16 Descriptions of Malayan Plants. 



VII. RUBIACEiE. 



HELOSPORA. 

 H. FLAVESCENS.— Z2;2/2.- Trans :XIY, 127. 



Native of Sumatra. Swampy places in the thickets along 

 the shore of Pule Bissar^ Malacca. 



A small tree. Leaves opposite, short-petioled, ovate- 

 lanceolate, acuminate, very smooth, entire, from three to 

 five inches long. Stipules interpetiolar, deciduous, acute ; a 

 line of ciliary hairs within them. Peduncles axillary, solitary, 

 one-flowered, shorter than the leaves. Bracts two, small, at 

 the base of the ovary. Calyx superior, erect, four-toothed, 

 persistent. Corolla yellow, tube much longer than the calyx ; 

 mouth naked; limb four-parted, spreading; segments oblong. 

 Estivation valvate. Stamens four, within the tube ; filaments 

 scarce any ; anthers linear, obtuse, flattened, two-celled. 

 Ovary subglobose, four-lobed, crowned by a nectarial ring 

 or disk, polysporous, not divided into cells, but having the 

 ovula implanted in its substance and arranged in double lines 

 in the form of a cross. Style composed of four connate 

 threads, which diverge at top, somewhat longer than the 

 tube. Stigmas four. Berry globose, with four rounded 

 angles and furrowed between, crowned with the calyx, many- 

 seeded. Seeds long, linear, inserted perpendicularly, and 

 cruciately arranged in four double lines corresponding to 

 the angles or lobes of the fruit. 



Obs. — The disposition of the seeds in this genus is very 

 peculiar, and forms a good distinctive character. 



RONDELETIA. 

 Pentandria Monogynia, 

 R. CORYMBOSA. (W, J,) 

 Tetrandra, pedunculis plerumque terminalibus dichotome 

 corymbosis, floribus unilateralibus, foliis obovato-lanceolatis. 

 Native of Pulo Pinang. 



