(201 ) 
Type: Schaffner rz7, from Orizaba, Mexico; in the Gray Her- 
barium. Other sheets are Welson 7979, from Oaxaca, Nelson 4067 
and Pringle 2943, from Jalisco. It is distinguished from V. la- 
trotdes by the larger, regularly elliptic, more prominently reticulated 
leaves with a different type of pubescence. The sheet selected for 
the type has but a few heads and leaves proportionately broader 
than those of the other specimens, but is labeled in Schultz’s hand- 
writing with the varietal name cited above. 
63. VERNONIA LIATROIDES DC. Prodr. 5: 34. 1836 
Eupatorium tulanum Klatt, Abh. Naturf. Ges. Halle 15: 324. 
Herbaceous or suffrutescent, erect; stem striate, puberulent; 
leaves ha elliptic-oblong or oblong- oblanceolate, 5-8 cm. long, 
1.5~2 cm. wide, acute or short- -acuminate, acute or cuneate at base, 
jag serrate, reseed toward the tip, scabrellate above, ferru- 
ginous-puberulent below, sessile or with petioles 1-2 mm. long; 
bracteal leaves similar but much smaller; inflorescence depressed- 
hemispheric, of rounded subumbellate cymes; i male ut 11-flow- 
ered, in — sters of 2 ie on peduncles 3-5 mm. long; involucre 
campanulate, 3-4 mm. high; scales lanceolate or ‘he inner oblon 
lanceolate, glabrous or ne arly so, regularly tapering to an ae. 
cuspidate, purple tip; achenes ribbed, prominently glandular in the 
furrows, 1.5-2 mm. long; pappus flavescent, 4mm. long, the outer 
series distinct but short. 
Type locality: ‘in Mexico inter Tula et Tampico.” 
Distribution: Tula to Tampico, Berlandier 2739; San Luis 
Potosi to Tampico, Palmer ro8r; Orizaba, Botter? 293 ; western 
Mexico, Seemann. The last cited specimen has peculiarly narrow 
leaves, pubescent beneath. 
64. VERNONIA Sinciairi Benth. Bot. Voy. Sulph. 109. 1845 
Vernonia Ehrenbergiana Sch.-Bip. Linnaea 20: 513. 1847. 
Stems herbaceous, erect, 1-2.5 m. high, cinereous-pubescent or 
glabrate with age; leaves elliptic or elliptic-oblong, 3-8 cm. long, 
1.2-4 cm. wide, acute, serrate or nearly entire, “scabrous above, 
nent above; petioles 3-5 mm. long; bracteal leaves g y reduced 
in size; inflorescence hemispheric or ee uel “heads 8-11-flow- 
ered, on subulately bracted peduncles 2-5 mm. long; involucre 
campanulate, 4-5 mm. high; scales all appressed, purple- tipped, 
nearly glabrous on the back, the outer triangular-lan nceolate, cuspi- 
date, ciliate, the inner oblong-lanceolate, obtuse, cuspidate, ‘entire ; 
