KOBINSON. — STUDIES IN THE EUPATORIEAE. 47 



which is still extant in the herbarium of the Linnean Society of 

 London. It is a Colombian plant, apparently perennial, with deltoid- 

 ovate, strongly cordate leaves and contracted inflorescence, the pedicels 

 being very short. It is not yet certain whether this plant has received 

 a later name, but it is pretty close to E. ballotaefolium HBK. and of 

 course has nothing whatever to do with the E. urticifolium of the 

 Flora Brasiliensis or of recent ^Titers on the flora of Argentina and 

 Paraguay. 



MiKANiA Badieri DC. Prod. v. 194 (1896). This excellent species 

 is well marked by its coriaceous glabrous essentially entire leaves, 

 which are rather abruptly acuminate, ending in a caudate and often 

 falcate tip. The petioles are furthermore much flattened and rather 

 broad. The species, notwithstanding these distinctive characters, has 

 been reduced by Grisebach (Veg. Karaib. 85) to J/. lat'tfoUa J. E. 

 Smith (Rees, Cyclop, xxiii. n. 8). Grisebach also implies that it is 

 suspiciously close to M. amara Willd. However, the inflorescences in 

 M. Badieri are pyramidal panicles in which the heads are subspicately 

 arranged, while both in M. amara Willd. and in M. latlfiAla J. E. 

 Smith (ex char.) the heads are borne in corymbs. In the herbarium 

 of Lamarck there is a sheet of M. Badieri labelled in the hand of 

 Lamarck himself " Eupatorium vincaefolium Lam. diet. no. 39 de 

 Mr. Badier de la guadeloupe No 137." At first sight it would appear 

 that this was an authentic type of E. vincaefolium Lam. and that his 

 earlier specific name should take the place of DeCandolle's later 

 Badieri. However, Lamarck did not cite the plant of Badier in his 

 Dictionary, but on the other hand distinctly states that his E. vincae- 

 folium was founded on South American material. Indeed, most of 

 the characters are evidently drawn from Aublet's plate and description 

 of E. parvijiorum, which Lamarck reduces to a synon}'TQ of his own 

 species. Although Badier's plant of Guadeloupe possesses some hab- 

 ital similarity to the South American one, the latter lacks the broad 

 petioles and the peculiar acumination and is doubtless a distinct 

 species. Obviously, it is to the South American plant that Lamarck's 

 name E. vincaefolium was applied. 



Mikania Houstoniana, n. comb. Eupatorium Houstonianum L. 

 Spec. ii. 836 (1753). E. Houstonis L. Syst. ed. 10, 1204 (1759). 

 Efruticosum Mill. Diet. ed. 8, no. 6 (1768). Mikania Houstonis Willd. 

 Spec. iii. 1742 (1804). The rule of priority of the specific name requires 

 the restoration of the earlier adjectival form. 



Brickellia atractyloides Gray, Proc. Am. Acad. viii. 290 (1870). 

 Of this species, Coleosantkus venulosus A. Nelson, Bot. Gaz. xxxvii. 262 

 0904), is an exact synonym. 



