26 PROCEEDINGS OF THE AMERICAN ACADEMY. 
having the involucre calyculate with 1 to 3 lanceolate herbaceous-tipped 
bractlets. 
e. Var. rugosa. Habit, foliage, and inflorescence of the preceding 
species: heads smaller, 5—10-flowered. — C. rugosa, Hemsl. Biol. Cent.- 
Am. Bot. ii. 206. Calydermos rugosus, DC. Prodr. v. 670. — Cuerna- 
vaca, Morelos, Berlandier, no. 1061; also in Orizaba, Bourgeau, no. 
3095; near Acapulco, Palmer, no. 52. 
Var. macrophylla. Leaves mostly much larger, 2} to 3 inches 
or more in length, half as broad, less rugose: pedicels often equalling or 
considerably exceeding the 12-flowered heads: achenes nearly 1} lines in 
length, the pappus only a third as long.— Collected by H. von Tuerckheim 
at Coban, Dept. Alta Verapaz, altitude 4,300 feet, February, 1888, and 
distributed as C. Zacatechichi in Donnell Smith’s Guatemalan sets, n0. 
1345; also by Heyde & Lux, at Laguna de Ayarza, Dept. Jalapa, 
altitude 8,000 feet, distributed in same set as C. salmeefolia, no. 3782. 
+ + Scales of the pappus narrower, more numerous, equalling or exceeding 
the achenes. 
++ Involucre cylindrical, or narrowly campanulate, rather few-flowered ; scales 
broad, scarious, glabrous or only the outermost herbaceous and somewhat 
pubescent: pedicels less than an inch in length: plants pubescent. 
= Heads numerous, radiate, with ligules evident. 
a. Inflorescences terminal, cymose-paniculate or somewhat corymbose : heads 
very numerous, small: involucre ecalyculate. 
14. C. integrifolia, Hemsl. Shrub, 4 to 8 feet high: leaves ovate- 
lanceolate, attenuate at the apex, rounded or obtusish at the short- 
petioled base, cuspidate-denticulate, varying from papillose-pubescent 
and very scabrous to smoothish and lucid, 2 to 4} inches long, a third to 
half as broad ; the veins very prominent beneath: heads 15-20-flowered : 
disk-flowers yellow; ray-flowers 5, white, destitute of pappus. — Biol. 
Centr.-Am. Bot. ii. 205. Allocarpus integrifolius, DC. Prodr. v- 676. | 
— Originally collected in Mexico without more exact locality by Rat 3 
winski ; later in Mirador by Sartorius, by Liebmann, no. 418, and eee 
E. W. Nelson, no. 86 ; Chiapas, Ghiesbreght, no. 565 ; Cordova, Bourget 
no. 1751, and A. Gray; near Orizaba, altitude 4,000 feet, Pringle, oT : 
5915, and EZ. W. Nelson, no. 2; Oaxaca, on the Sierra de San Felipé, 
altitude 8,000 feet, Pringle, no. 6111; Cieneguilla, LZ. C. Smith, no. 8815 
between Panixtlahuaca and Jaquila, altitude 1,000 to 5,000 feet, W. 
Nelson, no. 2389; City of Mexico, Mrs. D. H. Sheldon ; Guatemala, at 
, Dept. Alta Verapaz, altitude 4,300 feet, von Tuerckheim (0. 379 
of Dounell Smith’s sets); Guarda Viejo, Dept. of Guatemala, altitude 
