



BiDENS PILOSA L. — Comondu, Socorro. 



Leptosyne parthenioides (Benth.) The leaves are some- 

 times very few and narrowly lobed or the upper entire; 

 sometimes much dissected. The rays are variable in number 

 and sometimes wanting, in color varying from lilac-purple 

 to nearly white with darker veins. The outer akenes have 

 a pappus of two short, retrorsely-hispid awns, sometimes re- 

 duced to mere vestiges, the inner ones naked and succes- 

 sively narrower; the thickened margin sometimes merely 

 rugose, sometimes dissected. Undoubtedly L. heterocarpa 

 Gray, and probably L. parthenioides, var. disseda Wsitson, of 

 Dr. Palmer's collection. — Magdalena Island, Comondu, 

 Purisima. 



Leptosyne dissecta (Benth.) Perennial, suffrutescent, 

 growing in clumps among rocks; rays 1-6, yelloAv; akenes 

 smooth or muriculate on the back, the margins either en- 

 tire or dissected into lobes, the inner face, either with or 

 without a central ridge similar to the margin; in all the 



