COMPOSIT.2, 227 
24. Pectis uniaristata, DC. Prodr. v. p. 99. 
MEXICO. 
179. CLAPPIA. 
Clappia, A. Gr. in Torr. Bot. U.S. & Mex. Bound. Surv. p. 93; Benth. et Hook. Gen. Plant. ii. 
p. 413. 
Herbs or undershrubs. A second species inhabits Texas. 
1. Clappia aurantiaca, Benth. in Hook. Ic. Pl. t. 1104. 
Souta Mexico, Antigua, Vera Cruz (Galeotti, 2270). 
180. HELENIUM. 
Helenium, Linn. Gen. Plant. n. 961; Benth. et Hook. Gen. Plant. ii. p. 413. 
An herbaceous genus of about twenty species inhabiting North and Central America. 
1. Helenium amphibolum, A. Gr. in Proc. Am. Acad. ix. p. 202. 7 
Norta Mexico, Chihuahua (Berlandier), Saltillo (Gregg), region of San Luis Potosi, 
6000 to 8000 feet (Parry & Palmer, 521, 523). Hb. Kew. 
2. Helenium hoopesii, A. Gr. in Proc. Acad. Philad. 1863, p. 65. 
CALIFORNIA; CoLoraDo.—NortH Mexico, Mount Graham, 8. Arizona (Rothrock). 
Hb. Kew. 
3. Helenium integrifolia, Benth. et Hook. Gen. Plant. ii. p. 414. 
Actinea integrifolia, H.B. K. Nov. Gen. et Sp. iv. p. 297, t. 410. 
Oxylepis lanata, Benth. Pl. Hartw. p. 87. 
Soutn Mexico, between Omitlan and Sierra del Jackal, 8400 feet (Humboldt & 
- Bonpland); Guatemata, Cumbre de Argueta (Hartweg). Hb. Kew. 
4, Helenium laciniatum, A. Gr. in Proc. Amer. Acad. ix. p. 203. 
Catirornia.—Norra Mexico, Yaqui River, Sonora (Palmer). 
5. Helenium mexicanum, H. B. K. Nov. Gen. et Sp. iv. p. 299. 
_  Soorn Mexico, Morelia, 6000 feet (Galeotti, 2417), Oaxaca (Andrieux, 317), Leon 
(Hartwegq) ; Costa Rica, Cartago (Girsted, 170). Hb. Kew. 
6. Helenium microcephalum, DC. Prodr. v. p. 667; A. Gr. in Proc. Am. Acad. 
ix. p. 202. - 
Helenium heterophyllum, DC. Prodr. v. p. 667. _ 
Texas.—NortH Mexico, Monterey (Berlandier, 1405). Hb. Kew. 
7. Helenium ooclinium, A. Gr. in Proc. Amer. Acad. ix. p. 202. 
Norta Mexico, Nazas valley, Bolson de Mapimi, Chihuahua (Gregqq). 
8. Helenium puberulum, DC. Prodr. v. p. 667. 
CaLirornia.—Norta Mexico, Sonora (Thurber). 
292 
