TABLE 2. Morphological comparison between Rafflesia banaoana and R in The reinstatement of Rafflesia banaoana (Rafflesiaceae), and implications for assessing species diversity and conservation requirements of the world's largest flowers

TABLE 2. Morphological comparison between Rafflesia banaoana and R. leonardi.
TraitsR. banaoanaR. leonardiBracts5 imbricate whorls3 imbricate whorlsFlower diameter(27–)30–47(–50) cm(25.5)28–34Perigone tube wall geometrySlanted at a shallow angle (50◦)Slanted at a shallow angle Oblique (70◦)DiskConspicuously domed; shiny and leathery; rim extended horizontally, margin hispidulousScarcely dome; matte, with a waxy bloom; rim not extended, margin glabrousProcessesAlways present, conspicuous, (13)19–26, 5–15 mm; densely arranged at the center; tips with tufts of brown hairsAbsent, or if present inconspicuous, 10-15, up to 5 mm; borne in irregular rings; tips glabrousDisk undersurface of male flowerReddish-orange, with bristles about 1–3 mm long; lamella 5 mm long from the neck marginPale cream, with inconspicuous bristle and minute brown dots; lamella 3–3.5 mm longAnthers2-2.5 mm, yellow, borne deeply immersed in contrasting brown sulci; sulci shorter3–4.5 mm, cream to pale orange, borne in sulci of similar color; sulci longerAnnulus interior of female flowerOrange in color, glabrous, with long narrow grooves (or lacuna)Pale ochre in color, hispidulous, with broad groovesAnnulus exteriorWith prominent basal ridgeLacking a basal ridgeOvary1.5 by 4 cm, lunate-triangular, acutely angled1.2 by 6 cm, narrowly-lunate, not acutely angledHostTetrastigma cf. sepulchreiTetrastigma loheriEcologyOccurs in tropical montane forests at 1100–1400 m elev.Occurs in lowland forests at 250–350 m elev.DistributionCordillera Central, Kalinga ProvinceSierra Madre Mountain Range, Cagayan and Aurora Province