Biological Characteristics Of Aquilaria Crassna Pierre (Part 3)
Classification and characteristics of Aquilaria crassna Pierre
2.1 Classification of spices of Aquilaria crassna Pierre
Aquilaria crassna Pierre belongs:
- Class: Magnoliopsida
- Order: Myrtales
Family: Thymelaeaceae
This spieces has two genera:
- Aquilaria
- Gyrinops
2.2 Characteristics of some Aquilaria crassna Pierre
Aquilaria crassna Pierre ex Lec: this tree species grows up to 4-10m tall and has gray barks. The blade is 8-15cm long, long, thick, hair on lower surface. There are 15-18 pairs of venation. Flowers are bisexual, long and white coloured, bell shaped oral hairy. There are 10 stigmas. Capsules are 4 cm long and think, with 1-2 seeds having long side. This species is distributed in Khanh Hoa, Bao Loc, Phu Quoc areas. Tree infected by fungus for many years produce Agarwood.
Aquilaria baillonii Pierre ex Lec: This tree specie grows up to 3-10 m. Branches are small and hairy at early stage. Buds are fluffy. Blades are oval shaped, around 13-15cm long, 506.5 cm wide. Venation is thin, and hairy on either side. Stems are 5-7 mm long, soft hairy. Flowers are 1 cm long. Sepals are upright. Leaf lamina is 10, small, hairy is primary. Ovary is hairy. This species is distributed on high humid forest at the altitude of 200-900 m high humidity in Binh Tri Thien, Quang Nam and Da Nang.
Status of distribution of the species in Vietnam:
There are 19 species which potentially produce Agarwood, including:
(1)- Aquilaria grandifolia Bth., found in China.
(2)- Aquilaria Mer., found in China and Vietnam.
(3)- Aquilaria, yunnanesis S.C. Huang, found in China.
(4)- Aquilaria. Khasiana H. Haltier, found in India.
(5)- Aquilaria, baccariana Van Tiegh, found in Indonesia and Malaysia.
(6)- Aquilaria. Micarpa Bill, found in Indonesia and Malaysia.
(7)- Aquilaria. Hirta Ridl, found in Malysia, Singapore.
(8)- Aquilaria. Rostrata Ridl, found in Malaysia.
(9)- Aquilaria. Subintegra Ding Hou, found in Thailand.
(10)- Aquilaria. Malaccensis Lam, found in Thailand and Vietnam.
(11)- Aquilaria.mokowskii Grig, found in Indonesia.
(12)- Aquilaria. Cunningiana (Dene) Ridl, found in the Philippines.
(13)- Aquilaria. Filarial (Oken) Merr, Quis, found in the Philippines.
(14)- Aquilaria. Apiculata Merr, foound in the Philippines.
(15)- Aquilaria.acuminate (Merr) Quis, found in the Philippines.
(16)- Aquilaria. Crassna Pierre ex Lecomte, found in Vietnam and Cambodia.
(17)- Aquilaria. Baillonii Pierre ex Lecomte, found in Vietnam and Cambodia.
(18)- Aquilaria. Banaensis P.H.Ho, found in Vietnam.
(19)- Aquilaria. Rugosa L.C.Kiet & P.J.A Kessler, found in Vietnam and Cambodia.
Species belonging to Aquilaria crassna Pierre ex Lecomte. Names are different in different regions.
Table 1.1 The species is called under many names in each country
| Nation | Name of tree |
| China | Ch’en Hsiang |
| France | Bois d’aigle, Bois d’aloes |
| England | Agarwood or Aloes wood |
| Germany | Adlerhoiz |
| Greece | Agallochon |
| Arab | Aghaluhy |
| Malaysia | Garu |
| Cambodia | Kalampeahk chan, Crassna, KresnaKlampèoh |
| Vietnam | Cay Tram huong, Do bau, Do tram, Cay Toc… |
(source: Nguyen Hoang Nghia. (1999). Biodiversity conservation. Agriculture Publishing House 29)
In Vietnam, this species is called under many names in regions. In Phu Quoc Island, the species is divided in two species. Do nghe has yelowwish hard wood, while Do bau has soft, white colored wood.
In the central Vietnam, Aquilaria crassna Pierre is divided into four species: Do bau huong, Do me, Do day and Do bau thuong.
Besides, Aquilaria crassna Pierre is classfied into species like Do bau; Do niet; Do me; Do gach, etc…
The above classification caused difficulty in determining the scientific name of each species. There are scientific disagreements in classification and scientific names. However, the species in Vietnam is Aquilaria crassna Pierre ex Lecomte, which has been favoured by farmers and wide propagated because this species can produce the best quality Agarwood (Oud).
(Hoang Giang Agarwood collect and compile)
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