ROBINSON. 



ON CERTAIN EUPATORIEAE. 193 



men upon which Dr. Watson founded his species, becoming a striking 

 feature, seems to be accompanied by no other differential character 

 and is, as shown by later collections, by no means constant. 



Trichogonia capitata (Rusby), comb. nov. Eiipatorium capitatum 

 Rusby, Bull. N. Y. Bot. Gard. iv. 380 (1907). An examination of a 

 cotj'pe of this species {Bang, no. 2114) in the Gray Herbarium shows 

 not only that it has the general habit and foliage as in Trichogonia, 

 but possesses the plumose pappus characteristic of that genus, to which 

 accordingly it should be referred. 



EuPATORiUM BETONiciFOLiUM Mill., var. integrifolium (Gray), comb, 

 nov. E. Hartwegi Benth. PL Hartw. 19 (1839). Coelestinia Hartiregi 

 (Benth.) Walp. Rep. ii. 545 (1843). ConocUnium betonicum DC., var. ? 

 integrifoUum Gray, PI. Wright, i, 88 (1852). Eiipatorium betonicum 

 (DC.) HemsL, var. subintegrum Gray, Syn. Fl. i. pt. 2, 102 (1884). 

 ConocUnium integrifolium (Gray) Small, Fl. S. E. U. S. 1170, 1338 

 (1903). Eiipatorium betonicum, var. intregrifoUum (Gray) Small, 

 11. cc. 



EuPATORiUM COELESTINUM L., var. SALINUM Griseb. Cat. PI. Cub. 146 

 (1866). This plant (Wright's no. 2811 from Cuba) though a marked 

 form is described somewhat misleadingly thus : " forma foliis acute 

 dentatis." The teeth of the leaves are in fact by no means acute, 

 being in most instances actually rounded at the tip ; but what fur- 

 nishes the really striking difference between this form and the typical 

 E. coelestinum is the fact that the leaves are considerably more deeply 

 and somewhat doubly toothed. The blades also are of a more deltoid 

 outline. 



Eupatorium frustratum, sp. nov., perenne 3-9 dm. altum a basi 

 paulo lignescenti ramosum, radice fibrosa, ramis teretibus striatis 

 viridibus patente vel crispe puberulis adscendentibus, internodiis lon- 

 giusculis folia multo superantibus ; foliis oppositis petiolatis ovatis 

 vel eis ramulorum lanceolato-ovatis) 3-nerviis crenato-serratis obtus- 

 iusculis 1.5-3.2 cm. longis 0.8-2.2 cm. latis utrinque breviter pubes- 

 centibus ; inflorescentia iterum atque iterum cymoso-furcata, axe 

 principali in capitulo quasi abortive terminante (unde nomen) ; capit- 

 ulis ovoideo-cylindricis 1 cm. longis 5 mm. diametro, involucri squamis 

 multiseriatim imbricatis arete appressis viridi-striatis apice rotundatis 

 valde deciduis, receptaculo elevato crassiusculo cylindrico 1.5 mm. alto 

 minute papillose ; flosculis caeruleis ; achaeniis olivaceis minute in 

 faciebus sursum strigillosis. — Ooclinium rigidum Chapm. Bot. Gaz. iii. 

 6 (1878), not DC. Eupatorium heteroclinium Gray, Syn. Fl. i. pt. 2, 

 95 (1884), not Griseb. Osmia heteroclina Small, Fl. S. E. U. S. 1164 

 (1903), excl. syn. — South Florida: coral soil. Lignum Vitae Key, 



VOL. XLVII. — 13 



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