OF ARTS AND SCIENCES. 115 



Albertinia Brasiliensis, Spreng. To this belongs Gardner's 

 Vernonia platycephala, and Nuttall's Symhlomeria Baldwimana. 



Paranephelids uniflorus, Poepp. & Endl. Of this three varie- 

 ties may be recognized, viz. a. pinnatifidus, j3. bullatus (P. bullatus, 

 Gray, Wedd. Chi. And. 1, p. 214), y. ovatus (P. ovatifolius, Gray, 

 ined. P. ovatus^ AVedd. 1. c. t. 37), which Weddell as well as I myself 

 had distinguished as species ; but an attentive examination of various 

 specimens leads to the conclusion that they are all forms of one. 



LiABUM LYRATUM (sp. nov.) : herbaccum ; foliis supra hirsutiusculis 

 glabratisve subtus arachnoideo-tomentosis, caulinis lyrato-lobatis peti- 

 olis basi auriculatis plerumque connatis, summis sessilibus basi dila- 

 tata connatis, lobo terminali maximo subinciso et repando-denticulato ; 

 pedunculo terminali elongato mono - oligocephalo ; involucri squamis 

 oblongis substriatis ; pappo e setis paleolisve rigidis intequalibus, exte- 

 rioribus dimidio brevioribus. Alibum Uahoides, Less. ? — Obrajillo, 

 Peru : also collected by Matthews, no. 3057. If this proves to be the 

 Alibum liaboides of Lessing, that genus cannot stand upon the char- 

 acters indicated. For, as well as can be told from imperfect spe- 

 cimens with the heads injured by insects, the pappus is similar in the 

 disk and ray, the exterior not really coroniform ; and the plant nearly 

 accords with Liabum, in the extended sense, or with Andromachia 

 § Pleionactis, DC., except that the bristles of the pappus are more 

 stout and rigid, and also fewer. They are fragile and deciduous, when 

 the summit of the achenium appears somewhat like a short crown. 



Eupatoriacece. 

 CONOCLINIUM SUBGLUTINOSUM (sp. nov.) : glabrum ; caulibus basi 

 sufFruticosis ; foliis longe petiolatis late deltoideo-ovatis acuminatis 

 serratis membranaceis tripli - quintuplinerviis utrinque subglutinosis ; 

 corymbo polycephalo ; involucri squamis 10-13 dorso subglutinosis 

 bicarinatis, exterioribus ovatis, intimis spathulatis acutis ; achenio gla- 

 berrimo. — Brazil, at the base of the Organ Mountains, near Rio. 

 This may be somewhere described as an Eupatorium, but I do not iden- 

 tify it with any published species. The receptacle is acutely conical. 



Asteroidece. 



VITTADINIA, A. Rich. 



Char, emend. Capitulum multiflorum, heterogamum ; fl. radii uni - 



pluriserialibus fcemineis, disci (pluribus paucisve) tubulosis hermaphro- 



ditis. Involucrum obconicum seu hemisphgericum, imbricatum, pauci- 



