532 PLANTS 



Sarawak, Sadong, Native collector 2560 Bur. Sci., Lundu, 

 E. Mjoberg, 329; without locality, Foxworthy, 348; Mount 

 Penrissen, Mjoberg 222 (type); Mount Poi, Mjoberg 151, the 

 latter with shorter inflorescences and silghtly larger flowers 

 than the type. 



This species is very similar to Begonia isoptera Dryander of 

 the Malay Peninsula, Sumatra, and Java, but its leaves are 

 larger and less inequilateral, while its capsules are distinctly 

 larger and very different in shape, being exactly truncate at the 

 top, not rounded, the outer angles slightly rounded. 



Begonia speluncae Ridl., ]\[err. Enum. Born. PL (1921^ 416. 



Bidi Caves, No. 177, the type lovality. A species known 

 only from this place. 



Begonia sp. 



Salak, No. 178, a very fragmentary specimen. 



Begonia sp. 



Mount Poi, s.n. A species entirely different from any 

 of those at present known from Borneo and probably represent- 

 ing an undescribed species. More complete material is essen- 

 tial. It is apparently a scandent species, the younger parts and 

 long petioles being supplied with scattered, slender, spreading;, 

 elongated hairs. 



MYBTACEAE . 

 RHODA:NrNiA Jack . 

 Rhodamnia cinerea Jack, Merr. Enum. Born. PI. (1921) 423. 

 Mount Poi, No. 159. Apparenth- comm^on in Borneo, 

 extending from Burma though Malaysia to tropical Australia. 



Xanthomyrtus Diels. 



XANTHOarYRTUS TAXIFOLIA (Ridl.) COUlb. UOV. 



Myrtus TAXIFOLIA Eidl. in Kew Bull. (1914) 209, Merr. Enum. 

 Born. PI. (1921) 424. 



Mount Poi. No. 179, altitude about 1700 ra. Known only 

 from this mountain; Gunong Rumput, the type locality, is one 

 of the peaks of Mount Poi. 



