Abstract
Analysis of the pericarp structure in the four genera of the palm subtribe Dypsidinae reveals tissues similar to those in other taxa within the pseudomonomerous Indo-Pacific arecoid palms, but generally in unspecialized configurations consistent with their presumed basal position within this group. Unique tissues within some members of genus Dypsis include thin-walled, tannin-filled fibers around the vascular bundles. Large-fruited members of the presumably related genera Lemurophoenix, Masoala, and Marojejya show more distinctive arrangements of protective tissues and are quite different from one another. Only Marojejya appears to be closely related to Dypsis. Lemurophoenix and Masoala, by possession of both unsheathed vascular bundles and bundles with heavy fibrous sheaths, show possible affinities with genera well-removed from Dypsis.
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Literature Cited
Asmussen, C. B. & M. W. Chase. 2001. Coding and noncoding plastid DNA in palm systematics. American Journal of Botany 88: 1103–1117.
Dransfield J. & H. Beentje. 1995. Palms of Madagascar. Royal Botanic Gardens, Kew and International Palm Society.
———, N. W. Uhl., C. B. Asmussen, W. J. Baker, M. M. Harley & C. E. Lewis. 2005. A new phylogenetic classification of the palm family, Arecaceae. Kew Bulletin 60: 559–569.
Essig, F. B. 1977. A systematic histological study of palm fruits. I. The Ptychosperma alliance. Systematic Botany 2: 151–168.
———. 1999. Trends of specialization in the palm pericarp, pp. 73–77. In: Evolution, variation and classification of palms, ed. A. Henderson & F. Borchsenius, New York Botanical Garden, NY.
———. 2002. A systematic histological study of palm fruits. VI. Subtribe Linospadicinae (Arecaceae). Brittonia 54: 196–201.
——— & B. E. Young. 1979. A systematic histological study of palm fruits. II. The Areca alliance. Systematic Botany 4: 16–28.
——— & N. Hernandez. 2002. A systematic histological study of palm fruits. V. Subtribe Archontophoenicinae (Arecaceae). Brittonia 54: 65–71.
——— & L. Litten. 2004. A systematic histological analysis of palm fruits. VII. The Cyrtostachidinae (Arecaceae). Brittonia 56: 375–379.
———, T. J. Manka & L. Bussard. 1999. A systematic histological study of palm fruits. III. Subtribe Iguanurinae. Brittonia 51: 307–325.
———, L. Bussard & N. Hernandez. 2001. A systematic histological study of palm fruits. IV. Subtribe Oncospermatinae (Arecaceae). Brittonia 53: 466–471.
Hahn, W. J. 2002a. A phylogenetic analysis of the arecoid line of palms based on plastid DNA sequence. Molecular Phylogenetics and Evolution 23: 189–204.
Hahn, W. J. 2002b. A molecular phylogenetic study of the Palmae (Arecaceae) based on atpB, rbcL, and 18S nrDNA sequences. Systematic Biology 51: 92–112.
Lewis, C. E. & J. J. Doyle. 2002. A phylogenetic analysis of tribe Areceae (Arecaceae) using two low-copy nuclear genes. Plant Systematics and Evolution 236: 1–17.
Loo, A. H. B., J. Dransfield, M. W. Chase & W. J. Baker. 2006. Low-copy nuclear DNA, phylogeny and the evolution of dichogamy in the betel nut palms and their relatives (Arecinae; Arecaceae). Molecular Phylogenetics and Evolution 39: 598–618.
Norup, M., J. Dransfield, M. W. Chase, A. S. Barfod, E. S. Fernando & W. J. Baker. 2006. Homoplasious character combinations and generic delimitation: a case study from the indo-pacific arecoid palms (Arecaceae: Areceae).
Rudall, P. J., K. Abranson, J. Dransfield & W. J. Baker. 2003. Floral anatomy in Dypsis (Arecaceae–Areceae): a case of complex synorganization and stamen reduction. Botanical Journal of the Linnaean Society 143: 115–133.
Uhl, N. W. & J. Dransfield. 1987. Genera Palmarum: a classification of palms based on the work of Harold E. Moore, Jr. Allen, Lawrence, Kansas.
Acknowledgments
I am grateful to the herbarium of the Royal Botanic Gardens at Kew, and in particular Dr. Bill Baker, for supplying most of the preserved fruit material for this study. Some additional material was obtained from the herbarium of the L. H. Bailey Hortorium at Cornell University. I thank also Dr. John Dransfield of Kew and Natalie Uhl, in addition to Bill Baker, for encouragement to undertake this study in the first place, and for ongoing encouragement and recognition of the importance of anatomical data in palm systematics. Finally, I thank two anonymous reviewers.
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Essig, F.B. A systematic histological study of palm fruits. VIII. Subtribe Dypsidinae (Arecaceae). Brittonia 60, 82–92 (2008). https://doi.org/10.1007/s12228-008-9013-4
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DOI: https://doi.org/10.1007/s12228-008-9013-4