Variation in tree form and bark among genera of tribe Schizolobieae A, B Schizolobium amazonicum Huber ex Ducke, tree to 20 m, Veracruz, Mexico (Hughes 1880) C young sapling of Schizolobium amazonicum showing typical ‘tree fern habit’ with large leaves and green bark D Peltophorum dubium (Spreng.) Taub., cultivated as an ornamental, central plaza in Saipina, Santa Cruz, Bolivia (Hughes 2461) E bark of Peltophorum africanum Sond. F Parkinsonia peruviana C.E. Hughes, Daza & Hawkins, small tree in dry thorn scrub in the upper Marañon valley, Peru (Hughes 2213) G green shoot and axillary thorns, Parkinsonia andicola (Griseb.) Varjão & Mansano, Chuquisaca, Bolivia (Hughes 2313) H green bark of Parkinsonia praecox (Ruiz & Pavon ex Hook.) Hawkins, Oaxaca, Mexico (Hughes 1298) I tree of Parkinsonia africana Sond., South Africa J, K small tree of Heteroflorum sclerocarpum M. Sousa showing typical low forked branching habit, spreading crown and pale metallic grey bark with storied protuberences, Guerrero, Mexico (Hughes 1845) L, M Conzattia multiflora Standl., showing typical umbrella crown habit and pale grey metallic bark in succulent-rich seasonally dry forest, Puebla, Mexico (Hughes 1824) N small tree of Colvillea racemosa Bojer, Madagascar (Du Puy 102) O bottle tree of Delonix floribunda (Baill.) Capuron, south-western Madagascar (Bruneau 1405) P twisted and stunted growth form of Delonix pumila Du Puy, Phillipson & R. Rabev. in south-western Madagascar (Du Puy 456) Q small tree of Delonix regia (Bojer) Raf. with a spreading crown, flowering preceding or coinciding with leaf flush, N Madagascar (Du Puy 578). Photo credits A, B, D, F, G, H, J, K, L, M CE Hughes C A Bayer Tamayo File:Tambor (Schizolobium parahyba) (14101065740).jpg - Wikimedia Commons E W Coville (https://plantnet.org/) I Wi Boshoff http://hdl.handle.net/11660/5647 N, P, Q D Du Puy O A Bruneau.