that it must bea totally different plant from the J. trinerve 
of the latter. Roxburgh describes his species with short 
etioles, having a remarkable joint in their middle, a calyx 
of six subulate segments, nearly half as long as the tube 
of the corolla; and with a large corolla, the segments of 
which are filiform, and an inch and half in length. With 
none of these characters does the subject of the present 
article agree. We may add, that J. trinerve of Vahl is a 
native of Java, while Roxburgh’s species is found in forests 
near Sylhet. 
For the above reasons, the synonyms of Roxburgh’s 
J. trinerve may be amended thus: 
J. stenopetalum; scandens, levigatum, foliis simplicibus, ovato-lanceolatis 
acuminatis trinervibus, laciniis calycis subulatis dimidio tubi longitudine, 
corolle (6-8) filiformibus tubo multd longioribus. 
J. trinerve. Roxb. Fl. Ind. 1.91. Rom. et Schultes sp. pl. mant. 7.89. 
Ker. in Bot. Reg. 9. in app. non Vahlii. 
To J. simplicifolium, the subject of this article is nearly 
related, but that species may at once be distinguished by 
its leaves not being 3-nerved. We also find, in wild 
specimens from the Friendly Islands, formerly communi- 
cated to us by Sir Joseph Banks, that the calycine seg- 
ments of J. simplicifolium are downy ; but we are uncertain 
whether that is a permanent character. ‘ . 
We do not know upon what authority the Mogorium 
acuminatum of Lamarck, described with cirrhose petioles, is 
referred to J. trinerve as a synonymous plant. Persoon 
retains it as a distinct species. 
Our drawing was made at Mr. Colvill’s Nursery. 
A robust stove plant, twining to a great length before it 
flowers. The branches are round, and dark green; the 
leaves opposite, simple, stalked, ovate-oblong, acuminate, 
3-nerved, with a few transyerse veins towards the end, 
which are almost immersed on both sides. Cymes few- 
flowered, terminal, smooth, with subulate persistent 
spreading bracts. Calyx quite smooth, with 6 or 7 subu- 
late blunt segments, which are much shorter than the tube 
of the corolla. Corolla white, with a cylindrical tube, 
which is a little thickened towards the end, and a 7-8 
parted flat limb, the segments of which are equal and 
lanceolate, and at least twice as short as the tube. 
