OF ARTS AND SCIENCES. 145 



interioribus paleisque arete involutis flores et pappura subaequanti- 

 bus ; acheniis glabris. Bogota, Mutis ? Holton. Quito, Jameson, 

 Couthouy, &c. 



JuNGiA PANICULATA {^Dumerilia paniculata, DC. Jungia ferrugi- 

 nea, Don et auct., non Linn. f. J. spectahilis, Less., non Don.) : fruti- 

 cosa ; foliis subtus tomentosis, tomento albido implexo ; capitulis con- 

 ferte cymosis plerisque pedicellatis multifloris ; involucri squamis inte- 

 rioribus paleisque floribus " luteis " pappoque subdimidio brevioribus ; 

 acheniis pilosiusculis. Petioli nunc nudi nunc basi quasi stipulati. — 

 Peru. — I suppose (although I cannot now verify the supposition) that 

 Linnaeus received his J. fey-ruginea, along with most of the new species 

 from "America Meridionali" described in the Supplement, from Mutis, 

 therefore probably from Santa Fe de Bogota, where Dr. Holton col- 

 lected what is manifestly the Linnaean species. In this species the in- 

 dividual heads, only 5 - 10-flowered, are commonly so closely clustered 

 in fascicles as to explain, if not to justify, the view taken by the younger 

 Linnaeus of a compound capitulum. The Peruvian species referred by 

 Don to J.ferruginea is quite different. De Candolle's (but not Don's) 

 J. spectahilis is the same as his Dumerilia paniculata without the stip- 

 ular appendages, which are inconstant. 



Perezia. Dr. Schultz goes too far when he refers the Mexican 

 and North American species of this extensive genus to Trixis. In the 

 former even the fewest-flowered species have a gradated imbricate in- 

 volucre and erostrate achenia. The latter has a uniserial involucre, 

 the scales all of the same length, with or without a cii'cle of spreading, 

 mostly foliaceous bracts. 



To Trixis frutescens I refer T. paradoxa, Cass., T. cacalioides, Don, 

 and T. Necea^ia, DC. T. angustifolia, DC, which is probably a nar- 

 row-leaved form of the older T. corymbosa, Don, is known by the linear- 

 lanceolate scales of the involuci-e gradually tapering to a point, the 

 margins of the leaves usually revolute. T. ohvallata, Hook. & Arn. 

 probably belongs to T. longifolia, Don. 



Cichoracece. 



AcHYROPHORUS CHONDRiLLOiDES {OreopMla chondrilloides, Don 

 in herb. Hook. Seriola Brasiliensis, subvar. b., Hook. «fe Arn. 

 Comp. Bot. Mag. I. p. 30) : glaucescens, undique glaberrimus, radice 

 fusiformi; caule folioso stricto mono - oligocephalo ; pedunculis elonga- 

 tis ; foliis subcarnosis lineari-lanceolatis integerrimis seu obsoletissime 



VOL, V. 19 



