ROBINSON AND GREENMAN. — GENUS ZINNIA. 1 
covered on dry hills of the coast at the same point by W. G. Wright, 
January, 1889, no. 1201 (distributed as Z. maritima ?); also by F. . 
Lamb on dry rocky cliffs at same place, 26 December, 1894, no. 325 
(distributed as Z maritima). In the presence of good material of all 
three species we cannot doubt the complete distinctness of this species 
from the preceding and from the following. 
§ 3. Herbs with ovate or elliptic-oblong leaves: heads strongly 
bicolorous; disk dark purple-brown, nearly black; rays oblong, bright 
yellow. 
mg 9. Z. maritima, HBK. Prostrate, much branched from the base: 
stems spreading: leaves elliptic or elliptic-oblong, obtuse at the apex, 
rather abruptly contracted to short but distinct pubescent petioles: heads 
8 to 10 lines in diameter (incl. rays), terminal, mostly borne on long 
naked peduncles: chaff narrowed above although obtusish at the 
dark-colored point; achenes of the disk-flowers strongly callous- 
margined: rays oblong, golden yellow; ray-achenes 1} to 2 lines long. 
— Nov. Gen. & Spec. iv. 251, not Gray, 1. c. — Acapulco, Humboldt & 
Bonpland ; rediscovered at the same point by Palmer, February, 1899, 
no. 628. From its peduncled heads, oblong rays, callous-margined 
achenes, ete, we cannot doubt that Dr. Palmer’s plant represents 
the real Z. maritima which came from the same locality so long ago. 
| Yet Palmer’s plant has leaves considerably larger than those described 
by Kunth. 
10. Z. Palmeri, Gray. Erect branched annual, a foot or so in 
height: leaves ovate, or lanceolate from an ovate cordate or subcordate 
closely sessile base, acute or acuminate at the apex.— Proc. Am. 
Acad. xxii. 423. — Jalisco, at Tequila, Palmer, no. 386, Pringle, no. 
oi also at Manzanillo, Palmer, no. 893, and Colima, Palmer, no. 
a. 
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| 
$ 4. Erect perennials with spreading branches and narrow linear or 
oblong leaves : rays oblong, 4 to 12 lines in length, deep orange- 
colored as well as the disk-flowers. 
J 11. Z. linearis, Benth. Much branched, 8 inches to a foot or 
‘wo in height: heads many and very showy, of intense orange color 
(persisting éven in old dried specimens) : leaves linear or nearly so. — 
Pl. Hartw. 17. — Aguas Calientes, Hartweg, no. 117; = 
Potosi, near Morales, Schaffner, no. 210, and in same state by Parry 
Palmer, no. 441 ; Jalisco, on the Rio Blanco, Palmer, no. 54, and 
on hills near Guadalajara, Pringle, no. 1778. 
VOL. xxx11.—2 
