ILLUSTRATIONS OF INDIAN 
BOTANY. _ 
By Dr. Wight & G. A. W. Arnott, Esq. 
: ( Continued from page 183: ) 
HYDROLEA ZEYLANICA. 
Tas. XXVI. 
. Inermis, foliis lanceolatis glabris, flori- 
bus axillaribus racemosis, calyce glandulo- 
80-piloso. 
Hydrolea Zeylanica. Vahl, Symb. 2. 
p.46. Willd. Sp. Pl. v.1.p.1327. Spreng. 
Syst. Veget. v. 1. p. 865. Ram. et Schult. 
Syst. Veget. v. 6. p. 192. 
Nama Zeylanica. Linn. Sp. Pl. p. 327. 
Fl. Zeyl. p. 117. t. 2. 
Steris Javana. Linn. Mant. p. 34. 
^ aie aquatica. Burm. Ind. p. 73. t. 
3 
Attalerie. Plukn. Alm. 22. t. 130. LL. 
Isgera. Vallel. Rheed. Mal. 10. t. 28. 
Herbaceous. Stems erect, towards the 
extremities variously bent, decumbent, and 
sometimes rooting near the base, round, 
glabrous, somewhat flexuose. Leaves 
short, petioled, lanceolate, rather obtuse, 
smooth, bright green above, below marked 
With numerous prominent parallel veins. 
x Racemes axillary, somewhat leafy, spread- 
"ng few-flowered; every part of them, 
. Riches, pedicels, and calyx glanduloso- 
WT . nt Pedicels one-flowered, usu- 
ally opposite to a small bracteal leaf; but 
Sometimes a little either above or below 
* d opposed leaf, rarely axillary. Flowers 
EE 
d 
j 
Nico SSR, : ace a CSET ae e a c 
X I taped ; tube short; 
“visions obtuse, Spreading, or even some- 
Mat reflexed when fully open. Stamens 
— .» Pate with the segments of the co- 
: k Filaments the length of the tube, 
to it by a dilated base. Anthers 
lich's conti- 
ns (Cat. n. 4398), but our Ceylonese 
. baee have all these parts per- 
D. 
REMARKS ON THE GAMBOGE TREE OF CEYLON. 
195 
in the permanent calyx, two-celled, many- 
seeded : Seeds growing all round a large 
fleshy receptacle, which forms part of the 
partition. 
This plant inhabits water, or marshy 
ground throughout the rainy and cool sea- 
sons, flowering about January. When it 
grows in or close by water, its branches 
frequently shoot across it, floating like 
those of aquatic plants. Its numerous 
bright-blue spreading flowers, added to 
the locality in which it was growing, made 
me suppose, the first time I saw it, that it 
was the Veronica Beccabunga. When 
floating I have seen it several feet long. 
The leaves beaten into pulp, and applied 
as a poultice, are considered efficacious in 
cleaning and healing ill-conditioned ulcers, 
particularly those in which maggots have 
begun to breed. 
g-1. Corolla laid open. 2. Calyx laid open, 
including the Pistil :—magnified. 
REMARKS ON THE GAMBOGE 
TREE OF CEYLON, AND CHA- 
RACTER OF HEBRADENDRON, 
A NEW GENUS OF GUTTIFE- 
RÆ, AND THAT TO WHICH THE 
TREE BELONGS. 
By Robert Graham, M.D., Professor of Botany in the 
niversity of Edinburgh. 
TaB. XXVII. 
There are, in tropical countries, many 
lants which yield a yellow juice, so nearly 
resembling Gamboge in external charac- 
ters, and it is said, even in medical proper- 
7 ties, that they have each obtained in their 
! respective countries, the name of Gamboge 
Plant. These belong to exceedingly dis- 
similar families, their products are never 
exported from the countries in which they 
grow, and they are thérefore known not to 
yield any part of the Gamboge of com- 
merce. It has been much doubted, how- 
t ever, whether this is the produce of one 
plant only, and those Botanists who believe 
that it is so, differ in opinion as to what 
that plant is. 
Modern Naturalists think this substance 
is obtained from a plant belonging to the 
N 
