Volume 6 (2012)

Table of Contents

Morphological and molecular identification of a novel species of Uvaria (Annonaceae) with potential medicinal properties

Research Paper, pages 1-14

by P.G.D. Cabuang, B.S. Exconde, V.I.M. Lim, D.K.M. Padilla, S.R. Salas, A.P.G. Macabeo, B.O.C. Lemana, And G.J.D. Alejandro

Abstract

The imperfectly known genus Uvaria (Annonaceae) comprises ca. 20 species of shrubs to small trees in the Philippines. During recent fieldwork at Valderrama, Antique, a suspected new species of Uvaria was collected. Based on morphology, this Uvaria species can be distinguished from other Philippine congeners by its large obovate-lanceolate leaves and pubescent carpels. Additional molecular characters inferred from two plastid DNA regions (matK and trnL-F) were sequenced from this Uvaria species and U. grandiflora to gain more certitude on the identity of this Uvaria species. Phylogenetic analysis using Maximum Parsimony was carried out including 48 foreign Uvaria species and other Annonaceae genera derived from GenBank. Results showed that the divergent Uvariaspecies and U. grandiflora were nested among the SE Asian Uvaria subclade, with a strong support (BS = 91%). Therefore, we propose a new species, Uvaria valderramensis sp. nov. The first phytochemical assays on the leaf extracts of U. valderramensis showed the presence of triterpenes, sterols, tannins, flavonoids, phenols and alkaloids.

Keywords: Uvaria, Annonaceae, matK, trnL-F, phytochemical assays

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Annotated list of Odonata from Mainit Hot Spring Protected Landscape, Compostela Valley, Mindanao Island, Philippines

Research Paper, pages 14-27

by Kim M. Jumawan, Milton Norman D. Medina and Reagan Joseph T. Villanueva

Abstract

Within the framework of the ‘Rapid Biodiversity Survey of Mainit Hot Spring Protected Landscape’ conducted by the Research and Development Centre of Assumption College of Nabunturan, an annotated list of Odonata was compiled, representing 41 species in 25 genera and 12 families from seven sites surveyed from December 2011 to February 2012. These records represent the baseline data for Mainit Hot Spring Protected Landscape and even for Compostela Valley Province. One species is potentially new to science; more than half of the records are forest dwelling endemics.

Keywords:Baseline data, endemic species, conservation

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Biotype of the invasive plant species Chromolaena odorata (Asteraceae: Eupatoriae) in the Zamboanga Peninsula, the Philippines

Research Paper, pages 28-42

by Lina T. Codilla, Ephrime B. Metillo

Abstract

The gross morphology of one of the world’s worst invasive plant species, Chromolaena odorata, now widespread in three provinces of the Zamboanga Peninsula, was examined and compared to the characteristics of Asian/West African (AWA), Southern African (SA), and Central and South America biotypes. C. odorata from the three provinces of Zamboanga Peninsula is very similar with the AWA and the Central and South American biotypes. Implications of this finding are discussed in the light of the species’ invasion and biocontrol in South Asia, Southeast Asia and the Philippines.

Keywords: Chromolaena odorata, biotype, Asian-West African biotype, Southern African biotype, Central and South American biotype, gross morphology, invasive plants

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The Philippine Rafflesia panchoana from Mt. Makiling, Luzon, and R. manillana from Basey, Samar, compared (Rafflesiaceae)

Research Paper, pages 43-45

by Domingo A. Madulid, Inocencio E. Buot Jr. and Esperanza Maribel Agoo

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Bacterial and yeast food preferences of cellular slime molds (Dictyostelids) isolated from Lubang Island, Occidental Mindoro, Philippines

Research Paper, pages 46-53

by Paul Richard J. Yulo & Thomas Edison E. Dela Cruz

Abstract

Cellular slime molds (dictyostelids) are single-celled, phagotropic micropredators in soil. Often, these organisms are grown in the laboratory with Escherichia coli as the food bacterium. In this study, we evaluated the feeding preferences of eight species of dictyostelids previously isolated from Lubang Island, Occidental Mindoro, Philippines. Our results showed that the isolated dictyostelids preferred gram-negative bacteria over gram-positive bacteria and yeasts. E. coli remained the food of choice by the most of the isolated cellular slime molds. Our study is the first attempt to evaluate the feeding preferences of locally isolated dictyostelids.Keywords: bacteriovores, soil micropredators, food bacteria/yeasts, feeding preferences

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Aquatic Heteroptera of the Lake Manguao catchment, Palawan and new rank of Rhagovelia kawakamii hoberlandti Hungerford & Matsuda 1961

Research Paper, pages 54-80

by Hendrik Freitag & Herbert Zettel

Abstract

Results of an inventory of the fauna of aquatic and semiaquatic true bugs (Insecta: Hemiptera) of small streams in a lake catchment of northern Palawan are presented. Twenty-one species were recorded. Taxonomic and ecological notes, distribution and collection sites are given for each identified taxon. Rhagovelia hoberlandti Hungerford & Matsuda 1961 is newly ranked as a subspecies of R. kawakamii (Matsumura 1913): Rhagovelia kawakamii hoberlandti Hungerford & Matsuda 1961, stat.n. Cercotmetus asiaticus Amyot & Serville 1843 is recorded for the first time from the Philippines. Endemic and few undescribed taxa are discussed. Additional environmental data of the sampled waters are discussed with comparative surveys in the country.Keywords: Philippines, AQUA Palawana, freshwater biodiversity, taxonomy, water bugs, Hemiptera

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Beach forest species and mangrove associates in The Philippines. Tigbauan, Iloilo: Seafdec Aquaculture Department

Book Review, pages 81-82

Primavera JH and RS Sadaba. 2012. Beach Forest Species And Mangrove Associates In The Philippines.Tigbauan, Iloilo: Seafdec Aquaculture Department. 154 pages. ISBN 978-971-9931-01-0

Reviewed by Grecebio Jonathan D. Alejandro

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Field guide to the pitcher plants of the Philippines

Book Review, pages 83-85

McPherson, S. and Amoroso, V.B. 2011. Field Guide To The Pitcher Plants Of The Philippines. Redfern Natural History Productions, Poole, Dorset, England. 62 pages. ISBN 978-0- 9558918-5. Paperback, £14.99 (signed), £12.99 (unsigned). www.redfernnaturalhistory.com

Book review by Lawrence M. Liao
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Philippine Journal of Systematic Biology ISSN 1908-6865