=A. potatorum= (drinkers'). _fl._ greenish yellow, 3in. long; scape 12ft. high, including the thyrsoid panicle, which is 4ft. to 5ft. long. _l._ about twenty in a dense sessile rosette, 4ft. to 5ft. broad, oblong-spathulate, 2ft. to 2-1/2ft. long, 7in. to 9in. broad above the middle, a dull glaucous green; face slightly concave; terminal spines hard, pungent, 1-1/2in. to 2in. long; side prickles deltoid-cuspidate, about 1/4in. long, with the edge slightly wavy between them. Mexico, 1830.
=A. pruinosa= (frosty).* _fl._ unknown. _l._ ten to twenty in a dense rosette, spreading, oblanceolate-oblong, 1-1/2ft. to 2ft. long, 4in. to 5in. broad above the middle, soft and fleshy in texture, pale glaucous green; terminal spine very weak; edge furnished with minute irregular spreading deltoid serrations, not more than quarter line long. Mexico, 1863. A very distinct species.
=A. Roezliana= (Roezl's). _fl._ unknown. _l._ twenty to thirty in a sessile rosette, stiff, ensiform, 6in. to 7in. long, 1in. to 1-1/2in. broad at the middle, bright glossy green, with a distinct pale band down the centre, broadly rounded on the back, without any darker green lines, margined with a continuous moderately broad border, red brown at first, fading into grey when old; terminal spines bright reddish brown, pungent, 1/2in. to 3/4in. long; side prickles copious, spreading, lanceolate, curved, 1/4in. long. Mexico, 1869.
[Illustration: ACACIA LEPROSA (LEMON). A. LINEATA (ORANGE).]
=A. Salmiana= (Prince Salm-Dyck's).* _fl._ greenish yellow, 4in. long; panicle thyrsoid, 6ft. to 8ft. long, with erecto-patent branches and flowers in dense clusters; scape, exclusive of the panicle, 20ft. high. _l._ twelve to thirty in a dense rosette, which is often 5ft. to 6ft. broad, oblanceolate-spathulate, 2ft. to 4ft. long, 4in. to 6in. broad above the middle, a dull, slightly glaucous green; face more or less concave; terminal spine 1-1/2in. to 2in. long, hard and pungent; side prickles 1/4in. long, chestnut brown, hooked up or down. Mexico, 1860. SYNS. _A. atrovirens_, _A. Jacobiana_, _A. tehuacensis_.
=A. S. latissima= (very broad). _l._ 2ft. to 3ft. long, by 8in. to 9in. broad above the middle.
=A. Sartorii= (Sartor's). _fl._ greenish, 1-1/2in. long; pedicels very short, in a dense spike about 3ft. long, 5in. to 6in. broad when expanded; scape 3ft. to 4ft. long, the green linear ascending bracts 2in. to 4in. long. _l._ thirty to forty spaced out in a loose rosette, ensiform, 1-1/2ft. to 2ft. long, 3in. broad at the middle, bright green, with a pale band down the middle; face flat; terminal spine small, not pungent; side prickles minute, crowded, spreading, tipped with red-brown. Caudex 1ft. to 2ft. long, sometimes forked. SYNS. _A. cæspitosa_, _A. Noackii_, _A. pendula_.