Aglaia pachyphylla

Primary tabs

Aglaia pachyphylla

Description

Tree up to 43 m, sometimes flowering at 1.8 m, with a few ascending branches which have terminal clusters of leaves forming a small, open crown. Outer bark brown, greyish-brown or greenish-grey, with large corky lenticels or with pits and regularly longitudinal fissures, the fissures narrow, deep and c. 15 cm long, the intervals flat and somewhat scaly; inner bark dark brown or pale yellowish- brown, thick, firm and finely fibrous, sapwood pinkish-brown, pale brown or pale yel- low; heartwood brown; latex white, when present. Leaves up to at least 135 cm long and 60 cm wide, imparipinnate, in spirals particularly towards the ends of the twigs where they are very close together, the petiole bases crowded together; petiole up to 30 cm, with a groove on the adaxial side, petiole, rachis and petiolules angular, with longi- tudina channels and densely covered with hairs like those on the twigs; latex white. Inflores- cence up to 45 cm long and 60 cm wide, flowers sessile on the final branches and of- ten clumped together; peduncle up to 10 cm, peduncle, rachis, and branches angular, channelled and densely covered with hairs like those on the twigs. Flowers subglo- bose, up to 2 mm in diam., sessile. Petals 5. Staminal tube subglobose, thick and fleshy, deep- ly 5-lobed; anthers 5, as long as the tube, ovoid and curved with the tube, with tufts of white stellate hairs at the apex and at the base of each locule, those at the apex filling the aperture of the tube. Fruits up to 8 cm in diameter, obovoid or sub- globose:, greyish-green when young, brown when mature, densely covered with hairs like those on the twigs, glabrescent; the pericarp 3–5 mm thick, with white latex. Seed completely surrounded by a fleshy, translucent aril.

Distribution

Asia-Tropical: Borneo present; Jawa (Jawa present); Malaya (Peninsular Malaysia present); Philippines (Philippines present); Sulawesi (Sulawesi present); Sumatera (Sumatera present); Thailand (Thailand present)
Thailand; Malesia: Sumatra, Peninsular Malaysia, Borneo, Java, Philippines, Celebes.

Taxonomy

This species resembles Aglaia grandis, but it is usually a larger tree with an open crown like that of A. rubiginosa. The hairs are shorter than in A. grandis and cover the lower side of the leaflets so densely that the surface is not or barely visible. There are usually more lateral veins on each side of the midrib than in A. grandis. The twigs, petiole, rachis and peduncle are angular and deeply channelled. When the hairs are short, it is sometimes similar in appearance to A. eximia, but it may be distinguished by the shape of the leaflet, greater number of veins and the prominence of the reticulation on the dark, shiny upper surface. When the indumentum is dark, it may resemble A. rubi- ginosa, but the flowers are pentamerous in A. pachyphylla and trimerous in A. rubigi- nosa.

Uses

The wood is hard and said to be durable; it is used for planks and temporary construction.

Citation

Pannell 1992 – In: Kew Bull., Add. Ser. 117.
Pannell 1989 – In: Tree Fl. Malaya. 213.
Koord. 1913 – In: Atlas. t. 153
Backer & Bakh. f 1965 – In: Fl. Java. p 126