2 THE GESNERACEvE OF THE MALAY PENINSULA. 



GrENEKA. 



sEschynanthus, an epiphytic genus with plumed seeds easily drift- 

 ed by the wind, is the most widely diffused genus in the 

 surrounding islands. One Borneo-Siamese species occurs 

 as far south as Lankawi, several occur in Sumatra and 

 Borneo as well as the Peninisula, and the number of 

 endemic species is small compared with other genera. 



Agalmyla is a small genus of climbers, of which one species is 

 abundant in the Perak hills, and Sumatra and Java. It 

 has also plumed seeds. 



Didissandra as laid down by Mr. Clarke comprised all Didymo- 

 carpi as defined by him which had four complete stamens 

 instead of two. I have preferred to separate from 

 Didymocarpus the plants with short-tubed flower, and 

 very short stamens with a distinctly longer style. This 

 principle excludes also from Didissandra several of Mr. 

 Clarke's sections. Such plants as D. ornata of Borneo are 

 more nearly allied to Boea and Paraboea than to Didy- 

 mocarpus. Didissandra thus as far as regards the Malay 

 Peninsula includes two sections, which might almost be 

 made distinct genera: the section Cyrtandroides (Clarke) 

 tall shrubby plants with distant leaves and flowers in the 

 lower axils, two species ; and the very distinct section 

 Speciosas, with 71 species of small shrublets with crowd- 

 ed leaves and large and showy blue, white or yellow 

 flowers, a very distinct group, of which I have not seen 

 any species even from Sumatra or Borneo. In some 

 respects they approach the section Heteroboea of Didy- 

 mocarpus. and one very charming white flowered plant 

 Didymocarptt^ venustus possesses all the characteristics 

 of this group of Didissandra except that it has but two 

 stamens. 



Didymocarpus even excluding the genera Loxocarpns and Paraboea 

 contains a considerable variety of forms but it is very 

 difficult at present to split the genus further. It includes 

 all the long tubed plants with two filiform stamens and 

 a simple stigma. Among the aberrant forms we find D. 



Jour. Straits Bra ich 



