xi, c, 2 Merrill: Notes on the Flora of Borneo 85 
I NTS I A Thouars 
INTSIA BAKERI Prain in Sci. Mem. Med. Off. Army Ind. 12 (1901) 13. 
Sarawak, Baram, Foxworthy It82, there known as miraboo. 
Siam, Malacca, and the Andaman Islands; new to Borneo. 
INTSIA RETUSA (Kurz) O. Ktze. Rev. Gen. PI. 1 (1891) 192. 
Sarawak, Baram District, Hose 507 ; British North Borneo, near Sanda- 
kan, Villamil 52, sterile. 
Delta of the Ganges, the Andaman Islands, Malay Peninsula, and Cochin- 
china; new to Borneo. 
MEZONEURUM Desfontaines 
MEZONEURUM PLATYCARPUM sp. nov. § Eumezoneurum. 
Frutex scandens, aculeatus, partibus junioribus subtus folio- 
lis inflorescentiisque plus minusve brunneo-puberulis vel pubes- 
centibus; foliolis alternis, subcoriaceis, usque ad 4.5 cm longis, 
oblongo-ellipticis ad obovatis, apice late rotundatis vel subtrun- 
catis, basi inaequilateralibus ; fioribus circiter 15 mm longis, 
extus dense cinereo- vel griseo-puberulis, calycis tubo valde obli- 
quis, gibbosis ; petalis valde inaequalibus ; fructibus inaequilater- 
aliter oblongo-obovoideis, circiter 12 cm longis et 5.5 cm latis, 
glabris, nitidis, seminibus circiter 5. 
A scandent aculeate shrub, the younger parts, lower surface of 
the leaflets, and the inflorescence brownish- or griseous- 
puberulent. Leaves apparently large, bipinnate, the rachis with 
retrorse spines. Leaflets numerous, alternate, subcoriaceous, ob- 
long-elliptic to obovate, 2 to 4.5 cm long, 1.2 to 3 cm wide, apex 
broadly rounded or subtruncate, the midrib forming sometimes 
a very short apiculus, base usually distinctly inequilateral, 
rounded or slightly cordate, the lamina on one side extending 
farther along the petiolule than on the other, the upper surface 
glabrous, shining, nearly black when dry, the lower puberulent; 
lateral nerves 7 to 9 pairs, rather slender, anastomosing, scarcely 
more distinct than are the secondary ones and the primary reti- 
culations ; petiolules about 2 mm long. Flowers numerous, some- 
what crowded on the racemelike branches of the inflorescence, 
their pedicels pubescent, about 10 mm long, the flowers about 15 
mm long. Calyx-tube very oblique, gibbous, 4 to 5 mm long, 
externally densely puberulent, about 7 mm in diameter, the lobes 
very unequal, the larger one broadly obovate, rounded, puberu- 
lent, concave, about 7 mm long and 6 mm wide, two lateral ones 
about 5 mm long and 3.5 mm wide, elliptic-ovate, rounded, the 
remaining two suborbicular, 4 to 5 mm in diameter. Petals very 
unequal, one about 10 mm long and 8 mm wide, glabrous, prom- 
inently two-lobed, when spread about 8 mm wide, the lobes some- 
