124 
Dr. Jack's Account of the Lansium 
HYDNOPHYTUM. 
Tetrandria Monogynia. N.O. Rubiaceae. Juss. 
Calyx integer. Corolla limbo 4-fido, fauce pilosà: Stamina 4, 
brevia, fauci inserta. Stigma bifidum. Bacca disperma. 
Super arbores parasitica, basi tuberosa, floribus axillaribus. 
HyDNOPHYTUM FORMICARUM. 
Nidus germinans formicarum nigrarum. Rumph. Amb. vi. p. 119. 
t,.55.. fig. 1. 
Prio Hantu. Malay. 
On trees in the forests of Sumatra. 
This grows parasitic on trees in the form of a large irregular 
tuber, fastening itself to them by fibrous roots, and throw- 
ing out several branches above. The tuber is generally 
inhabited by ants, and hollowed by them into numerous 
winding passages, which frequently extend a good way along 
the branches also, giving them the appearance of being fis- 
tular. Leaves opposite, short-petioled, elliptic-obovate, 
nearly obtuse, acute at the base, very entire, very smooth, 
thick, with the midrib flattened, and a few inconspicuous 
nerves. Stipules interpetiolar, linear. Flower's axillary, ses- 
sile, generally aggregated on a double gemmaceous knob. 
Calyx superior, very short, entire. Corolla white, tubular; 
limb four-cleft ; faux villous. Stamens alternate with the seg- 
ments of the corolla; filaments scarce any. Ovary crowned 
with a prominent umbilicate disk, disporous. Style longer 
than the tube. Stigma of two revolute linear thick lobes. 
Berry of a semipellucid reddish-yellow colour, ovate-oblong, 
two-seeded. Seeds oblong, contained in a tough integument, 
with the embryo in the axis of the albumen. , 
Oss. 
