Chromosomal observations on Eliea (Hypericaceae), a monospecific Madagascar endemic

A meiotic chromosome number of n=9 is reported for Eliea articulata, a monospecific genus Hypericaceae endemic to Madagascar. This first report the new small tribe Cratoxlyeae which includes only one other genus, Cratoxylum. hypothetical scenario origin provided in context known numbers Cratoxylum and two tribes Hypericaceae. Given that x=12 has been proposed as basic family with n=11 n=10 also related species genera, appears have arisen descending dysploid from these higher numbers. Field photos articulata are along distribution map camera lucida drawings figures.