934 THE JOURNAL OF BOTANY 
smaller heads (5-6 mm. high and Hera and shorter (3 mm. high) 
4- mie a of oval phyllaries 
tus Hemsl. Biol. ee Am. Bot. ii. 191, 6. 49 
asi), pare — the stem Sr striate, pilose with loose 
sordid hairs. Leaves ovate, acum a) rounded to slightly and 
sca 
euikas softly poste with dull -epwisdin g hairs, 6°5-13°5 cm 
ong, 2:2-5°9 cm. wide, on marginless petioles 1-1-9 cm. long, 
densely short-hispid- set with dull hairs. Heads ternately 
cymose-panicled on axillary and terminal 9-24-headed flowering- 
branches mostly shorter than the leaves. Pedicels 4-8 mm. long, 
densely short-pilose with Late i ger i hairs. Disk hemispheric, 
9-11 mm. high, 8-11 mm. wide. Involucre 5- seriate, graduated, 
6-7 mm. high, the phellasias oblong to oblong-ovate, acute to 
obtusish, indurated, pale, chartaceous-coriaceous, ciliate and + 
appressed-pilosulous, with short spreading or reflexed herbaceous 
tips, the outermost series almost entirely herbaceous, the inner- 
most without herbaceous tips, similar to but shorter than the 
pales. Disk corollas yellow, glabrous, with slender tube (1:3 m 
long) and erect sac form throat, ote mm. long. Pales mesg 
long.—Zexmenia vation (Hemsl.) O. Hoffm. in Engl. & Prantl, 
Nat. Pfl. iv. pt. 5, 230, f. 1160 1890). —Vera Cruz: Valley of 
sop March 5th, 1865-66, Bourgeau, 2030 (type: Kew). 
. O. glabratus (Coult.), n.sp. Frutescent, the stem slender, 
tanta pale, glabrous oa Spareety _— ee banhiagath in 
the inflorescence. Leaves ovate-lanceolate, long-ac ate, cuneate 
es her-vein ed, the Lato — airs of lateral veins enlarged, 
ab een, smooth, inutely strigillose, in age glabrate and 
obscurely ci A stipe scarcely paler, pilosulous along the 
veins, elsewhere glandular-dotted, ot therwise nea arly glabrous, 
7-11 ecm ong, 1 -3-1 cm. wide, on sparsely strigillose ps se 
pitistos 1-2 em. lon ng. Heads numerous in axillary and termina 
3-14-headed onder ee racemose-cymose panicles about 
2:5-5'5 em. long, 1:2-1‘8 em. wide, much exceeded by the leaves ; 
pedicels striate 5 mm. lon de to almost none. Disk 6 mm. high, 
6-8 mm. wide, turbinate-hemispheric. Involucre 3-sub-4-seriate, 
2-5-3 mm. Hee — but distinctly graduated, the phyllaries 
oval to oval-oblong, strongly indurated, coriaceous-chartaceous, 
eee striate-vittate, obscurely thickened at the obtuse to 
