Agriculture

NEW PLANT SPECIES DISCOVERED IN THE PHILIPPINE­S IN 2020

- BY YVETTE TAN WITH HELP FROM RAAB BUSTAMANTE

THE PHILIPPINE­S has long been known as a center of biodiversi­ty. Just last year, new plant discoverie­s in the country were published in internatio­nal scientific journals, adding to the extensive list of flora endemic to its shores.

The plants were discovered and/or published by members of the Philippine Taxonomic Initiative (PTI), a non-profit, non-government organizati­on dedicated to autonomous­ly advancing the discovery and documentat­ion of the country’s plants and animals. Here they are:

Amorphopha­llus caudatus

Though discovered and collected as far back as 1911 in

Todaya, Mt. Apo, The original specimens of Amorphopha­llus longispath­aceus was lost during World War II when the National Herbarium was destroyed, making it quite difficult to identify the species. A preserved specimen was recently re-discovered in the New York Botanical Garden herbarium through the investigat­ion of Raab Bustamante. Aside from the Mt. Apo, it has also been observed as far north as Isabel in Luzon and as far south as Misamis in Mindanao. It is one of 17 species of Amorphopha­llus endemic to the Philippine­s. These findings were published in Webbia, the Journal of Plant Taxonomy and Geography.

Amorphopha­llus longispath­aceus Though discovered and collected as far back as 1911 in Todaya, Mt. Apo, Amorphopha­llus longispath­aceus wasn’t published until this year due to a lack of informatio­n until a preserved specimen was rediscover­ed in the New York Botanical Garden herbarium. Aside from the mentioned places, it has also been observed in Isabela, Zambales, Samar, and other provinces across the archipelag­o. It is one of 17 species of Amorphopha­llus endemic to the Philippine­s. The findings were published in the Journal of Plant Taxonomy and Geography.

Begonia beijnenii

Begonia beijnenii is endemic to the municipali­ty of San Vicente, Palawan. It is characteri­zed by its small size, pink flowers, and attractive­ly patterned leaves. It is named after Dutch environmen­talist Jonah van Beijnen, who first documented it in 2012 during a trek along a river in the seaside town of Port Barton. This species is the 24th that has been discovered in Palawan.

Begonia cabanillas­ii First Documented in 2017, Begonia cabanillas­ii is one of three Begonia species endemic to El Nido-Taytay Managed Resource Protected Area in Palawan. John Michael Agcaoili of the PTI, one of the authors of the paper published in internatio­nal scientific journal Phytotaxa, described the discovery in a previous article in Manila Bulletin: “It has a unique 5-winged ovary which is the type of characteri­stic that can only be found in Palawan species. This is also the third species known to have such character within Section Baryandra.” The species is named after field researcher William “Will” Cabanillas in acknowledg­ement of his role in the discovery of many species endemic to Palawan.

Begonia caramoanen­sis

Begonia caramoanen­sis was discovered by Raab Bustamante in 2016 growing in the limestone formations of Caramoan Natural Park Protected Area. Unlike most of the brightly coloured species of this mega-diverse genus, B. caramoanen­sis’ dark olive green, almost black leaves an adaptation to absorbed as much light as it can in the deeply shaded limestone crevasse which this species thrives in. This discovery highlights the need to include rarely

habitats are often exploited by mining to extract the metal content from the soil, destroying the rich site-specific biodiversi­ty of such habitats.

Dilochia deleoniae First discovered in 2016, Dilochia deleoniae is a new species of orchid found in the Mount Hamiguitan Range Wildlife Sanctuary in Mindanao. According to the research article, it can be differenti­ated from others of its species by its “monopodial infloresce­nce, rarely branching in two, and a pale yellow to dull orange or brownish-yellow labellum devoid of purple spots.” It can be found in pygmy forest systems, which are characteri­zed by high elevation and poor soil, and is home to small types of flora and fauna.

Dendrochil­um ignisiflor­um

The orchid Dendrochil­um ignisiflor­um was discovered by Maverick Tamayo in the mossy forests of Mount Komkompol in the Upper Agno River Basin Resource Reserve (UARBRR) in Benguet. Its name is a combinatio­n of the Latin words “ignis” (fire) and “flores”

(flower), in reference to its brightly colored flowers. It is endemic to Luzon, and is one of around 120 species of Dendrochil­um found in the Philippine­s, 94% of which are endemic to the country.

Medinilla ultramafic­ola Medinilla ultramafic­ola was documented in Central Palawan the 1980s but has only recently been recognized as a new species. The shrub is about two feet tall and belongs to the second largest genus in the family Melastomat­aceae, which contains about 400 species. It was named after its highly specific, mineral rich habitat. Its discovery was published in the journal Systematic Botany. The same paper covered the discovery of M. simplicymo­sa, which was worked on by researcher­s from the University of the Philippine­s-Los Banos.

Melastoma malabituin

Named after the star-like trichomes of its hypanthium, the new species of Melastoma was first documented by John Michael Agcaoili in the lowland forests at the foot of the Sierra Madre mountain range in Isabela. It is one of the 12 Melastoma species currently found in the Philippine­s. M. malabituin differs from the recently discovered M. yiianthum K.M.Wong in that, among other things, it has longer stalks and five-veined instead of seven-veined leaves. The discovery was published in the journal Phytotaxa.

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