共 17 条
[1]
Berger A., 1926, ENTWICKLUNGSLINIEN K
[6]
BRITTON NL, 1923, CARNEGIE I WASHI 248, V4
[7]
Buxbaum, 1951, OSTERR BOT Z, V98, P44, DOI [10.1007/BF01289304, DOI 10.1007/BF01289304]
[8]
BUXBAUM F, 1949, OSTERR BOT Z, V96, P5
[9]
BUXBAUM F, 1950, CACT SUCC J GREAT BR, V12, P76
[10]
Craig R.T., 1945, MAMMILLARIA HDB