Symplocos subg. Hopea
Content
Description
Leaves usually becoming more or less yellow when drying.
Petals glabrous, or hairy in only few species, connate only at the very base, mostly expanded.
Stamens monadelphous to pentadelphous, only connate at the very base (for at most 2 mm);
Fruits 2-3(-5?)-celled, often 1-celled by abortion.
Seeds either straight or curved, and then with curved embryo.
Notes
As explained in the note under the genus, a general overall key is given to all species, as much as possible based on vegetative characters and on flowering material.
To facilitate identification additional local keys are given for the main Malesian islands or island groups, one each for flowering and for fruiting material.
In addition in fruits are drawn of all species as far as available in the dried state. They have been numbered according to the number of the taxa. The following terminology has been adopted for fruit-shapes:
It should be observed that the shape of the stone may differ from the shape of the fruit and that for instance ovoid fruits may possess an ampulliform stone.
There is no strict relation between the shape of the seed and the shape of the fruit or stone, but ampulliform fruits have always a curved seed and curved embryo and spindle-shaped and cylindrical fruits have always a straight seed and embryo.
Besides the overall-shape of the drupe, the shape of the stone can be important: sometimes it bears lower or higher ridges, which ornamentation provides good characters.
To facilitate identification additional local keys are given for the main Malesian islands or island groups, one each for flowering and for fruiting material.
In addition in fruits are drawn of all species as far as available in the dried state. They have been numbered according to the number of the taxa. The following terminology has been adopted for fruit-shapes:
| globose | 34, 41b |
| ellipsoid | 4, 19, 33e, 46 |
| ovoid | 48 |
| obovoid | 1a, 1b: . |
| ampulliform | 23, 42c, 43 |
| spindle-shaped | 38: . |
| cylindrical | 20c, 21 |
It should be observed that the shape of the stone may differ from the shape of the fruit and that for instance ovoid fruits may possess an ampulliform stone.
There is no strict relation between the shape of the seed and the shape of the fruit or stone, but ampulliform fruits have always a curved seed and curved embryo and spindle-shaped and cylindrical fruits have always a straight seed and embryo.
Besides the overall-shape of the drupe, the shape of the stone can be important: sometimes it bears lower or higher ridges, which ornamentation provides good characters.