82 PROCEEDINGS OF THE AMERICAN ACADEMY. 
and Santa Cruz (C. Wright, no. 1127), Apache Pass (Lemmon), Foot- 
hills of Santa Rita Mts. (Pringle), Fort Huachuca (Palmer, 1890, no. 
425); Sonora, Santa Cruz and Babocomori (Thurber, no. 996), Sonoyta 
valley (Rothrock, no. 635) ; Curuuanva, San Diego (Hartman, no. 609). 
P. canescens, HBK. Stems glabrous or puberulous or more or 
rae less canescent-hirtellous, from a few centimeters to 3 dm. in length: 
leaves rather rigid, linear or linear-oblong, acute, mucronate, 1 to 23 cm. 
long, 1 to 4 mm, wide, minutely punctate, entire or pinnatifid-dentate, 
with 2 to 10 pairs of sete: peduncles terminal, slender, 1 dm. or less in 
length, 4-10-bracteate: involucre 6 to 8 mm. high, about 40-flowered ; 
the 5 to 9 lanceolate to spatulate-obovate smooth plane bracts blunt or 
rounded at the ciliate tips, usually glandless and prominently keeled 
toward the bases: rays lance-oblong, yellow, 6 or 8 mm. long: disk- 
pappus 20 to 30 unequal rufescent mostly capillary seta, a few of the 
longest somewhat stouter, 6 or 8 mm. long; ray-pappus as in the disk or 
of fewer sete (latisguama), or reduced to a few subulate squamellie 
(canescens), or auriculiform (awricularis), or entirely wanting (saturet- 
oides): akenes 6 mm. long, spreading-hirsute. — Nov. Gen. & Spec. iv. 
263, t. 393, Gray, Proc. Am. Acad. xix. 47. P. longipes, Hemsley; 
Biol. Centr.-Am. Bot. ii. 226 (as to Berlandier plant), not Gray. P. 
multiflosculosa, Hemsl. 1. c. not Schz. Bip. Inula Saturejaoides, Mill. 
Dict. ed. 8; L. saturejoides, Willd. Sp. Pl. iii. 2104; ZL Satureia, 
Spreng. Syst. iii. 520. Aster Satureje, Banks in Reliq. Houst. 8, t- 1%: 
Lorentea saturejoides, Less. Linnea, v. 135 & vi. 718; DC. Prodr. v. 102 
(satureioides). L. canescens, Less. 1. c. vi. 718; DC. 1. ¢. L. aurieu- 
laris & var. Acapulcensis, DC. 1. c. Stammarium hyssopifolium, Willd. 
in Less. Linnea, v. 135, in syn. Lorentea multiflosculosa, DC. (Prodr. 
v. 102) is probably referable here. It is not, according to Bentham and | 
Hooker f., or Klatt, the Pectis multiflosculosa, Schz. Bip. (see nen, 
under P. arenaria) ; and from De Candolle’s description and sti it 
seems very near if not quite P. canescens. A drawing, kindly furnished 
by Mr. Thiselton-Dyer, of CErsted’s Guanacaste plant (see Benth. ™ 
GErsted, Vidensk. Medd. 1852, 70) shows that plant to be a form % — 
P. canescens (latisquama). — Dry ground, mostly in the mountains, Cen- ; 
tral Mexico to Costa Rica. San Luis Poros, near Sta. Maria (Schaft- 4 
ner, no. 3870), between San Luis Potosi and Tampico (Palmer, 1878-79, : 
no. 1097); Nusvo Leon (Berlandier, no. 3159); Vera Cruz, nea — 
Vera Cruz (Houston jide Banks, 1. ¢.), Wartenberg, near Tantoy ele 
(Ervendberg, no. 63); Pursta, Tehuacan (Galeotti fide Hemsl.) i 4 
Mexico, Valley of Mexico (Schaffner, no. 85), near Santa Fé (Schiede q 
