534 PROCEEDINGS OF THE AMERICAN ACADEMY. 
the Sierra Madre, near Monterey, Nuevo Leon, Pringle, nos. 2222, 
2412. Type in herb. Gray. This species is reported by Mr. J. Don- 
nell Smith (Intercont. Ry. Comm. i. pt. 2, append. 3, 12) as collected at 
Calel, Guatemala, but from the extraordinary extension of range we are 
forced to doubt the identity of the Guatemalan plant (which we have not 
seen) with the North Mexican species. 
* * Rays none. 
12. Z. piscorpEA, Gray. Stem simple, erect, 7 dm. high, canescent- 
tomentulose: leaves round-ovate, crenate-dentate, scarcely acute, pale 
green above, white-tomentose beneath, 9 cm. long, 8 cm. broad, truncate 
or subcordate at the base but cuneate at the insertion of the petiole (1 to 
1.4 em. long): heads numerous, small, in a dense almost naked terminal 
corymb. — Proc. Am. Acad. xxi. 388. — Rocky hills near Chihuahua, 
Pringle, no. 309; along road between Cerro Prieto and La Providencia, 
State of Durango, 11 September, 1898, HZ. W. Nelson, no. 4970. ly 
in herb. Gray. 
II.— SYNOPSIS OF THE GENUS VERBESINA, WITH AN 
ANALYTICAL KEY TO THE SPECIES. 
By B. L. Rosrnson and J. M. GREENMAN. 
Tue genus Verbesina has not been revised as a whole since pein 
ment in the fifth volume of the Prodromus (1836). In this wor 
DeCandolle describes 33 species with definiteness and appends 8 more 
indefinitely as “non satis note.” All but 2 of these 41 species wey 
American. DeCandolle divides the genus into three sections : , dvd 
naria with radiate heads and straight pappus-awns, Humulium wit 
radiate heads and uncinate awns, and Platypteris with discoid _ 
In 1883, Dr. Gray (Proc. Am. Acad. xix. 11-15) synopsized the No 
American, West Indian, and Mexican forms known to him, — ; 
the sections Ximenesia with loose herbaceous involucre, and Pterop . 
ton, including a part of DeCandolle’s Verbesinaria and most °s ei 
obscurely distinguished genus Actinomeris. From 1883 to 1889; fe 
Klatt (Leopoldina, xx.-xxv.) characterized many species and sought ¢ 
disentangle the synonymy. In the second volume of Hemsley’s Biolog } : 
4 
