180 COMPOSITA. 
7. Helianthus longeradiatus,.Bertol. Fl. Guat. p. 36; Walp. Rep. ii. p. 618. 
GUATEMALA, Volcan de Agua (Velasquez). 
8. Helianthus? mexicanus, Hemsley. 
Harpalium mexicanum, Walp. in Linnea, xiv. p. 306; Rep. ii. p. 616. 
Mexico (Karwinskt). 
9. Helianthus micranthus, Spreng. Syst. iii. p. 618; DC. Prodr. v. p. 589. 
Helianthus parviflorus, H. B.K. Nov. Gen. et Sp. iv. p. 222, t. 378. 
Souta Mexico, Santa Rosa, 8700 feet (Humboldt & Bonpland). 
10. Helianthus occidentalis, Riddell, Suppl. Cat. Ohio Pl. p. 13; Torr. & 
Gray, Fl. N. Amer. ii. p. 323. 
Oul0 to Wisconsin southward to Texas.—NortH Mexico, region of San Luis Potosi, 
6000 to 8000 feet (Parry & Palmer, 460). Hb. Kew. ' 
11. Helianthus ovatus, Lehm. Ind. Sem. Hort. Hamb. 1828, p. 16, et in 
Linnea, v. p. 376. 
MEXIco. 
12. Helianthus przecox, Engelm. & Gray, Pl. Lindheim. i. p. 13. 
Texas.—Nortu Mexico, around the city of Matamoros (Berlandier, 2354). Hb. Kew. 
13. Helianthus quinqueradiatus, Cav. Ic. iii. p. 38, t. 272; DC. Prodr. v. 
p. 090. 
MExiIco. 
14, Helianthus trilobatus, Link, Enum. Hort. Ber. ii. p. 352; DC. Prodr. v. 
p. 591. 
MEXICco. 
15. Helianthus, sp. 
Nort MExtoo, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 452). 
Hb. Kew. 
16. Helianthus, sp. 
NortH Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 453). 
Hb. Kew. 
123. PERYMENIUM. 
Perymenium, Schrad. Ind. Sem. Hort. Gott. 1830, ex DC. Prodr. v. p. 608 ; Benth. et Hook. Gen. 
Plant. ii. p. 377. 
About a dozen herbaceous and shrubby species, inhabiting America from Mexico to 
Peru. | 
1. Perymenium barclayanum, DC. Prodr. v. p. 609. 
MEXIco. 
