108 PROCEEDINGS OF THE AMERICAN ACADEMY 



petioles of almost equal length : heads rather few, very loosely dis- 

 posed upon slender subdichotomous branches : scales of the involucre 

 lance-linear, acuminate, a little over 2 lines in length, covered with 

 fine dark glandular pubescence : corollas white, externally roughened 

 and with a pubescent limb ; tube exserted : achenes slightly rough- 

 ened, 1£ lines long; pappus lacerate coroniform ; aristae none. — 

 Dry hills near Patzcuaro, Michoacan, November, 1891 (n. 5051). 

 The same as Bourgeau's no. 3331, from Escamella, near Orizaba, 

 October, 1865. 



Eupatorium Saltivarii, Schultz Bipontinus. Rootstock hori- 

 zontal, branching : stems several, erect, purple, pubescent, glandular 

 above, 1-2 feet high, throwing out several small weak branches near 

 the base : leaves ovate, acute, coarsely serrate, abrupt at the base, 

 pubescent on both surfaces, 1—1^ inches long, more than half as broad: 

 petioles 3-4 lines in length : heads rather few, aggregated in small 

 terminal corymbs, 4 lines high, about 50-flowered : involucral scales 

 subequal in about two series, lanceolate, acute, ciliate, striate, the outer 

 glandular: corolla tubes slender, as long as the ample throat: achenes 

 slender, slightly curved, 1^ lines in length, hispidulous, callous-tipped 

 at the base. This apparently good species of Schultz Bipontinus, 

 founded upon Schaffuer's uo. 298 from the Val de Mexico, October, 

 1855, seems never to have been described. It has since been collected 

 by Bourgeau in the same place (n. 818), and by Mr. Pringle in 

 pine woods, Nevado de Toluca, State of Mexico, September, 1892 

 (n. 4286). 



Brickellia fquarrosa. Stems subsimple, 2 feet or more in 

 height, terete, covered with short dense pubescence, somewhat glandu- 

 lar roughened above, leaves opposite, oblong-lanceolate, obtusish, 

 more or less acute at the base, crenate, l]-2 inches in length, very 

 rough and somewhat rugose above, prominently reticulated, hispid on 

 the veins and black punctate on the surface below : petioles 4 lines 

 long: heads 7 lines long, about 12-flowered, in a subsimple raceme: 

 pedicels an inch long: the outer scales of the involucre shorter, her- 

 baceous, squarrose, glandular ; the inner thin, purplish-striate, acute : 

 corolla lobes minutely callous-tipped: achenes pubescent: pappus ap- 

 pressed-barbellate. — Mountains near Patzcuaro, Michoacan, Decem- 

 ber, 1891 (n. 5054). 



Sabazia subnuda. Root of many fibres from a short rootstock: 

 stems slender, erect, pubescent, almost naked, bearing one to three 

 large long-peduncled heads : radical leaves ovate-elliptical, obtuse, 

 entire, triply nerved, narrowed to a short broad petiole, ciliate, glabrous 



