Homalomena renda (Araceae), a remarkable new species from the rainforests of Jambi, Sumatra

Homalomena renda, a new species from Jambi, Sumatra, Indonesia, is most similar to H. cristata in having cristate petioles, leaf blade margins, and primary lateral veins. It is distinguished by its ovate leaf blade; cuneate to truncate base; apiculate apex; revolute margins; and spongy texture. Diagnostic features include a crista along the entire midrib, 8–14 deeply impressed lateral veins, a white lobed ovary, and a markedly shorter peduncle (1.5–4.5 mm). A morphological description, illustration, and comparative notes with H. cristata are provided.