EUPATORIUMS OF ECUADOR. 345 
sections, Praxelis and Campuloclinium, represented in Colombia, 
are as yet unrecorded in Ecuador. Of Sect. Conoclinium, wit 
chiefly endemic species in Colombia, there are but 2 species in Ecuador. 
On the other hand, Sect. H. ebeclinium, with but 4 species in Colombia, 
has no less than 6 species in the much smaller area as yet botanically 
explored in Ecuador. By far the greater part of the Ecuadorian 
Eupatoriums fall into Sect. Subimbricata and Sect. Ezximbricata. 
ese 
where 
sections are about equally represented and in Ecuador as else- 
they are quite confluent, their separation, although convenient 
and almost necessary for purposes of classification, being manifestly 
artificial. 
The 
t 
absence from Ecuador of certain species known to occur both 
in Colombia and Peru may well be due to imperfect exploration. In 
connection it is to be remembered that botanical investigation of 
the country has as yet been restricted to limited and relatively accessi- 
ble areas, but that the country as a whole presents such remarkable 
diversity j 
n altitude, temperature, precipitation, exposure, and soil- 
conditions that when more fully explored, especially when the large 
and little known Prov. Oriente has been investigated, it can scarcely 
fail to yield an exceedingly rich flora greatly extending the representa- 
ton of this as well as other large genera. 
Of s 
Lam., 
tioned 
For 
Sect. 
pecies pretty certain to be found in Ecuador E. amygdalinum 
- pauciflorum HBK., and E. macrophyllum L. may be men- 
with a fair degree of confidence. 
a key to the sections of the genus, see p. 269. 
I. Cyuinprocepnara DC. (see p. 270). 
Key To Species. 
a. Leaves ovate or lanceolate, long-acuminate or gradually nar- 
Towed to the apex. 
b. Petiole 
b. 
fi 
Owered, obtus: i 
@. Leaves ov) ese OF obtusish 
¢. 
©; heads 7-8(-10)- 
aoa, = 8(-10)-flowered, very slender, acute 
te re ee ee ee 4, 
Petiole at least one-fifth as long as the blade; heads 10-35- 
in bu 
one sixteenth to one eighth the length of the leaf- 
or 
us E. leptocephalum. 
rs Re reee ne ee 2. E. odoratum. 
val or ellipti : : 
Hind: Feiptical, merely acutish to short-acuminate c. 
In flattish or moderately convex corymbs; involucral 
¢. i i — Searcely or not at all ciliate............ 3. EF. laevigatum. 
3 e in panic 
onspicuously ciliate, not notice i 
glomerules; involucral scales . 
Wey VEN. 4. E. Eggersii. 
