470 PROCEEDINGS OF THE AMERICAN ACADEMY. 
Berlandier, no. 1018; State of Mexico, Bourgeau, no. 1238, Schaffner, 
no. 293, Pringle, nos. 3500, 3896, 9098 ; Cuernavaca, Bourgeat no. 1209. 
“~~ 2. Leaves green above, niveous-sericeous beneath. 
> 7. N. Heteropappvs, O. Kuntze, l.c. (1891) as Woccaea. Lagascea 
Heteropappus, Hemsl. Diag. Pl. Nov. 33 (1879). — Mexico, Parkinson, 
without locality ; hillsides near Morelia, Michoacan, Pringle, no. 4541, 
e. Indumentum of the stem spreading, compound, the short glandular hairs 
much exceeded by a long non-glandular villosity ; leaves ovate-oblong, attenuate, 
dull and gray-pubescent upon both surfaces, even the upper ones exceeding the 
internodes. 
8. N, tomentosa. Lagascea tomentosa, Rob. & Greenm. Proc. Am. 
Acad. xxxii. 43 (1896). — Guerrero, Mexico, between Ayusinapa and 
Petatlan, H. W. Nelson, no. 2121. . 
= = = Leaves oblong-oblanceolate, 4 to 5 times as long as broad, narrowed at the 
base to a distinct petiole. 
9. N. aneustiror1a, O. Kuntze, l. c. (1891) as Noceaea. ian 
angustifolia, DC. Prodr. v. 92 (1836).— N. W. Mexico, Seemann; 
Durango, Palmer, no. 853 (1896); Jalisco, Palmer, no. 643 (1886), 
Pringle, no. 1784. e 
bd 
++ ++ Glomerules slender-peduncled, usually raised much above the foliar leaves, 
at length subglobose, the subtending bracts mostly small and narrow. 
Jineat 
= Teeth of the gamophyllous involucre relatively long and narrow, lance-line# 
to subulate. 
a. Involucres soft-villous. 
/> 10. N. pectrrens, O. Kuntze, 1. ¢. (1891) as Noccaea. Lagasces 
Ve 
f 
o decipiens, Hemsl. Diag. Pl. Nov. 33 (1879), & Biol. Cent.-Am. Bot. il. 
140, t. 44, £, 1-4 (1881). — North Mexico in the Sierra pages 
mann, no. 2056; Southwestern Chihuahua, Palmer, no. 145 (c° ae 
1885); Sonora, at Guaymas, Palmer, no. 256 (coll. of 1887), Alam 
Palmer, no. 401 (1890), La Tinaya, Hartmann, no. 249. 
b. Involucre hirsute. 
? 11. N. glandulosa. Lagascea glandulosa, Fernald, Bot- ee oi 
534 (1895).— W. Mexico, head of Mazatlan River, W. G. Wrig’s 2° 
1305; Rosario, Sinaloa, Lamb, no. 483. 4 
= = Teeth of the involucre very short (1 to 14 mm. in length), ovate to delto! 
; lanceolate. 
a. Stem and floral branches pubescent to tomentulose. 
12. N. Liebmannii.. Lagascea Liebmannit, Sch. Bip. in Klatt, Leo- 
_ poldina, xx. 91 (1884). — Leaves soft-pubescent beneath: involucre 
