[Vor. 1 
276 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
Arborescens 2-4 m. altus; caule tereti primo albo-tomentuloso 
maturitate glabrato et cortice brunneo tecto; foliis petiolatis 
basi palmatinerviis late ovatis 3-5 cm. longis latisque sinuato- 
9-ll-lobatis remote calloso-mucro-denticulatis basi cordatis 
juventate utrinque tomentulosis plus minusve glabratis supra 
in nerviis persistenter albo-tomentulosis, petiolis plerumque 
3-10 (usque ad 14 em.) longis; inflorescentiis terminalibus pani- 
eulatis multicapitatis; capitulis 10-12 mm. altis radiatis; in- 
volueris anguste campanulatis vel subcylindricis brevicalyculatis; 
involucri squamis circiter 8 lineari-lanceolatis vel oblongis ob- 
tusis 5-6 mm. longis glabris vel parce tomentulosis ; flosculis 
liguliferis plerumque 5, ligulis 5-7 mm. longis flavis 4-nervatis, 
pappi setis tubo corolle longioribus; floribus disci 8-10 ; ach- 
æniis glabris. 
Specimens examined: 
Mexico: State of Mexico, Valley of Temascaltepec, April, 1831, 
Schiede (Berlin Herb. and Gray Herb.), TYPE; open woods, 
Ixtaccihuatl, altitude 2430-3350 m., March-July, 1903, 
C. A. Purpus, 201 (Gray Herb. and Mo. Bot. Gard. Herb.). 
State of Vera Cruz, Mineral del Monte, Ehrenberg, 324 
(Berlin Herb. and Gray Herb.). State of Morelos, Sierra 
de Tres Marias, altitude 3050 m., 15 April, 1904, C. G. 
Pringle, 8903 (Gray Herb. and Mo. Bot. Gard. Herb.). 
State of Michoacan, north slope of Mt. Tancitaro, altitude 
2280-3200 m., 24 February, 1903, E. W. Nelson, 6904 
(U. S. Nat. Herb. and Gray Herb.). 
The broadly ovate, shallowly sinuate-lobed leaves with per- 
sistent white tomentum on the veins of the upper leaf-surface, 
together with a terminal many-headed panicle and yellow ray- 
flowers, render this species distinet and easily recognized among 
all those of the palmately veined section to which it belongs. 
Senecio angulifolius DC., var. ingens, var. nov. 
Habitu et foliis forme typice; inflorescentiis compactis 
pauci- vel multi-capitatis, bracteis bracteolisque perconspicuis; 
capitulis 1.5-2 em. altis 40-45-floris radiatis vel discoideis. 
Specimens examined: 
Mexico: Mt. Ixtaccihuatl, above timber line, March-July, 
1903, C. A. Purpus, 193 (Mo. Bot. Gard. Herb.), TYPE; 
rocky slopes, Mt. Ixtaccihuatl, altitude 5790-6090 m., 
