PLETHIANDRA SAHEBII. 269 



P. cuneata about 30. For P. Sahebii 28 is an almost constant 

 number. 



Stapf transfers Plethiandra to the neighbourhood of Medinilla, 

 most of the species of which grow in moss on trees in just such 

 damp forests as it inhabits, the number of stamens being equal to or 

 twice that of the petals, i.e. 4, 5, 8 or 10. The Philippine genus 

 Carionia, always placed close to Medinilla, is obviously also closely 

 allied to Plethiandra but the stamens do not exceed 12, or twice 

 the number of the petals, which are in it 6; and the flowers of 

 Carionia are much larger than those of Plethiandra. 



II. A. Soc, No. 77, 1917. 



