COMPOSIT. 257 
SourH Mexico, Cordillera of Oaxaca, 7000 to 8000 feet (Galeotti, 2097), without 
locality (Mendez), valley of Orizaba (Bourgeau, 3096; Botteri, 1137). Hb. Kew. 
15. Perezia rigida, A. Gr. Pl. Wright. i. 127. 
Acourtia rigida, DC. Prodr. vii. p. 66. 
Acourtia formosa, Hook. et Arn. Bot. Beech. Voy. p. 487, et Benth. Bot. Voy. ‘Sulphur,’ p. 122, 
non DC. nec Don, ex A. Gr. 
Trixis latifolia, Hook. et Arn. Bot. Beech. Voy. p. 300. 
Nort Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 558%) ; 
Souta Mexico, Tepic (Sinclair), Leon, west of Guanajuato (Mendez). Hb. Kew. 
16. Perezia runcinata, Lag., ex Don in Trans. Linn. Soc. xvi. p. 207; A. Gr. PL 
Fendl. p. 110. 
Clarionea runcinata, Don loc. cit.; DC. Prodr. vi. p. 62. 
Trxas.—Norta Mexico, Bishop’s Hill, Monterey (Hdwards, Gregg), Cerralbo (Gregg). 
Hb. Kew. 
17. Perezia seemannii, A. Gr. Pl. Wright. i. p. 127. 
Trixis seemannii, Schz. Bip. in Seem. Bot. Voy. ‘ Herald, p. 315. 
Acourtia seemannii, Schz. Bip. in Seem. Bot. Voy. ‘ Herald,’ t. 54. 
Nort Mexico, Sierra Madre (Seemann, 2033). Hb. Kew. 
18. Perezia thurberi, A. Gr. Pl. Thurb. p. 324; Torr. Bot. U.S. & Mex. Bound. 
Surv. p. 104. 
Nortu Mexico, Sonora (Thurber). 
19. Perezia thyrsoidea, A. Gr. in Torr. Bot. U.S. & Mex. Bound. Surv. p. 104, 
in adnot. 
Sourn Mexico, Guanajuato (Berlandier). 
20. Perezia turbinata, Llav. et Lex. Nov. Veg. Descr. i. p. 25. 
Acourtia? turbinata, DC. Prodr. vii. p. 66. 
Acourtia formosa, Don in Trans. Linn. Soe. xvi. p. 204, non DC., ex A. Gr. Pl. Wright. 1. p. 126. 
Trixis turbinata, Schz. Bip. in Seem. Bot. Voy. ‘ Herald,’ p. 315. 
Acourtia macrocephala, Schz. Bip. in Seem. Bot. Voy. ‘ Herald,’ t. 55. 
NortH Mexico, Sierra Madre (Seemann, 2034); Sour Mexico, Guanajuato (Ber- 
landier). Hb. Kew. 
21. Perezia wislizenii, A. Gr. Pl. Fendl. p. 111; Pl. Wright. i. p. 126. 
Nortu Mexico, Sierra Madre (Wislizenus). 
205. TRIXIS. 
Trixis, P. Browne, Jam. p. 312; Benth. et Hook. Gen. Plant. 11. p. 501. 
About thirty herbaceous and shrubby species, inhabiting the West Indies, Central 
and South America, southward to Chili and Buenos Ayres. 
Several of Don’s names are probably synonyms of T. frutescens. 
BIOL. CENTR.-AMER., Bot. Vol. II., December 1881. 21 
