Tripterospermum lilungshanensis (Gentianaceae), a new species in Taiwan

A new species Tripterospermum lilungshanensis C. H. Chen & J. C. Wang from Taiwan is described. Line drawing, color photos, and SEM micrographs of pollen and seed are also provided to aid in the identification. This species was found at the altitude of ca. 600-1,000 m from Mt. Lilungshan in the southern part of the Central Mountain Range. The new species is most similar to T. alutaceifolium (T. S. Liu & C. C. Kuo) J. Murata, which is mainly restricted to northern Taiwan, but differs from the latter by having shorter leaf blades (2-5 cm vs. 4-9 cm), lanceolate to ovate-lanceolate and slightly spreading calyx-lobes (vs. ensiform and straight), and an elongated gynophore which results in fruit exerting from the calyx-tube when mature.