Chiococca

Jardim, Jomar G., Taylor, Charlotte M., Barbosa, Maria Regina & Pessoa, Maria Do Céo R., 2015, Taxonomic notes on Chiococca and Salzmannia (Rubiaceae, Chiococceae) in northeastern Brazil, with a new combination and a new species, Phytotaxa 202 (1), pp. 15-25 : 17

Key to Chiococca and Salzmannia in the Northeast Region of Brazil

1. Plants without resinous exudates or with only very small quantities of these; inflorescences lax, cymose or racemiform; corollas campanulate, funnelform, or tubular, white to yellow with lobes 5, valvate or narrowly imbricate in bud; filaments pubescent; stigma subcapitate to fusiform or bifid with linear lobes; mature fruits white or yellowish white..................................... Chiococca

1’. Plants with copious resinous exudate; inflorescences subcapitate; corollas tubular, yellow to orange, with lobes generally 4 though varying and up to 6 within a population, narrowly imbricate in bud; filaments glabrous or pubescent; stigmas bifid with lobes linear; mature fruits pink to purple.................................................................................................................................... Salzmannia