Table 2 in Ipomoea buriliae (Convolvulaceae), a new species of morning glory discovered in the Borborema Plateau, northeastern Brazil

Table 2. Comparison among Ipomoea buriliae Belo, sp. nov. (Convolvulaceae) and three morphologically similar species. CharacterIpomoea buriliae Belo, sp. nov.Ipomoea alba L.Ipomoea marcellia Meisn.Ipomoea parasitica (Kunth) G.DonStems with spiny projectionsPresentPresentAbsentPresentLeaf indumentumPubescentGlabrousVelutinous to lanateSericeousLeaf apexCaudateAcuminateAcuteAcuteOuter sepal shapeOrbicularLanceolateOvate to oblongEllipticOuter sepal apexRetuseCaudateAcuteObtuse and mucronateCorolla shape and colorCampanulate, whiteHypocrateriform, whiteFunnelform, white-yellowishFunnelform, blueColor of the abaxial mesopetal regionYellowGreenishYellowWhiteTector trichomes at the base and along the filamentsPresentAbsentAbsentAbsentPollen sizeVery large (x̄ = 110.8 × 109.6 μm)Large (x̄ = 79.2 × 78.8 μm)Large (x̄ = 92 × 91.2 μm)Very large (x̄ = 101.1 × 100.8 μm)Number of spines165 spines42 spines55 spines703 spinesExine thicknessNexine is thicker than sexineNexine is thicker than sexineSexine is thicker than nexineNexine is thicker than sexine