456 PROCEEDINGS OF THE AMERICAN ACADEMY. 
in the West Indies, and two or three extend to South America. There 
are also two species known exclusively from South America. Early in 
the nineteenth century a species of Melampodium (M. diffusum) was 
discovered on the island of Luzon in the Philippines. As the genus is 
otherwise American, the occurrence of this species in a region so remote 
has always been problematic, and it has been a matter of no small inter- 
est to find the Philippine plant closely matched by specimens recently 
collected by Dr. Edward Palmer, about Acapulco, Mexico. There cal 
therefore be scarcely a doubt that the genus is in reality of New World 
origin, and that a single Mexican species was accidentally introduced into 
the Philippines, where it attracted scientific attention before it was recog- 
nized in America. This seems the more likely from the circumstance 
that Mexico and the Philippines were under the same national control, 
and early connected by a certain amount of oceanic traffic. This being 
‘the case, the transference of seed from Acapulco, the most important 
Pacific port of Mexico, to the neighborhéod of Manila, presents 0° 
inherent improbability. The writer is under obligation to M. 
Buser of the De Candollean Herbarium for critical comparison, notes; 
and sketches relative to this and related species. 
In this paper the term fruit is applied to the ray-achene and the closely 
enveloping bract. 
EvumeLampopium, DC. Inner (fructiferous) bracts of the inv 
lucre exceeding the inclosed achene and developed at the summit into ® 
cup or hood (this obsolete i mi some forms of M. sericeum). — Prodr. ¥ = 
518 (1836). : 
* Lower surface of the leaves omcner Ae bubepaens to hirsute, villous, or tomentose 
seric 
+ South American species: hoods scarcely or not at all appendaged. 
++ Herbaceous annual: rays conspicuous, 6.5 mm. long, unguiculate. 
1. M. patupicota, Taubert in Engl. Jahrb. xxi. 455 (1 896). — 
Swamps on the Paranahyba River, Prov. Goyaz, Brazil, Ule, no- a hate 
Not seen by the writer. 
++ ++ Suffrutescent: rays very small, inconspicuous. 
2. M. surrruticostm, Baker in Mart. Fl. Bras. iv. pt. 3, 162 (1884): 
On the Esmeralda plains of the upper Orinoco in S. Venezuela. 
Species omitted from the Index Kewensis. The achenes are crow? by 
a shallow cup, otherwise the plant would be placed next M. camphor atum, 
to which according to the original description it is presumably relat 
Be a + + Species of Mexico and S, United States. — 
_~ c 4 
ss oF et coiled: heads wal (out Bas Set, er cnc heng Fania cled. 
