Eupatorieae novae Americanae. II. 151 
linearibus apice valde appendiculatis basi integerrimis; styli ramis cla- 
vatis planiusculis 6 mm longis atropurpureis; achaeniis linearibus 7 mm 
longis 5-angulatis in costis minute scabratis; pappi setis ca. 50 fere 1 cm 
longis, plurimis exteriorum brevioribus. 
Collected at Arequipa, Peru, by Mr. Curson. 
The sole specimen of this clearly marked species is in the herbarium 
of the British Museum of Natural History. It had evidently been in the 
herbarium of Nuttall, wo had recognized its novelty and assigned it a 
specific name under the genus Campuloclinium. Unfortunately Nuttall's 
manuscript name has already been used in Eupatorium and therefore 
cannot be now taken up. In habit and probably in its affinities E. Cur- 
soni approaches E. Balli Oliv., from which, however, it differs decidedly 
in its subaequal involucral bracts. 
29. Eupatorium gracilicaule Sch. Bip. in herb., B. L. Robinson, 1. c., 
p. 39. 
Fruticosum 3 m altum oppositirameum; ramis teretibus glaberrimis 
gracilibus, internodiis ca. 5 cm longis; foliis ovatis longe acuminatis basi 
rotundatis vel brevissime acuminatis 3-nerviis leviter serrato-dentatis plus 
minusve falcatis utrinque glabris subtus haud vel vix pallidioribus minute 
glanduloso-punctatis ad 8 cm longis 3—4 cm latis, venulis subtranslucenti- 
bus, petiolo gracili patenti 2—2,5 cm longo; paniculis magnis 2—3 dm 
diametro rotundato-corymbosis oppositirameis folioso-bracteatis multi- 
Capitulatis obscurissime puberulis vel granulosis, ramis laxe patentibus, 
pedicellis gracillimis saepe flexuosis minute bracteolatis; capitulis 6—8 mm 
altis ca. 13-floris; involucri squamis laxissime imbricatis linearibus acu- 
tissimis dorso sordide puberulis, intimis ca. 3 mm longis subaequalibus 
6—9, exterioribus paucis (2—3) brevioribus angustissimis; achaeniis 5- 
angulatis gracilibus glabris fuscis deorsum levissime angustatis; corollis 
glabris 3 mm longis verosimiliter albidis, tubo proprio gracili in fauces 
modice ampliatos gradatim expanso, dentibus limbi 5 brevibus patentibus; 
pappi setis ca. 20 tenuibus albidis aequalibus simplicissimis corollam fere 
aequantibus. 
Tlacolula, Mexico, Dec. 1839, Ehrenberg, no. 11711 (hb. Berol., 
hb. Gray). 
This species in habit somewhat suggests LE. stillingiaefolium DC. and 
E. Mendezii DC., but differs from each of them in being nearly glabrous 
and in its much less imbricated involucre, etc. 
30. Eupatorium hemipteropodium B. L. Robinson, l. c, p. 39. — E. 
quadrangulare Millsp., Field Columb. Mus. Bot., I, 324 (1896), not DC. E, 
populifolium Millsp., 1. c., not H. B. K. E. aromatisans Millsp., l. c., III, 92, 
with figs. (1904), not DC. 
Herbaceum robustum ad 3 m altum; caule meduloso subtereti valde 
striato-costato glabrato in sicco stramineo-brunnescenti; foliis oppositis 
magnis tenuibus ovatis utrinque glabris et viridibus supra levissimis longe 
petiolatis, inferioribus ovatis subacuminatis 1,8—2,5 dm longis 12—15 cm 
latis argute grosseque dentatis basi acuminatis et breviter in petiolo de- 
