468 OROBANCHACE#. 
1. APHYLLON. 
Aphyllon, Mitch. in Act. Phys.-Med. Acad. Nat. Cur. viii. p. 221; Benth. et Hook. Gen. Plant. ii. 
p. 983. 
Hight or nine species in North America, and one in South America. 
1. Aphyllon fasciculatum, Torr. & Gr. in Gray’s Manual, ed. 1, p. 281; Torr. 
Bot. U.S. & Mex. Bound. Surv. p. 110; Synop. Fl. N. Am. ii. p. 312. 
Orobanche fasciculata, Nutt. Gen. N. Am. Pl. ii. p. 59; Hook. Fl. Bor.-Am. u. t. 170. 
Lake MIcHIGAN to SASKATCHEWAN, southward west of the Mississippi to ARIZONA, and 
west to OREGON and CaLirornia.—NortH MExico, tributaries of the Yaqui river, Sonora 
(Thurber). 
2. Aphyllon ludovicianum, A. Gr. in Bot. Calif. i. p.585; Synop. Fl. N. Am. 
ii. p. 313. 
Phelipea ludoviciana, Walp. Rep. iii. p. 461; DC. Prodr. xi. p. 11. 
Orobanche ludoviciana, Nutt. Gen. N. Am. Pl. 11. p. 58. 
ILLINOIS and SASKATCHEWAN to TEXAS, and westward to CaLirornia.—NortH MExIco, 
Chihuahua (Thurber); Sourn Mexico, Zimapan (Coulter, 1329). Hb. Kew. 
3. Aphyllon multiflorum, A. Gr. in Bot. Calif. i. p. 585; Synop. Fl N. Am. ii. 
p. 313. 
Phelipea erianthera, Engelm. in Proc. Am. Acad. vil. p. 372. 
Orobanche multiflora, Nutt. Pl. Gamb. p. 179. 
Texas; New Mexico; CotoraDo; ARrizona.—NortH Mexico, Saltillo, Coahuila 
(Palmer, 995). Hb. Kew. 
4. Aphyllon, sp. n.? 
Norte Mexico, Sonora Alta (Coulter, 13530). Hb. Kew. 
2. CONOPHOLIS. 
Conopholis, Wallr. Orob. Diask. ex Endl. Gen. Pl. p. 726; Benth. et Hook. Gen. Plant. ii. p. 985. 
Monotypic. 
1. Conopholis americana, Wallr. Orob. p. 78; DC. Prodr. xi. p. 15; Endl. 
Iconogr. t. 81; A. Gr. Synop. Fl. N. Am. i. p. 313. | 
Orobanche americana, Linn. f. Suppl. p. 88. 
New Ene@uanp to Micuiean and Fioripa.—Muxico, Tlalpujahua (Graham, 303), 
between Mexico and Toluca (Andrieua, 163), Zimapan (Coulter, 1331), Jalapa (Linden, 
198), Vera Cruz to Orizaba (Miller, 647), Misteca Alta, 7000 feet (Galeotti, 972), 
Hb. Kew. 
