GREENMAN. — MEXICAN PLANTS. 309 



Sclerocarpus Schiedeanus, Benth. & Hook., van elongatus. 

 A slender much branched herb, 1 to LV m. high: leaves lanceolate, o to 

 12 cm. long, 5 to 12 mm. broad : ray-llowers 5 to 8. — Collected by L. C. 

 Ervendberg, at Wartenberg near Tantoyuca, Prov. Huasteca, 1858, 

 nos. 98, 99, and by C. G. Pringle, in fields around Cuernavaca, altitude 

 1,600 m., 31 October, 1896, no. 6606. A variety readily recognized by 

 its slender habit and long narrow leaves. 



Verbesixa oncopiiora, Rob. & Seaton? Specimens collected by 

 C. G. Priugle, under bluffs of barranca above Cuernavaca, altitude 2,000 m., 

 1 November, 1896, no. 6600, agree in inflorescence and floral characters 

 with this species, but differ conspicuously by having opposite or suboppo- 

 site and more remotely denticulate leaves, also by the absence of any 

 excrescences on the stems at the base of the leaves. Further material 

 may show this plant to be worthy of specific rank, but for the present at 

 least the writer prefers to regard it as a form of the above named species. 



"Verbesina stenophylla. Stems herbaceous, winged, erect from a 

 ligneous base, about 1 m. in height, essentially glabrous below, hirtellous- 

 puberulent above : leaves alternate, narrowly spatulate, 7 to 18 cm. long, 

 6 to 10 mm. broad, obtuse or acute at the apex, gradually narrowed below 

 to a sessile decurreut base, entire or inconspicuously denticulate, some- 

 what roughened on the margins, glabrous above, below glabrous or in the 

 earlier stages hirtellous, midrib prominent beneath, veins semitransparent, 

 rather strongly reticulated ; the upper leaves gradually reduced to linear- 

 attenuate bi'acts : inflorescence in a single terminal head or disposed in a 

 single cyme: heads few, about 12 mm. in diameter (including the rays 

 3 to 3^ cm. in diameter) ; involucral scales 2-3-seriate, linear, hirsute- 

 pubescent ; ligules yellowish white, about 10 in number, 10 to 12 mm. 

 long ; chaff oblong-linear, attenuate above to an acute apex, margin some- 

 what erose near the tip : achenes 6 mm. long, 4 mm. broad, strongly 

 winged with subciliated margins, and scattered hirsute pubescence on 

 either surface. — Collected by C. G. Pringle, on moist slopes above 

 Cuernavaca, altitude 2,000 m., 18 September, 1896, no. 6503. 



Ballia Pringlei. Perennial by slender rhizomes : stems branching 

 from the base : branches ascending, 25 cm. or more high, hoary pubes- 

 cent : leaves opposite or alternate, triternately compound, segments lin- 

 ear, obtuse, white hirsute-pubescent: heads 12 mm. high, nearly 2 cm. in 

 diameter, usually on long slender peduncles : involucre about 3-seriate, 

 hirsute ; scales several, oblong-linear to subobovate, the inner ones with 

 scarious margins : rays yellow, 6 to 7 ram. long, 2 mm. broad : disk- 

 flowers numerous : corolla 5 mm. or more long, externally glandular- 



