OF ARTS AND SCIENCES: JUNE 14, 1870. 291 



specimens the involucre is remarkably imbricate-bracteolated clown for 

 the quarter or third of an inch. Corolla bright yellow, its lobes a line 

 and a half lonjr. 



Linosyris Sonoriensis, n. sp. Glabra, parum viscidula, ramo- 

 sissima^ ramulis gracillimis ; foliis parvis filiformibus apice recurvo 

 nunc fere hamato ; capitulis laxe paniculatis; involucro 5-8-floro, 

 squamis pauciusculis subcarinatis coiiaceis margine scariosis apice 

 obtuso fere herbaceis oblongis, exterioribus brevioribus ovatis; ramis 

 styli appendice ovato-lanceolata obtusiuseula portionem stigmaticum 

 parum excedente superatis ; acheniis elavato-oblongis villosis. — Dis 

 trict of the Yaqui River, in the Mexican province of Sonora, 1869, 

 Dr. E. Palmer. 



20. Melampodium cupulatum, n. sp. Hispidulum ; caule erecto 

 ramosissimo ; foliis (inferioribus ignotis) ramealibus oblongo-lanceolatis 

 integerrimis basi attenuatis vix petiolatis ; pedunculis filiformibus sub- 

 paniculatis monocephalis; involucro gamophyllo crateriformi ebracteato 

 5-lobo, lobis lato-ovatis brevibus, squamis int. achenia involventibus 

 rugoso-tuberculatis apice truncatis hand cueullatis clausis; ligulis aureis. 

 — Mexican province of Sonora, Dr. E. Palmer. — Heads about as 

 large as those of M. cinereum, DC, but the bright yellow rays smaller: 

 scales of the involucre united to above the middle. 



Palafoxia leucophyela, n. sp. P. lineari affinis ob corollas 

 faucem angustam cylindricam tubo proprio lobisque brevibus 2-3-plo 

 longiorem ; foliis brevibus (semi - subpollicaribus lato-linearibus ob- 

 tusissimis utrinque canescenti-sericeis ; involucro magis pubescenle ; 

 pappo corolla incainata subdimidio breviore, paleis 4 majoribus lineari- 

 oblongis costa valida baud .excurrente emarginatis, 4 alternis breviori- 

 bus spathulato-oblongis costa medio evanida. Achenia extima 2-4 

 pro pappo soepius paleis paucis brevissimis corneis subconcretis coro- 

 nata. — Carmen Island, Gulf of California. Involucre half an inch, 

 achenia and corolla each four or five lines in length. The branching 

 stem is said to be about ten feet high, with an indurated, perhaps 

 woody base, and to flower through the season. — Cultivated in the 

 Botanic Garden at Cambridge, it is obviously disposed to become 

 shrubby. 



Pentstemon Palmeri, Gray, in Proceed. Am. Acad. 7, p. 378: 

 char, e pi. viva reformatus : Glaucescens, glaber, bipedalis ; foliis 

 crassiusculis, inferioribus spathulatis et ovato-lanceolatis argute denti- 

 culatis in petiolum marginatum angustatis, superioribus perfoliato-con 



