140 BALSAMINE. IuPATIENS. 
. 460. (19) I. K/einii (W. & A.:) erect, with spreading diffuse branches: 
leaves opposite, from obovate and obtuse to lanceolate and acute, with a 
. large gland on each side near the petiole ; upper side hairy on the veins and 
near the margin; under glaucous: pedicels solitary or in pairs, filiform, 
longer than the obovate leaves, shorter than the lanceolate ones, in fruit re- 
flexed: lateral sepals linear, equal to the column ; posterior one hairy, con- 
cave, larger than the posterior lobe of the petals, much smaller than the 
elongated obovate anterior lobe ; lower one with slender spur, nearly twice 
the length of the flower: capsule narrow-oblong, tapering at both ends, few- 
seeded.— Wight ! cat. n. 442.—1. fasciculata, Klein! in Wall. L.—1. tenella, 
Án - n. 4146. b.—Balsamina minor, DC.? prod. 1. p. 686.— Rheed. Mal. 
. t. 505, 51. 
We feel tolerably certain that Rheede's t. 51. belongs to this: the deserip- 
tions of the stems, “ slender, terete, transparent, shining, jointed, throwing 
out shoots from the joints,” and of the spur, “ curved from the pedicel up to 
between the two petals," and his figure of the latter, are sufficiently charae- 
teristic: we have more doubts about t. 50. Both figures represent the plant 
more robust, and every way larger than our specimen. 
461. (20) I. tenella (Heyne :) erect: leaves opposite, lanceolate, shortly- 
petioled, sometimes slightly cordate, remotely bristle-serrated ; under side . 
glaucous; upper in the younger ones hairy: pedicels solitary or in pairs, 
sometimes longer than the leaves, pubescent on one side, horizontal but not 
reflexed in fruit: flowers small, longer than the straightish conical spur: 
capsules oval, pointed, few-seeded.— Heyne! in Wall. ! L. n. 4146.a. i 
This is at once known from the allied 7. K/einii, by the short straight co- 
nical spur, and by the horizontal, not reflexed, fructiferous pedicels. 
` 462. (21) I. filiformis (W. & A.:) slender, erect, with numerous spreading 
branches: leaves opposite, distant below, approximated towards the top of 
the branches, linear-lanceolate, glabrous on both sides: pedicels solitary m 
the axils of the two or three uppermost leaves, shorter than the leaves: 
flowers minute : lower sepal saccate without a spur: capsule glabrous, ovate, 
pointed at both ends : seeds few, oval, shining-black.—I. mysorensis, Wall.! 
L. n. A743. b. > 
_ This is distinguished from Z. tenella by the want of the spur: there is be- 
sides a considerable difference in the habit of the two plants. J. rosmarini- 
folia of Retz and Bertolone differs by having a short conical spur with 4 
curved point, and by the lower leaves broad and short, while the upper ones 
are long and narrow. 
IL. HYDROCERA. Blume.—Tytonia, G. Don. 
Sepals 5, distinct, coloured. Petals 5, unequal, distinct ; the upper one 
arched. Stamens 5: filaments connate at the apex: anthers slightly con- 
nate, 2-celled, opening at the apex. Stigmas 5, sessile, acute. Fruit succu- 
lent, drupaceous, 5-angled, 5-furrowed, 5-celled ; endocarp hard and bony- 
Seeds solitary.—Herbaceous water-plants with angular stems. Leaves alter- 
nate, serrated, exstipulate. Peduneles axillary. ? 
** The type of this genus and of the order Hydrocereæ is Impatiens natans, Willd. 
a circumstance apparently unknown to botanists and even to Blume himself." ARN. 
We have, therefore, reduced the order to Balsaminew. When De Candolle sug- 
gested that J. natans and I. madagascariensis might together form a genus, We h 
n he had not seen the fruit of either, otherwise he would have proposed a muc 
tter character than the one (the gibbous spurs) he recommends, which applies to 
several true species of Impatiens, as I. scabriuscula, I. ula, I. rufescens, and I. 
redu. ^ Rd A aware "n fruit of I. madag iensis has sinc? — 
en seen, and until it be known, we prefer leaving th in Impatiens, W 
which its other characters better Mb sy rat te, on a 
' 463. (1) H. triflora (W. & A.:) leaves from linear to broad-lanceolate; 
serrated, glabrous on both sides, under side glaucous: peduncles short, 
