464 ON ISONANDRA GUTTA. 
mentioned is afforded by a tree hitherto unknown to natu- 
ralists. At the time the former paper was written we had, 
as there stated, only seen immature fruit, from which and 
the habit of the plant we were disposed to refer it, though 
not without a mark of doubt to “ Bassia?” We wrote, 
however, to Dr. Oxley at Singapore, a gentleman ardently 
devoted to Natural History pursuits, for some flowering 
specimens; and by return of post he, in the most obliging 
manner, and for which we here tender him our hearty 
thanks, sent well preserved specimens, protected by a thin 
box, of which the top and bottom were made of sheets of 
the gum itself (now deposited in the Museum of the Royal 
Gardens of Kew). These flowering specimens have given us 
a more accurate knowledge of the structure of the inflores- 
cence, and we feel little hesitation in referring this plant 
to Dr. Wight’s new Genus of Sapotacee, which he has 
called Jsonandra, and of which he has published two species 
(both in our herbarium) natives of the Madras Peninsula; — 
o which De Candolle has added the Siderorylon Wightianum, 
Wall. Cat. n. 4154. (non Hook.), and the S. Perroitetiana from, — 
the Nielgherries. Our plant quite accords in habit with | 
Isonandra, and seems to differ only in the number of 
divisions and parts of the flower: fetramerous in Dr. Wight's ERU 
species, hexamerous in our plant. We propose to call me 
Gutta Percha Plant E 
Isonanpra Gutta; 
Foliis longe petiolatis obovato-oblongis coriaceis integerrimis. - 
. acuminulatis subtus aureo-nitentibus parallelo-venosis »" d 
attenuatis, floribus axillaribus fasciculatis, pedunculis un — 
foris, calycis lobis imbricatis obtusis, corollæ sili oe 
- lobis 6 ovatis patentibus, staminibus 12. PT 
Has. Mountains of Singapore, Mr. Thomas Lobb, (n- 290), | 
Dr. Ovley.—The same species is said to be found. iM — — 
other Malay islands. __ 
Borneo (on the authority of James Brooke, Esq») and. d 
(Arbor 40-pedalis, lactiflua, ramis junioribus subrufo-pubes- 
