CACTACEA. 527 
969. Mamillaria wildiana, Otto ex Pfeiff. Enum. p. 37. 
Mexico, collected on the Rio Grande at an altitude of 5000 to 5500 feet on lava and 
basalt, and here and there on trees of Prosopis and Acacia (Ehrenberg). Hort. Kew. 
This is probably the Rio Grande in the State of Oaxaca. 
970. Mamillaria winklerii, Férst. in Otto & Dietr. Allg. Gartz. xv. p. 50. 
Mexico. Hort. Kew. 
271. Mamillaria woburnensis, Scheer in Hook. Lond. Journ. Bot. iv. p. 136. 
GUATEMALA. 
972. Mamillaria wrightii, Engelm. Cact. U.S. et Mex. Bound. Surv. p. 7, 
t. 8. figg. 1-8; Engelm. et Bigel. Pacif. Railr. Rep. Cact. p. 27. 
Tuxas.—Norta Mexico, Santa-Rita-del-Cobre Mountains, near Lake Santa Maria, 
Chihuahua (Wright & Bigelow). 
973. Mamillaria xanthotricha, Scheidw. in Otto & Dietr. Allg. Gartz. viii. 
p. 3838; Walp. Rep. ii. p. 298. 
Sourn Mexico, Oaxaca (ex Ehrenberg). 
974. Mamillaria zephyranthoides, Scheidw. in Otto & Dietr. Allg. Gartz. 
ix. p. 41; Pfeiff. et Otto, Abbild. ii. t. 8. 
Mamillaria fennelii, Hopfer in Otto & Dietr. Allg. Gartz. xi. p. 3. 
Souta Mexico, Oaxaca, between 7000 and 8000 feet (Galeotti, Ehrenberg). 
975. Mamillaria zepnickii, Ehrb. in Bot. Zeit. ii. p. 835. 
MExIco. 
976. Mamillaria zuccariniana, Mart. in Act. Nov. Nat. Cur. xvi. pars 1, 
p. 331, t. 20. 
Mamillaria macracantha, DC. Mém. Cact. t. 9. 
Mexico, Ismiquilpan (Karwinskt). 
The following are described without names in Seemann’s ‘Botany of the Voyage 
of the “ Herald” ’:— 
Mawmillaria, sp. (aff. I. parvimamme), Scheer in Seem. Bot. Voy. ‘ Herald,’ p. 287. 
Norra Mexico, Chihuahua (Potts). 
Mawmillaria, sp. (aff. 1. simili), Scheer in Seem. Bot. Voy. ‘ Herald,’ p. 287. 
Norta Mexico, Chihuahua (Potts). 
Mawmillaria, sp. (aff. 1. nivose), Scheer in Seem. Bot. Voy. ‘ Herald,’ p. 287. 
Norra Mexico, Chihuahua (Potts). 
Mamillaria, sp., Scheer in Seem. Bot. Voy. ‘Herald,’ p. 287. 
Norra Mexico, Chihuahua (Potts, 235). 
