ABSTRACT:

In 1920 C. B. K van Alderwerelt van Rosenberg, an authority on Malaysian aroids and ferns, described Lasia concinna from material cultivated in the botanic garden at Bogor. In 1982 I received from Josef Bogner (Munchen Botanic Garden) a photograph of this plant, and in August 1987 I had the opportunity to see it for myself (Fig. 1). There is no doubt that it is distinct from L. sponosa, and indeed from any other member of the Lasieae.