Journal
FLORA
Volume 230, Issue -, Pages 39-46Publisher
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.flora.2017.03.001
Keywords
Indonesia; Malaysia; Southeast Asia; Perigone tube; Species complex; Taxonomy
Categories
Funding
- Fulbright U.S. Scholar Grant
- Kusumowardoyo Foundation
- Astri
- Sequoia
- Magnolia
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Ramentae are hair-like structures found on the perigone tube and diaphragm in species of Rafflesia (Rafflesiaceae). Although ramenta morphology provides an important taxonomic character, a consistent terminology has not been used in species descriptions. As such, morphological comparisons among species as well as among populations within a species are difficult. We used a variety of resources to document the morphology including the location and density of ramenta among 18 species of Rafflesia and between populations and/or sexes of two species. We identified five types of ramenta: tuberculate, filiform, swollen apex, toadstool, and fence-like and recognized several variations within each type. Ramenta types characterize four species complexes: R. patma (tuberculate), R. arnoldii (filiform), R. pricei( mostly swollen apex), and R. hasseltii (mostly toadstool). Our classification of ramenta offers a tool for using consistent terminology to re-evaluate previously described species and to define new species of Rafflesia. (C) 2017 Elsevier GmbH. All rights reserved.
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