Echinocereus triglochidiatus ENGELMANN subsp. triglochidiatus WISLIZENUS. – Mem. Tour North. Mex.: 93 (1848) Echinocereus triglochidiatus, n. sp. ovato-cylindricus, 6-7 costatus, costis undulatis, acutis; areolis sparsis, orbicularis, junioribus albo-lanatis; aculeis 3-6, plerumque 3, rectis compressis angulatis, cinereis, sub-deflexis; noribus lateralibus, tubo pulvillis 15-20 albo-tomentosis setas spinosas apice fuscas 2-5 gerentibus stipato; sepalis interioribus sub-12 oblongolinearibus obtusis; petalis 12-15 obovatis obtusis; staminibus petala subaequantibus; stigmatibus 8-10 virescentibus. On Wolf creek, in pine woods, flowers in June; Santa Fe (Fendler) 4 to 6 inches high, 2 to 2.5 in diameter; spines in young specimens 4 to 6, in older ones generally 3, two lateral ones 8 to 14 lines long, one bent down only 6 to 8 lines long. Flowers 2 to 2.5 inches long, 2 inches in diameter; setose spines of tube 3 to 6 or T lines long; petals deep crimson, 6 to 7 lines wide; filaments and anthers red. In specimens from Santa Fe, collected by Mr. Fendler, the flowers are near 3 inches long, the petals 8 to 9 lines wide, and the setae …