236 “ DIADELPHIA DECANDRIA. —Plerocarpus. 
It is readily, and almost totally soluble in either water or 
spirit; the solutions are a pretty deep, but dull red, the spi- 
rituous one was rather more transparent, yet with a martial 
solution it shows considerably less astringency than the wa- 
tery solution, here it differs from Butea gum ; for the spiritu- 
ous solution of that, although seemingly less perfect than this, 
shows rather more astringency with the chalybeate proof 
than the watery solution. The solutions bear being mixed 
without decomposition. Vinegar added to them makes no im- 
mediate change; mineral acids debase their colour ; alkalies 
heighten them. In short, this substance is so exceedingly 
_ like the gum of the Buteas, that one’analysis may serve for 
both. The solutions after being kept ten days showed no signs 
of change, and the same experiments were then repeated, 
with the same success. 
Note. It is highly necessary to observe that the above 
analysis was made with the gui resin fresh from the tree, 
(how long it had adhered thereto I cannot say ;) because I 
find, that when the gum of Butea frondosa is kept one year 
or two, it is less soluble in water than in spirit, and the wa- 
tery solution grows sooner turbid ; but at the same time this 
turbid solution continues as when recent,to show with a mar- 
tial solution, more astringency than the spirituous, 
The specimen of the Gum- Kino tree in the Banksian her- 
barium, is perfectly like this, It is probable these are the 
—, or Sees east’ — 
3. P. datber datbergivides. R 
Leaves pinnate; ; leaflets about nine, alternate, ovate-lanceo- 
late, smooth. Panicle terminal. Stamens ten in two equal 
portions. aie 
Andaman red wood. ae. 
‘A native of the Andaman Islands, fa adits i in 1794, 
_ ~ young: ‘trees were sent to the Botanic garden by Colenel 
: — Kyd. These are — 1809, from wed to ely. 
