WESTERN TROPICAL AMERICA. 113 
ramificationes parve, Capitula subsessilia, ovoidea, 3 lin, longa, squamellis in pedicello brevi paucis parvis 
suffulta. Squamee striate, puberule, margine presertim interiores subscariose, omnes acutee vel preesertim 
intermedize obtusiusculz, exteriores brevissimee, interiores flores subeequantes. Corolle tenues in faucem paullo 
ampliate. Stylus basi leviter bulbosus, at glaber nec ut in Brickelliis pilosus, rami elongati, obtusi, non clavati. 
Acheenia (immatura) ad angulos ciliata, 
417. Eurpatorium Neeanum, DC. Prod. v. 5. p- 160.—San Blas and Tepic. 
418. Evparortum Schiedeanum, DC. Prod. v. 5. p- 159.—E. multinervium, Benth. Pl. Hartw. 
p. 76.—Species valde variabilis cui etiam verosimiliter referendum, E. ageratifolium, var. 8. Texense, 
Torr. et Gr. Fl. N. Amer. v. 2. p. 90.—Realejo. 
419. Evuparortum paniculatum, Schrad.—DC. Prod. v. 5. p. 167 .—Nicoya, Gulf of Fonseca. 
420. Evparorrum (Subimbricata) dissectum, sp. n., herbaceum, caule gracili dichotomo pubes- 
cente, foliis oppositis bi-tri-pinnatim sectis, segmentis parvis ovato-lanceolatis acutis incisis mem- 
branaceis, pedunculis monocephalis elongatis terminalibus vel in dichotomiis geminis, capitulis 
multifloris, involucri squamis pauciseriatis angustis acutissimis glabris.—Phunia? dissecta, Hook. et 
Arn. Bot. Beech. p. 434.—Acapulco. 
The true Phania of De Candolle, admirably figured in the 4th vol. of Deles- 
sert’s Icones, is a very different plant from the present one, partaking, perhaps, 
rather more of the character of the Senecionidee Heleniee than of the Eupatoriacee. 
I have already suggested (above, p. 21.) that the Phania urenefolia, Hook. et 
Arn., belongs probably to the new genus which I have there described as Helogyne, 
a name which had however been already taken up by Nuttall for a very different 
plant, and which must now therefore be altered, as has most probably been 
done by Endlicher, in the Fourth Supplement to his Genera now in the press. 
The present plant, referred by Hooker and Arnott with doubt to Phania, appears 
to me to have all the characters of Eupatorium, having the involucre, receptacle, 
flowers, and achenia of many of the section subimbricata. The. hairs of the 
pappus are, it is true, rather fewer and more rigid than is usual in that genus, but 
yet they are not definite in number as in Ageratum and Stevia. There are also 
several instances of dissected leaves in Eupatorium. 
421. Mrxanta Guaco, Humb. et Bonpl.—DC. Prod. v. 5. p. 193.—Isthmus of Darien. 
422. Mrxanra tamoides, DC. Prod. v. 5. p. 197 ?—Perfectly smooth, with small dense ‘corymbs, 
as described by De Candolle, but the leaves not so acuminate. It is, however, very difficult to 
ascertain the limits of the species in this group.— Central America. 
423. Mreanra gonoclada, DC. Prod. v. 5. p. 199.—Columbia. 
424, Mixanta angularis, Humb. et Kunth.—DC. Prod. v. 5. p. 202.—Tumaco. 
Nees.—DC. Prod. v. 5. p. 254.—This is the small-flowered form, 
from the Sandwich Islands, and, perhaps, 
p. 163; but it would be difficult 
425. Trieotium subulatum, 
probably the same as the one described by Lessing, 
different from the Aster divaricatus, Torr. et Gr. Fl. N. Amer. 2. 
GG 
