Materials for a Flora of the Malayan Peninsula. 85 



Perak, Sungei Siput (A. D. Machaclo). No flowers or fruits of 

 this have been seen and I am unwilling therefore to describe it as new. 

 I can find however no description of any Dioscorea with these remarkable 

 flattened thorns like those of a rose bush but much larger. 



Excluded Species. 



D. spinosa, Eoxb. in Wall. Cat. 5703. " Malay Peninsula cultivat- 

 ed." Hook. fil. Fl. Brit. Ind. VI. 291. I have never seen this here nor 

 are there any specimens from the peninsula in the Kew herbarium. 



3. STENOMERIS, Planch. 



Climbers, with ovate or ovate lanceolate cordate leaves many nerved 

 and reticulate. Cymes axillary short. Flowers small pedicelled green or 

 brown urceolate with narrow lobes. Stamens 6 filaments very short 

 adnate to the mouth of the tube. Anthers oblong, deflexed. Stylo 

 short conic clavate. Capsule elongate 3 winged, 3 valved septicidal. 

 Seeds compressed winged above. 



Species 3. Malay Islands. 



S. bomeensis, Oliv. Ic. PI. 2328. Stem i inch thick. Leaves 

 ovate lanceolate, or ovate cordate acuminate, 5 to 7 inches long 1^ to 3 

 inches wide with 5 to 10 prominent nerves. Cymes shortly peduncled 

 few flowered. Bracts linear. Flowers i inch long brown, tube dilated 

 upwards fleshy, lobes linear narrow subequal. Stamens oblong small 

 connective prolonged into a short point. Style columnar short grooved. 

 Fruit 10 inches long f -1 inch wide. Seeds compressed winged above. 



Selangor, climbing on bushes near the Caves, Kwala Lumpur, 

 (Ridley) very rare. Distrib. Borneo. 



I have only obtained a scrap of this plant, much damaged by 

 caterpillars, but it seems identical with the Borneo plant. I do not 

 find the processes of the stamens nearly as long as they are figured in 

 the Icones. 



IX. ROXBURGHIACEAE. 



Herbs with climbing or erect stems. Leaves alternate or opposite 

 petioled 3 or more nerved, with parallel cross nervules. Flowers axillary 

 unisexual or bisexual. Perianth superior or half inferior. Sepals 2. 

 Petals 2. Stamens 4 from the base of the perianth segments. Anthers 

 dorsifixed. Ovary 1 celled. Stigma subsessile. Ovules 2 or more 

 anatropous. Capsule 2 valved. Seeds oblong, testa coriaceous. Em- 

 bryo long in the axis of hard albumen. 



STEMONA, Lour. 



Root of fleshy tubers. Stem climbing, rarely erect. Loaves op- 

 posite or alternate ovate thin petioled. Flowers on axillary peduncles. 

 Perianth lobes 4 distinct. Stamens 4 linear acute coloured with a 



