Description of Fig. 245. ROOTS branching tap. STEM erect, slender, herbaceous, round, hairy. LEAVES cauline, opposite, simple, sessile, exstipulate, entire, ovate-acute. INFLORESCENCE clustered, terminal, umbellate. FLOWER. CALYX; sepals 5: COROLLA; petals 5, obcordate, spreading: STAMENS 10; filaments threadlike; anthers oval, two-celled: PISTIL; ovary ovoid, consisting of five united carpels; styles short, free; stigma along the inner face of the style. Description of Fig. 246. ROOTS tuberous. STEM smooth, low, weak, slender, herbaceous, round. LEAVES cauline, opposite, a single pair, sessile, exstipulate, feather-veined, entire, lanceolate. INFLORESCENCE a loose definite raceme. FLOWER. CALYX; sepals 2, polysepalous, regular: COROLLA; petals 5, polypetalous (or slightly coherent at the short claws), spreading; stamens 5; filaments threadlike; anthers oval: PISTIL; carpels 3; style slender, three-cleft; stigma along the inner side of the three-cleft style. |