Distribution and morpho-anatomical characterization of ‘Beket' (Coriaria japonica subsp. intermedia (Matsum) T. C. Huanh)in Cordillera Central Range, Northern Philippines Distribution and morpho-anatomical characterization of ‘Beket' (Coriaria japonica subsp. intermedia (Matsum) T. C. Huanh)in Cordillera Central Range, Northern Philippines

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Vol17 No.9: 2136-2147

Title】Distribution and morpho-anatomical characterization of ‘Beket' (Coriaria japonica subsp. intermedia (Matsum) T. C. Huanh)in Cordillera Central Range, Northern Philippines

Author】Maricel A. Guron1, Jones T. Napaldet1,2*

Addresses】1 Biology Department, Benguet State University, Benguet 2601, Philippines; 2 University of Philippines Los Baños, Laguna 4031, Philippines

Corresponding author】Jones T. NAPALDET

Citation】Guron MA, Napaldet JT (2020) Distribution and morpho-anatomical characterization of ‘Beket' (Coriaria japonica subsp. intermedia (Matsum) T. C. Huanh) in Cordillera Central Range, Northern Philippines. Journal of Mountain Science 17(9). https://doi.org/10.1007/s11629-020-6110-7

DOI】https://doi.org/10.1007/s11629-020-6110-7

AbstractCoriaria, the only genus under family Coriariacea, receives a lot interest among botanist due to its controversial taxonomic treatment and unique phytochemistry that could be commercially important. The populations of Coriaria japonica subsp. intermediain Cordillera Central Range (CCR), Philippines had never been studied in detail. With the need for more information on this controversial genus, the study deemed it necessary to present the distribution and morpho-anatomical description of C. japonica subsp. intermedia in CCR. A total of123 populations were documented, found at an elevation range of 1334 to 2494 masl and stretched between 16°31'37.7" to 17°5'47.8"Nand 120°39'40.3" to 120°55'48"E. Mapping these populations showed a narrow linear pattern of distribution concentrated at the southern portion of CCR. The plant is a shrub with simple leaves, collateral buds, raceme inflorescence, bisexual flowers with persistent perianth forming an accessory fruit after fertilization. In terms of anatomy, much are of the usual dicot characters such as dorsiventral leaf with stomata concentrated in the lower epidermis, eustele with pith in the stem and presence of secondary growth both on old stem and old root. Interesting findings of the study include the 123 populations, the larger leaf measurements, longer petals and larger fruits than the original description given by Matsumura. Also, the paracytic type of stomata and presence of pith in the primary roots of C.japonica subsp. intermediaare interesting since these are common monocot characters while the plant is dicot. These findings are additional information that could help clear the controversies on the genus Coriaria. More importantly, our results could provide essential information for understanding the plant and for developing conservation strategies not just for this plant but also for the other related plants in the CCR biogeographical zone.

KeywordsCoriaria japonica subsp. intermedia; Cordillera Central Range; Geographical distribution;Paracytic type;Pith in dicot root