154 B. L. Robinson: Eupatorieae novae Americanae. Il. 
ex involucro longe exsertis ca. 4 mm longis glabris, tubo proprio gracili 
in fauces cylindricos subaequilongos leviter ampliato, dentibus limbi bre- 
vissimis suberectis; achaeniis (immaturis) fuscis obscure granulatis quam 
corollae multo brevioribus; pappi setis albis rectis ca. 20 sursum sca- 
briusculis corollam aequantibus. 
In clayey soil on the crest of the Sierra Madre in Michoacan or 
“Guerrero, alt. 2300 m, 16 February, 1899, Langlassé, no. 880 (hb. Gray). 
This species is clearly related to E. tubiflorum Benth. and E. areolare 
DC., but may be readily distinguished by its peculiar globular axillary 
inflorescences and by the fact that the pappus is fully as long as the 
corolla. 
35. Eupatorium purpureum L. var. Bruneri (Gray) B. L. Robinson, 1. c., 
p. 44. — E. Bruneri Gray, Syn. F1, I, pt. 2, 96 (1884); Coult., Man. Rocky 
Mt. Reg. 142 (1885). E. atromontanum Nelson, Bot. Gaz, XXXI, 400 
(June, 1901). E. Rydbergi Britton, Man., 921 (Oct. 1901). 
Foliis oblongo-lanceolatis ternis vel quaternis vel quinis serratis 
firmiusculis subtus plus minusve cinerascenti-puberulis vel tomentellis 
albescente reticulato-venulosis; corymbis planiusculis vel modice convexis. 
Dr. Gray’s original characterization of E. Bruneri was drawn from a 
very poor specimen and is so misleading that it is by no means sur- 
prising that it has never been rightly understood. The leaves are not 
opposite, as described, but are in whorls of three. In pubescence, 
venation, toothing, and texture, they correspond accurately with the widely 
distributed western form of E. purpureum, which as stated above has 
received two subsequent specific names. The form, although fairly well 
marked in its extreme, appears to pass by easy transitions into the 
typical form of E. purpureum and would therefore seem best treated as 
a variety. In range it extends from Iowa to British Columbia and south- 
ward in the Rocky Mountains to New Mexico. 
36. Eupatorium rapunculoides B. L. Robinson, |. c., p. 45. — Stevia 
rapunculoides DC., Prod., V, 124 (1836). Eupatorium dasucarpum Gray, Proc. 
Am. Acad., XXII, 420 (1887); Robinson, ibid., XXXVI, 478 (1901). 
37. Eupatorium sagittatum Gray var. deltophyllum B.L. Robinson, l. c., p. 15. 
Fruticosum oppositirameum habitu capitulis involueri squamis formae 
typicae simile; foliis multo latioribus deltoideis 3—4 cm longis 2—4,4! em 
latis apice et angulis inferioribus transverse divaricatis acutis. 
Near Culiacan, Sinaloa, Mexico, coll. Schaffner (type in hb. Gray). 
38. Mikania Houstoniana B. L. Robinson, l c, p. 47. — Eupatorium 
Houstonianum L., Spec., Il, 836 (1753). E. Houstonis L., Syst, ed. 10, 
1204 (1759). E. fruticosum Mill, Dict, ed. 8, no. 6 (1768). Mikania 
Houstonis Willd., Spec., III, 1742 (1804). 
The rule of priority of the specific name requires the restoration of 
the earlier adjectival form. 
_39. Brickellia paniculata B. L. Robinson, l. c. p. 48. — Eupatorium 
paniculatum Mill., Gard. Dict., ed. 8, no. 15 (1768). E. Verae-Crucis Steud., 
