Mammillaria elongata var. densa (Link & Otto) Schelle, Handb. Kakteenkult.: 247. 1907
Mammillaria elongata var. densa, Handb. Kakteenkult.: 247. 1907
is new combination for Mammillaria densa, Icon. Pl. Rar.: 69. 1830
Mammillaria elongata var. densa, Handb. Kakteenkult.: 247. 1907
Taxon for this name