Fig. 6. a–k in Diversity and distribution of Ludwigia (Onagraceae) in Paraíba State, Northeastern Brazil

Fig. 6. a–k. Ludwigia hyssopifolia (G.Don) Exell, A.M. Rocha 16. a. Habit. b. Flower. c. Sepal. d. Petal. e. Plain nectariferous disk. f. Epipetalous stamen. g. Episepalous stamen. h. Fruit. i. Transversal cut of the upper section of the fruit. j. Transversal cut of the lower section of the fruit. k. Seed. – l–u. L. leptocarpa (Nutt.) H.Hara, A.M. Rocha 06. l. Habit. m. Bracteoles. n. Flower. o. Sepal. p. Petal. q. Convex nectariferous disk. r. Fruit. s. Transversal cut of the fruit. t. Section of the horseshoe-shape endocarp. u. Seed. Illustrations by R.M.A. de Carvalho.