OF ARTS AND SCIENCES. 427 



mentuloso-pubcscetis ; foliis alternis membranaceis (4-5-poIlicaribus) 

 deltoideo- vel siibcordato-ovatis basique subito in petiolura gracilem 

 contractis ; cymis pleiocepbalis laxis ; capitulis cylindraceis semipolli- 

 caribus ; pedunculis tenuibus bracteis tenui-linearibus fulcratis ; in- 

 volucre e bracteis 5-10 erectis disci paleis mollibus inermibus (apice 

 nunc petaloideo-flavidis) dimidio brevioribus ; ligulis 5-6 aureis ova- 

 libus ; receptaculo planiusculo ; acheuiis disci augusto-oblongis (lin. 3 

 longis) villosis paleis 2 lanceolatis aristiformibus brevibus cum inter- 

 mediis utrinque 3-4 dimidio brevioribus laciniatis coronatis. — Chapala, 

 in ravines and on hillsides. (718.) This is evidently the Helian- 

 tlius quinqueradiatus, Cav. Ic. 3. 36, t. 272, a peculiar but genuine 

 species of Viguiera, for which the name of Cavanilles is to be re- 

 tained, although the rays are more commonly six. Their fewness 

 and the narrow heads in an ample cyme give the species a peculiar 

 appearance. 



ViGUiKK.v Palmeri, Gray, n. sp. Fruticosa, orgyalis, brachiato- 

 ramosa, scabro-hispidula ; foliis omnibus oppositis ovato-lanceolatis 

 acuminatis parum denticulatis a basi rotundata fere triplinerviis ven- 

 ulis transversis subtus prominulis retirulatis, petiolo brevissimo ; ca- 

 pitulis paucis ad apicem confertis parum jjedunculatis globosis vix 

 semipollicem latis ; involucre e bracteis appendice lineari vel sublan- 

 ceolata herbacea reflexa auctis squarroso ; ligulis angustis flavis; 

 achenio palea subqnadrata coriacea valde complicata incluso subfalcato 

 glabro vel glabriusculo aristis binis subulatis squamellisque inter- 

 mediis plurimis minimis corouato. — Rio Blanco, sides of ravines ; 

 October. (738.) 



Helianthus ANNUUS, Linn. Rio Blanco ; July. (187.) — " Maiz 

 de Teja " ; the seeds have the property of coloring mescal and of 

 deepening the color of wines. 



Perymenium Cervantesii, DC. Prodr. 5. 609. Rio Blanco, on 

 gravelly hillsides; August. (310.) — P. Mendezii, DC, is probably 

 a form of this species. 



Encelia (Simsia) sanguinea, Hemsl. 1. c. 185, var. (?) Pal- 

 MERi ; foliis (superioribus) omnibus integris ovato-lanceolatis basi lata 

 sessilibus ; acheniis etiam ovariis glabris calvis. — Often 4 feet high, 

 purple-flowered. Rio Blanco, in thickets on the sides of canons ; 

 September. (602.) 



Encelia (Simsia) Mexicana, Mart, in DC. Prodr. 5. 578. Gua- 

 dalajara, in cornfields and fences; October. (622.) 



Verbesina stricta. Gray, Proc Amer. Acad. 19. 13. (Actinom- 

 er("s, Hemsl.) Rio Blanco, near streams ; July. (163.) 



