
42 ROBINSON. 
II. A RECENSION OF THE EUPATORIUMS OF PERU. 
The literature of the Peruvian Eupatoriums is not extensive, the — 
more important records on the subject being as follows: In 1786, 
Lamarck (Encycl. ii.) described as from Peru four species of Eupo- 
torium, but of these one has since proved a Stevia and the others, collected 
by Joseph de Jussieu, came presumably from what is now 
Kunth in 1820, having worked over the collection of Humboldt & 
Bonpland, published (HBK. Noy. Gen. et Spee. iv.) descriptions of six 
species of Eupatorium from Peru, all being new to science. In 1836 
the eldest DeCandolle (Prod. v.) indicated the Peruvian occurrence of 
twenty-one species of the genus, but several of these have subsequently 
dropped into synonymy or passed to other genera such as Ophryosporus 
and Helogyne. Poeppig in 1845 (Nov. Gen. ac Spec. iii.) added to the 
group five Peruvian species. Of these, however, at least two have since 
fallen into. synonymy. In 1857, Weddell (Chlor. And. ii.) aseribed six 
species of Eupatorium to Peru, of which four were described as new, two 
of them being his own and the other two being species pro an 
never characterized by Schultz-Bipontinus. In 1876, Baker (in treating 
the genus Eupatorium for von Martius’s Flora Brasiliensis vl. P& - 
incidentally mentions eleven species as extending into Peru. In 1883, 
Oliver (in Hook. Ic, xv. t. 1462) added an interesting species 
by John Ball. Klatt (Abh. Nat. Gesellsch. Halle, xv. and Ann. Na 
Hofmus., Vienna, ix.) described two new Eupatoriums from ron 
material. Finally Hieronymus (in Engl. Bot. Jahrb. XXIX., XXXVI _ 
and Verh. Bot. Ver. Brandenburg, xlviii.), after working over yep 
chiefly of von Jelski and of Weberbauer, mentions oT discus T 
twenty-eight species and varieties of Peruvian Eupatoriums, nine “is 
of these being characterized as new. : ae 
At no time has any effort been made to catalogue the P Tn ee 
bers of this group as such or to synopsize or key them. pe place 
paper is put forth to assemble data previously scattered ek 
: . al recently WoF 
on published record several species found in matert in the 
It is hoped that the treatment, while representing merely : stage cnt 
course of work still in progress, will furnish what has age ‘ification 
before existed, namely, a means of speedy and accurate } to 
of the Peruvian Eupatoriums, besides adding some new 
the group. to the sectional, 
To save space, references are made where possible 

