Monday, September 15, 2025

[Botany • 2025] Homalomena renda (Araceae) • A remarkable New Species from the Rainforests of Jambi, Sumatra

 

Homalomena renda A.S.D.Irsyam & M.R.Hariri, 

in Irsyam, Hariri et Setiawan, 2025.

Abstract
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.

Keywords: Araceae, Chamaecladon, Malesia, Ornamental, Sumatra

Homalomena renda.
 A. Habit; B. Adaxial and abaxialleaf surfaces; C. Cristate petiole; D. Cross section of petiole withsheath; E. Cross section of petiole showing cristae; F. Abaxial sur-face leaf showing veins cristae; G. Inflorescence; H. Cristate pedun-cle; I. Inflorescence with full and half of spathe removed artificially;J. Staminate flowers; K. Pistillate flowers with lobed ovary (yellow arrow) and staminodes (red arrow).

Homalomena renda A.S.D.Irsyam & M.R.Hariri, sp.nov. 

Etymology: The specific epithet renda is derived from the Indonesian language, where it refers to the term crista. Thisname highlights a defining characteristic of the species,emphasizing the distinct ridges or crests present on theplant.

Vernacular name. In Indonesia, this species is commonly marketedand sold under the local name Homalomena ‘Renda’.This name is widely used among plant enthusiasts, hor-ticulturists, and sellers, particularly in nurseries andplant markets. 


Arifin S.D. Irsyam, Muhammad R. Hariri and Ade A. Setiawan. 2025. Homalomena renda (Araceae), A remarkable New Species from the Rainforests of Jambi, Sumatra. WebbiaJournal of Plant Taxonomy and Geography. 80(2); 249-252. DOI: doi.org/10.36253/jopt-17435  [2025-07-18]
https://itb.ac.id/berita/penemuan-spesies-baru-homalomena-berhiaskan-renda-dan-daun-berdaging-dari-sumatera/62686