280 PROCEEDINGS OF THE AMERICAN ACADEMY. 
and Pavon, who likewise had to deal with this “contrayerba” of South 
America in writing their Flora Peruviana Prodrom. 114 (1794), asserted 
rightly that from its characters it could not belong to the genus Milleria, 
hence they proposed a new name Vermifuga, but it was not until later 
in their Systema Vegetabilium Fl]. Peruv. et Chil. 216 (1798), that they 
added the specific name ‘‘ corymbosa.” Persoon in his Synopsis Plan- 
tarum, il. 489 (1807), referred both Milleria Contrayerba, Cav., and 
Vermifuga corymbosa, R. & P., to Flaveria Contrayerba, the name 
which has been used up to the present time. 
In the meantime, however, Gmelin in his Systema, 1549 (1796), 
reverted to Flaveria and published the specific binomials F. chilensis and 
Ff, peruviana for the two original plants of Jussieu. It is thus evident 
that /. chilensis, Gmel., is the first properly named species of Flaveria, 
and it is also clear that this was the Chilian plant of Jussieu, the “con- 
trayerba” of the Chilians. It may be said further in regard to Gmelin’s 
two names, that later writers have quite correctly called F. peruviana 
a synonym of F. Contrayerba, Pers., but that they have also with little 
reason considered F. chilensis a synonym of F. angustifolia, Pers., which 
_ was first described as a Milleria by Cavanilles in his Ic. Plant. iii. t. 223. 
This opinion seems to have been based on very slight grounds; in fact, 
merely upon the incomplete description of the form of inflorescence. 
The Chilian plant is described as having a glomerate capitate inflores- 
cence which fits F. angustifolia well, but Jussieu refers the Chilian 
plant to that of Feuille, the illustration of which agrees fairly well with 
the appearance of F. chilensis, Gmel., and is undoubtedly the “ contra- 
_ yerba.” Moreover, “ angustifolia” is typically a Mexican plant, having 
never been reported, so far as I can make out, in South America. 
To the Peruvian plant, however, Jussieu ascribes a spicate inflores- 
cence which does fairly well for some species of F. Contrayerba, Pers., or, 
using the earlier name, F. chilensis, Gmel. Thus, it seems probable 
that both of Jussien’s specimens may properly be referred to F. chilensis, 
Gmel., and that F. peruviana, Gmel., may be considered its synonym. 
Although Jussieu identified his plants with Milleria chiloensis in Hortus 
Regius Parisiensis, the first instance of a specific name under Flaveria 
is that of F. chilensis, Gmel., so that that name should take precedence 
over all others. 
Ff. chilensis, Gmel., is then the type plant of the genus, and F. 
angustifolia, Pers., is the second good species published in the group. - 
A detailed study of F. Contrayerua, Cav. (F. Contrayerba, Cav.) was 
undertaken by Sprengel in Schrad. Journ. Bot. pt. 2, 186, t. 5 (1800). 
