44 PROCEEDINGS OF THE AMERICAN ACADEMY. 
tomentose, also somewhat glandular and villous, purplish: leaves ample, 
ovate, acuminate at the apex, acute at the petiolate base, dentate, tomen- 
tose on both surfaces, pale beneath, 3 to 5 inches long, nearly 1} to 2 
inches broad, scabrous on the margins: petioles 4 or 5 lines long, densely 
pubescent: inflorescences enveloped in ovate-lanceolate acuminate pubes- 
cent and ciliate bracts (6 to 8 lines long, 2 to 3 lines broad): involucres 
numerous, closely aggregated, villous, 3 lines in length, 1-flowered, un- 
equally dentate, glandular in lines: corolla long, 6 lines in length, exter- 
nally pubescent, the ampliate cylindrical throat exceeding the limb and 
the more slender proper tube: mature achenes not seen. — Collected by 
E. W. Nelson between Ayusina and Petatlan, Guerrero, altitude 5,000 
to 7,000 feet, 14 December, 1894, no. 2121. 
Trigonospermum tomentosum. Stout branching pubescent 
herb: stem terete, brownish or dark colored: leaves rhombic-ovate, 3- 
nerved from above the abruptly contracted then cuneately narrowed 
base, serrulate, acuminate, green and becoming scabrous above, paler 
and densely tomentose beneath, including the narrowed petiole-like base, 
4 to 8 inches long, half as broad: inflorescence a much branched corym- 
bose panicle, densely covered with short dark glandular-tipped hairs ; 
bracts subulate: heads half inch in diameter: involucral scales about 
2-seriate; the outer oblong, acutish, 3-nerved, ciliated ; the inner’ broadly 
obovate, abruptly acuminate: ray-flowers 5; ligules broad, reversed-del- 
toid, deeply 3-lobed, bright orange-yellow, 3} lines long; disk-flowers 
about 25, concolorous: chaff hyaline, obovate-cuneate to suborbicular, 
ciliated. — Collected by E. W. Nelson on the western slope of Mt. 
Zempoaltepec, Oaxaca, altitude 7,700 to 8,000 feet, 5 to 13 July, 1894, 
nos. 610, 617, and later between Panixtlahuaca and Jaquila, altitude 
1,000 feet, 26 February, 1895. 
Montanoa macrolepis. Stem, 3 to 5 feet in height, terete, fuscous, 
glabrous or somewhat pubescent: leaves opposite, sinuately 3-lobed ; ~ 
lamina 3 to 5 inches long, 2 to 3 inches broad, very scab Pee 
above, somewhat paler and sparsely pubescent or glabrate beneath, 
nerved above the base, and contracted below to a somewhat toothed ies 
which does not quite reach the stem but terminates gradually or abruptly 
(usually with two rounded auricles), leaving a short nak : 
lobes undulate-denticulate; the lateral short, broad, blunt or agat 
bilobed ; the terminal ovate, obtuse, acutish or even acuminate : 
n sub- 
heads 
rather few and large, cymose-corymbed, individually pedunculate OF — 
grouped by 2’s or 3’s at the ends of the branches: involucral scales sub- 
biseriate, oblong, obtuse or rounded at the apex, 3} lines long: TY" 
ed petiole; — 
ee ei > 
