OP ARTS AND SCIENCES. 431 



specimens of Palmer's former collection. The yellow ligule, broader 

 than long, is very little lobed, 



Galeana hastata, Llav. & Lex. Nov. Veg. 1. 12. {Unxia pra- 

 tensis, HBK, CJdamysperma pratense, Less.) Guadalajara, on the 

 tops of hills in low wet places surrounded by bushes; July. (2G3.) 



— It is remarkable that this unidentified genus should be found about 

 Guadalajara. I have, however, had a poor specimen of it, since the 

 year 1863, collected by Xantus near Manzanilla on the Pacific coast, 

 and also from another unrecorded source. 



Perittle Jaliscana, Gray, n. sp. Nana, e caudice lignescente 

 crasso, subpuberula ; ramis gracilibus foliosis ; foliis omnibus oppositis 

 longe petiolatis deltoideis nunc rhombeo-dilatatis angulato-dentatis ; 

 pedunculis subcorymbosis brevibus ; involucri bracteis 14 linearibus ; 

 ligulis nuUis ; corollis disci albidis ; acheniis lineari-oblongis hirsutis 

 marginibusque tiliformibus hirsuto-ciliatis ; pappo e setis tenuibus 2 

 achenio 2-3-plo brevioribus cum corona brevi squamellarum. — Rio 

 Blanco, in the crevices of exposed rocks ; September. (554.) 



OxYPAPPUS SCABER, Benth, Bot. Sulph. 118, t. 42. Rio Blanco, 

 in a depression under pines ; October. (644 ; but in the Cambridge 

 set as 444.) 



ScHKUHRiA HoPKiRKiA, Gray, PI. Wright. 2. 94, — but the faces 

 of the achenes only slightly nerved. Tequila, in rich grassy bottoms. 

 (365.) 



PoROPHTLLUM viRTDiFLORUM, DC. Prodr. 5. 648. A shrub, 5 or 

 6 feet high. Rio Blanco ; August. (325.) 



PoROPHYLLUM Seemanni, Schultz Bip. in Seem. Bot. Herald, 

 308. A narrow-leaved form. Rio Blanco, on hillsides ; October. 

 (658.) 



Dysodia POROPnvLLA, Cav. ; DC. Prodr. 5. 649. Guadalajara, in 

 a deep canon ; September. (441, the radiate form.) — Rio Blanco, on 

 hillsides ; October. (646, discoid.) 



Dysodia tagetiflora, Lag. ; Gray, PI. Wright. 1. 114, and Proc. 

 Amer. Acad. 19. 39. Rio Blanco, grassy bottoms and hillsides, very 

 common ; October. (656.) 



Tagetes subulata, Llav. & Lex. (T. multiseta, DC.) Guada- 

 lajara, in sandy bottoms ; September. (469.) 



Tagetes tknuifolta, Cav. Ic. 2. 54, 1. 169. A form with broader 

 leaflets than the type. Rio Blanco, among rocks ; September. (574.) 



— Also a form answering to T. peduncularia, Lag. Chapala, by road- 

 sides. (709.) 



Pectis diffusa, Hook. & Arn. Bot. Beech. 296? Rio Blanco; 



