Eupatorieae novae Americanae. II. 153. 
it has considerable similarity. It may be readily distinguished, however, 
by its much smaller leaves of an ovate or rhombic form, and by the lack 
of pubescence regularly found in E. trinervium. 
32. Eupatorium nubigenoides B. L. Robinson, 1. c., p. 42. 
Inflorescentia excepta glaberrimum; ramis lignescentibus teretibus. 
medulosis; foliis oppositis longe petiolatis tenuissimis ovati-oblongis vel 
late lanceolatis penninerviis serratis utrinque glaberrimis viridibus utroque 
acuminatis ca. 13 cm longis ca. 5 cm latis, dentibus parvis incurvis. 
tenuiter cuspidatis, petiolo obcompresso nudo ca. 5 cm longo; panicula 
oppositiramea ramosissima supra rotundata polycephala puberula vel 
tenuiter tomentella folioso-bracteata; «capitulis pedicillatis ca. 10-floris 
6 mm altis; involucri campanulato-subeylindriei squamis albescentibus. 
adpressis valde imbricatis ca. 4-seriatis multi-striatulis, exterioribus bre- 
vissimis ovatis acutiusculis ciliolatis intermediis ovato-oblongis apice 
rotundatis glabris gradatim longioribus, intimis similibus sed anguste 
oblongis obtusis; corollis albis anguste tubulosis 3 mm longis glabris sine 
faucibus ullis distinctis, dentibus limbi deltoideis brevissimis patentibus; 
achaeniis 5-angulatis 1 mm longis fuscis glabris ad basin leviter attenuatis; 
pappi subsparsi setis tenuissimis albis. 
Pansamalá, Depart. Alta Verapaz, Guatemala, June, 1886, alt. 1150 m, 
H. von Tuerckheim, no. 928 (distrib. by J. D. Smith). 
This specimen was first sent out as E. aromatisans DC. Its identi- 
fieation was then changed at the mistaken suggestion of the writer to 
E. nubigenum Benth. Compared at the Royal Gardens of Kew with Hart- 
weg's no. 587. the type of Bentham's E. nubigenum, this plant proved to 
be distinct. Æ. nubigenum has larger flowers, longer achenes, closely 
sessile heads, and strongly angled branches. 
38. Eupatorium Palmeri Gray var. tonsum Robinson, l. c., p. 43. 
Foliis ovato-lanceolatis longissime attenuatis utrinque glabris remote 
serrulatis vel integris ad 14 em longis ad 4,2 cm latis; capitulis pyramidato- 
paniculatis ca. 5-floris; involueri squamis viridibus striatis acutissimis vix 
pubescentibus; antheris apice brevissime appendiculatis. 
Mexico: El Ocote, Michoacan or Guerrero, alt. 300 m, 10 November, 
1898, Langlassé, no. 616 (hb. Gray, hb. Berol.). 
Said to be a shrub 1,5 m high with grayish flowers. 
34. Eupatorium pelotrophum B. L. Robinson, l. c., p. 44. 
Fruticosum 1,5 m altum; ramis gracilibus teretibus fuscis puberulis; 
internodiis ca. 5 cm longis; foliis oppositis petiolatis ovatis longe acumi- 
natis serratis basi rotundata et apice caudato-attenuato integerrimis a basi 
3(—5)-nerviis 7—10 em longis 2-4 cm latis firmiuseulis utrinque viridi- 
bus scabriusculis, petiolo fusco-puberulo ca. 1 cm longo; cymis axillari- 
bus glomeruliformibus oppositis ca. 12-capitulatis 2—3 cm diametro, pedi- 
cellis 1—5 mm longis teretibus sordido-tomentellis, bracteolis minimis 
fuscis; involucris subeylindrici-campanulatis saepissime 4-floris, squamis 
ca. 9 valde inaequalibus appresse imbricatis lanceolato-linearibus obtusis 
brunneis dorso pilosiuseulis, interioribus ca. 3 mm longis; corollis albis 
