384 PROCEEDINGS OF THE AMERICAN ACADEMY 



to E. jilicaule, Schultz Bip. in herbariis, — of which, not being in 

 Hemsley's work, probably no character has yet been published.* 



EuPATORiUM STRiCTUM. Caulibus (ramisve) simplicissimis 2-3- 

 pedalibus herbaceis nainute puberulis cyma corymbosa polycephala 

 terminatis ; foliis oppositis dissitis (internodio dimidio brevioribus) 

 orbiculatis subcordatis crenulatis serrulatisve (pollicaribus cum petiolo 

 lin. 2 longo) submembranaceis hirsutulo-puberulis juxta basim tri- 

 nervatis et divaricato-veuosis, venis subtus prominentibus grosse re- 

 ticulatis ; capitulis lin. 3 longis pedicellatis ; involucro campauulato 

 24-floro floribus pauUo breviore, bracteis circ. 12 linearibus obtusius- 

 culis ffiqualibus cum 1-2 brevioribus additis ; corollis albis glabris ; 

 pappo albo ; acheniis ad angulos hirtellis. — Sides of ravines under 

 pine trees, near the Cumbre, or mountain summit above Batopilas, 

 fully 8,000 feet of elevation, October, Palmer, 330. 



EuPATORiDM GRANDiDENTATUM, DC. Prodr. V. 167, and probably 

 E. Pazcuarense, HBK., a narrow-leaved form. — Among rocks and 

 bushes, 150 miles north of Batopilas, Palmer, 375. 



EuPATORiUM VENULOSUM. E. ageratoides et E. aromatici soror, 

 pariter ut videtur herbaceum, puberulum ; foliis rhombeo-ovatis vel 

 ovato-lanceolatis acuminatis (sesqui-bipollicaribus cum petiolo sub- 

 semipoUicari) basi cuneata aut vix rotundata excepta argute modice- 



* E. FiLiCAULE, Schultz Bip. in herb. Berol., Gray, &c. Caule (herbaceo'?) 

 cum ramis gracillimis patentissimis tenui-puberulis ; foliis fere glabris mem- 

 branaceis oppositis longe petiolatis deltoideis ovatisque acuminatis obtuse 

 dentatis vel denticulatis, basi truncata vel subcordata rariusve subhastata; 

 capitulis secus ramos divergentes subapliyllos thyrsoideo-racemosis ; involucri 

 10-flori bracteis paucis lineari-lanceolatis. — Mexico, coll. ^/!re7i6e?-(7, no. 1176, 

 and Orizaba, Schaffner, fide Schultz. We have it from Orizaba, coll. BiUme.k, 

 1867, no. 57G, and Cordoba, coll. Bourgeau, no. 1703. It needs to be compared 

 with E. pohjhotryum, DC. 



The following species is taken up from Seemann's collection: — 



EuPATORiuM MiCROCEPHALUM. Herbaceum (a basi?), vix puberulum ; caule 

 ultra-bipedali gracili subaequaliter folioso ; foliis omnibus alternis ovatis acutis 

 crenulato-serratis subtriplinerviis laxe venosis basi obtusa vel rotundata brevi- 

 petiolatis ; panicula composita la.xa ferrugineo-puberula ; involucro simplici 

 5-6-pliyllo 5-6 floro lineam longo, bracteis lineari-oblongis corollisque extus 

 resinoso-atomiferis ; acbeniis ad angulos parce birtellis. — " N. W. Mexico," 

 Seemann. Evidently the plant taken up by Hemsley, " Cerro de Pinal," as 

 E. incomptum, DC. ; but it is not at all tlie plant of Bourgeau (no. 3330), nor of 

 Liebmann, so referred, the heads and flowers of which are very much larger, 

 and in agreement with DeCandolle's character. 



EuPATORiuM AREOLARE, DC, and E. hreviaetum, DC, species placed next 

 each other in the Prodromus, would appear to be one and the same. Ghies- 

 breght's no. 530 has the short pappus. 



