Oud Species

Aqualaria Species

Aquilaria is widely distributed in the Indomalesia region. The most dominant species,which has its population over several countries, is A. malaccensis . The
accepted species according to The Plant List, their distributions based on previous records, and their conservation status as classifi ed by IUCN, are compiled in Table 1.2 .
To help illustrate the distribution, an imaginary horizontal line parallel to the
equator is drawn going from across the Sumatra Island to Borneo Island, and a vertical line is drawn from the east of Taiwan going through the west of the Philippines, separating Borneo from Sulawesi and west of Sumba Island (Fig. 1.1 ). For the benefit of this discussion, these crossing lines divide the Indomalesia region into four sections and reflect the distribution of the related species in a congruent manner.
Starting with the northwest end, this first region is widely populated by
A. crassna , A. malaccensis , and A. sinensis . The distribution of A. crassna has been reported in Cambodia, south of Laos, north of Thailand, and Cochin China of Vietnam; A. malaccensis in Bangladesh, Bhutan, Assam of northeast India, Sumatra and Kalimantan of Indonesia, Iran, Malaysia, Myanmar, south of the Philippines, Singapore, and south of Thailand; and A. sinensis meanwhile endemic to China, confined mainly to the south, Hainan Island, Hong Kong, and Taiwan. Besides that, records have shown that A. baillonii is endemic to Cambodia; A. banaensis to Bana of Vietnam; A. beccariana to East Malaysia, Brunei, and Kalimantan of Indonesia; A. hirta to south of Thailand and northeast and south of Peninsular Malaysia including Singapore; A. khasiana to Khasi, Meghalaya, of northeast of India; A. rostrata to Peninsular Malaysia; A. rugosa to Kontum of Vietnam and north of Thailand; A. subintegra to south of Thailand; and A. yunnanensis to Yunnan in China. Interestingly, the Philippines, situated in the northeast, is the only country within that region having six endemic species: A. brachyantha in Cagayan, A. decemcostata in Laguna, and A. parvifolia in Camarines, all three species being concentrated in the Luzon Island, while A. apiculata in Bukidnon and A. citrinicarpa and A. urdanetensis in Mount Urdaneta, all in Mindanao, the south island. In addition, A. cumingiana
was also recorded in Mindanao, besides the Maluku Island of neighboring
Indonesia. Following the horizontal line, A. microcarpa was recorded in Johor, the most southern state in Peninsular Malaysia and in Singapore. It was also found on the Borneo Island, consisting of East Malaysia, Brunei, and Kalimantan of Indonesia

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