Pg. Delprete, STUDIES IN THE PENDULOUS-FLOWERED SPECIES OF RUSTIA (RUBIACEAE, CONDAMINEEAE), INCLUDING A NEW SPECIES, RUSTIA-SCHUNKEANA, Brittonia, 48(1), 1996, pp. 29-34
During a revision of the genus Rustia, the two pendulous-flowered taxa
, R. secundiflora and R. splendens, are here lectotypified and found t
o be synonymous. Examination of specimens identified as R. secundiflor
a have revealed an additional pendulous-flowered species: R. schunkean
a. A key to the four species of Rustia with pendulous flowers is provi
ded.