TROPICAL AMERICAN EUPATORIEAE 9 
14 July, 1914, by Dr. & Mrs. J. N. Rose, no. 18,708 (U. S., Gr.), 
and the other by Mr. A. S. Kahlenborn, no. 111 (Gr.). The 
latter specimen, still preserving the hitherto unstated flower-color, 
shows both the limb of the corollas and the long-exserted style- 
branches to be of a clear lilac-blue. 
E. LONGIPETIOLATUM Sch.-Bip. ex Rusby. This Andean species, 
hitherto known only from Bolivia, has recently been found in south- 
ern Ecuador by Dr. J. N. Rose and his assistants. At first sight the 
Ecuadorian plant appears identical with the Bolivian, so close is 
the correspondence of habit, pubescence, foliage, and inflorescence. 
Closer examination of the heads, however, discloses several minor 
differences amply justifying varietal distinction, thus: 
Var. g. typicum, fruticosum ramosum 2-2.5 m. altum; capitulis ca. 
16-floris ca. 8-9 mm. altis; involucri squamis apicem versus saepe paullo 
spatulato-dilatatis dorso tomentello-puberulis et glandulari-atomiferis; 
corollis saltim limbum versus purpureis vel violaceis—For lit., 
synon., and exice. see p. 66.—WesTERN Boxtvia: Dept. La Paz. 
Var. 8. arbusculare, var. nov., var. fypico multis simillimum 
differt statura majore subarborea; capitulis ca. 23-floris 10-11 mm. 
altis; involucri squamis nunquam apicem versus dilatatis- dorso non 
atomiferis; corollis ut videtur albis——Ecuapor: Prov. Loja, in the 
vicinity of Zaragura, J. N. Rose, Pachano & G. Rose, no. 23,144 (TYPE, 
Gr., U. S., N. Y.); a small tree in the vicinity of Las Juntas, where 
secured by the same collectors, no. 23,229 (Gr., N. Y., U. S.). 
There is, of course, no absolute proof as yet that these plants inter- 
grade, but it seems very probable that they do so. Their similarity 
in many points amounts to identity, and the distinguishing features, 
such as stature, number of florets, size of heads, and color of the cor- 
ollas, are all of a kind particularly likely to break down. The sta- 
mediate territory in eastern Peru and northwestern Bolivia is botani- 
cally almost unknown. _— - ; 
E. pIcHINcHENSE HBK. Nov. Gen. et Spec. iv. 122 (1820); DC. 
Prod. v. 165 (1836); Robinson, Proc. Am. Acad. liv. 317, 262 (1918). 
This species, like many other Compositae has two pretty readily 
distinguishable forms, as follows: 
Forma a. typicum, ramis pedicellisque villosis; pilis tenuibus longis 
attenuatis nullo modo capitatis sed (sub lente) pulcherrime articu- 
latis; articulis saepissime purpureis.—Mountains of Ecvapor and 
COLOMBIA. 
