Volume 1 Number 1 (2007)

Table of Contents

Pteridophyte and gymnosperm diversity in Musuan, Bukidnon

Research Paper, pages 1-14

by Victor B Amoroso


Inventory of pteridophytes and gymnosperms in Musuan, Bukidnon revealed 102 species, 52 genera and 24 families of pteridophyes and 8 species and 6 genera of gymnosperms. Of these, 10 species of pteridophytes are endemic, 8 species rare, 8 are depleted, 4 species are new records in terms of locality and 59 are economically important species. Likewise, the gymnosperms have 8 economically important species, 2 rare, and 7 introduced species. Three species of pteridophytes are locally threatened in the wild.

Keywords: inventory, species richness, non-flowering, vascular plants, Mindanao

Download PDF

Comparative study of the leaf Morphology of Epipremnum Schott and Rhaphidophora Hassk. (Araceae) in the Philippines 

Research Paper, pages 15-26

by Jasper John A Obico, Carmela Kathrina C Bagay, Amelia S Asencion, Esperanza Maribel G Agoo, Melanie M Medecilo


Leaves of 50 specimens under the genera Rhaphidophora and Epipremnum were measured and characterized using the Manual of Leaf Architecture. The leaf characters were compared and subjected to phenetic investigation using cluster analysis with the aid of a computer software, PC-ORD (ver 2.11). Generally, the leaves may be categorized into two groups based on lobation. The results of the cluster analyis support the transfer of R. korthalsii to the genusEpipremnum. Further, the leaf morphology was able to define the interspecific relationship within Rhaphidophora. However, in establishing the intergeneric relationship between Epipremnum and Rhaphidophora, the leaf morphology does not offer conclusive evidence.

Download PDF

Earthworm distribution in selected islands of the Visayan (Central Philippine) archipelago

Research Paper, pages 27-32

by Dante Granfil Flores


Nine (9) genera were identified from sixty seven (67) collection sites within ten selected islands of central Philippines distributed over thirty municipalities. Among these nine genera, seven (Pheretima, Pleionogaster, Pithemera, Amynthas, Polypheretima, Metaphire, Archipheretima), belong to family Megascolecidae and two were highly invasive exotics (Pontoscolex, Eudrilus). Genus Pheretima showed the most diversity and is widely distributed, followed by the Pleionogaster group. Pithemera and Polypheretima could have native and exotic representatives as suggested by the vegetation type from which they were collected, while Amynthas and Metaphire could be native species.

Keywords: Central Philippine Earthworms, Pheretima, Pleionogaster, Pithemera, Amynthas, Polypheretima, Metaphire, Archiperetima,Megascolecidae

Download PDF


Taxonomy of Philippine sardines revealed by biometrics data 

Research Paper, pages 33-46

by IE Samonte, MGI Sonico, KM Alvia, RA Canlas, RC Pagulayan


Philippine Journal of Systematic Biology Vol.1(1) (June 2007) 33-46

Download PDF


The current status of the Philippine Rubiaceae

Review Paper, pages 47-60

by Grecebio Jonathan D Alejandro


doi: 10.3860/pjsb.v1i1.908

Philippine Journal of Systematic Biology Vol. I, No. 1 (June 2007) p.47-60

Download PDF


Pink pigmented facultative methylotrophic bacteria: common yet unexplored locally 

Review Paper, pages 61-71

by Anthony C Lee


Philippine Journal of Systematic Biology Vol.1(1) (June 2007) 61-71

Download PDF


Status of orchid taxonomy research in the Philippines 

Review Paper, pages 73-98

by Esperanza Maribel G. Agoo


doi: 10.3860/pjsb.v1i1.907

Philippine Journal of Systematic Biology Vol. I, No. 1 (June 2007)

Download PDF


Philippine Journal of Systematic Biology ISSN 1908-6865