COMPOSIT 2, 113 
Trexas.—NortH Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & 
Palmer, 371), between Vittoria and Tula (Berlandier, 2186); Sourm Mexico, Oaxaca 
(Andrieux, 271), near Morelia, 8000 feet (Galeotti, 2416), Santa Fé (Bourgeau, 515). 
Hb. Kew. 
4. Grindelia lamberti, G. Don in Loud. Hort. Brit. p. 350; DC. Prodr. v. 
p- 316. 
Mexico. 
5. Grindelia subdecurrens, DC. Prodr. v. p. 315. 
South Mexico, around Villalpando (Mendez). 
36. PENTACH ETA. 
Pentacheta, Nutt. in Trans. Am. Phil. Soc. vii. p. 386; Benth. et Hook. Gen. Plant. ii. p. 251. 
Two small herbaceous species, one Californian and one Mexican. 
1. Pentacheta gracilis, Benth. in Hook. Ic. Pl. t. 1101. 
South Mexico, near Juquila, Zacatepec, 4000 to 6500 feet (Galeotti, 2057). 
37. HETEROTHECA. 
Heterotheca, Cass. in Bull. Philom. 1817; Benth. et Hook. Gen. Plant. 11. p. 251. 
About six herbaceous species, confined to North America, including Mexico. 
1. Heterotheca chrysopsidis, DC. Prodr. v. p. 317. 
Nort Mexico, around Saltillo (Berlandier, 1368), region of San Luis Potosi, 6000 
to 8000 feet (Parry & Palmer, 373). Hb. Kew. 
2. Heterotheca inuloides, Cass. Dict. li. p. 460, ex DC. Prodr. v. p. 317. 
Diplocoma villosa, Don in Sweet’s Brit. Fl. Gard. i. t. 246. 
Doronicum mexicanum, Cerv. in Link et Otto, Abbild. t. 22. 
Nort Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 372); 
-SoutH Mexico, valley of Mexico (Bourgeau, 138; Schaffner, 249), Aguas Calientes 
(Hartweg, 109), Chinantla (Liebmann), Orizaba (Sallé). Hb. Kew. 
3. Heterotheca leptoglossa, DC. Prodr. v. p. 317. 
South Mexico, Leon, west of Guanajuato (Mendez). 
This is probably the same as H. chrysopsidis, as the ray-achenes of the latter are some- 
times bald and sometimes pappose. 
. CHRYSOPSIS. 
Chrysopsis, Nutt. Gen. Plant. N. Am. ii. P. 150; Benth. et Hook. Gen. Plant. ii. p. 252, 
Hectorea, DC. Prodr. v. p. 95. 
Heyfeldera, Schz. Bip. in Flora, 1853, p. 35. 
BIOL. CENT.-AMER., Bot. Vol. II., June 1881. q 
