Table 1 in Morphological and anatomical evidence support a new wild cassava: Manihot fallax (Crotonoideae, Euphorbiaceae), from Mato Grosso, Brazil

Table 1. Morphological characters useful in separating M. fallax from M. attenuata.
CharacterM. fallaxM. attenuataLeaves8-14 × 1-2 cm, lanceolate, narrowly elliptic or linear, adaxial surface dark green, abaxial surface glaucous17.5-24 × 4-4.5 cm, widely elliptic, ovate-lanceolate, oblong-elliptic or sometimes lanceolate, adaxial surface dark purple or greenish purple, abaxial surface glaucous or cinereousArrangement of secondary veins in relation to the midveinPerpendicularDiagonalStipulesMargin entire, early caducous 2.9-3 mm longMargin serrulate, persistent, 10-11 mm longInflorescenceRacemes subspicate, 2.5-6 cm longRacemes with well developed pedicels, 4.5-10.5 cm longBracts on flowers of both sexesGlabrous, widely ovate with entire marginPubescent, widely elliptic with denticulate marginLobes of staminate calyxTriangular with apex acuminateOvate-oblong with apex obtuse or roundedStaminate budsObovoidOvoidFilamentsPubescentGlabrousPistillate bracts5-9 mm long, margin entire6.4-7 mm long, margin irregularly serratePistillate bracteolesLanceolate, margin entireOblong-elliptic, margin denticulatePistillate calyxDialisepalousGamosepalousCaruncle shapeTriangular with bilobed apexWidely triangular with entire apex