=A. a. Peacockii= (Peacock's). This is a rare variety.
=A. africana= (African). _fl._, perianth yellow, fifteen to eighteen lines long; racemes dense, 1ft. in length, 3in. in diameter; peduncle very strong, branched. _l._ in a dense rosette, ensiform, 1-1/2ft. to 2ft. long, 2-1/2in. to 3in. broad, slowly narrowing from base to the apex, channelled above the middle, where it is four to five lines thick; marginal prickles close, one and a half to two lines long. Stem simple, when fully grown, 20ft.
=A. albispina= (white-spined).* _fl._, perianth red, 1-1/2in. long; raceme dense, nearly 1ft. long, 4in. broad; lower pedicels fifteen to eighteen lines long; peduncles simple, 1-1/2ft. _l._ loosely disposed, lanceolate, ascending, 6in. to 8in. long, 2in. broad, green, without spots or lines; face concave upwards; middle three to four lines thick; back sparingly tubercled; marginal prickles white, horny, two lines long. Stem simple, short, 1in. to 1-1/2in. in diameter. 1796.
=A. albocincta= (white-banded).* _fl._, perianth brilliant red, ten to twelve lines long; racemes twenty or more, shortly capitate, 2in. to 2-1/2in. in diameter when expanded; pedicels ascending, six to nine lines long; scape stout, branched, 1-1/2ft. to 2ft. _l._ twelve to twenty in a dense rosette, outer ones recurved, lanceolate, 1-1/2ft. to 2ft. long, 4in. to 6in. broad, glaucous, obscurely lined and spotted; middle three to four lines thick; margin red or white tinted. Stems in old specimens, 1ft. to 2ft. long, 3in. to 4in. in diameter. SYNS. _A. Hanburyana_, _A. paniculata_, and _A. striata_.
=A. arborescens= (tree-like).* _fl._, perianth red, fifteen to eighteen lines long; raceme dense, about 1ft.; pedicels ascending, twelve to fifteen lines long; peduncles strong, 1-1/2ft., simple or branched. _l._ (rosette 3ft. to 4ft. in diameter) dense, aggregate, ensiform, 1-1/2ft. to 2ft.; base 2in. broad, thence to apex attenuated, acuminated, green, rather glaucous, without spots or lines; middle three to four lines long; base five to six lines thick; upper surface beyond the base channelled; marginal prickles close, one and a half to two lines long, horny. Stem simple, finally 10ft. to 12ft. long, 2in. to 3in. in diameter. 1700.