116 MR. J. G. BAKER ON THE 
lanceolatis, posteriore limbo parvo naviculari calcari subulato semipollicari, 
petalis latis rubellis magnitudine mediocribus haud lobatis, ovario oblongo 
utrinque angustato. 
Anannual herb, with long slender fragile glabrous stramineous 
branches. Leaves distant, alternate ; petiole i-i in. long, mar- 
gined with 2-3 pairs of large clavate glands ; blade very membra- 
nous, 3-4 in. long, 1-11 in. broad at the middle, narrowed gra- 
dually to the base and aeute point, with a few inconspicuous 
bristles on the upper surface, minutely erenate, with a small 
bristle in each sinus. Flowers umbelled in the axils of several 
of the upper leaves, the slender peduncles not more than an inch 
long. Lateral sepals oblong-cuspidate, membranous, glabrous, 
4-1 in. long; posterior sepal with a navieular lamina 1 in. Jong 
and broad, and a spur half an inch long. Petals reddish, the side 
ones 3 in. long and broad. Ovary oblong, narrowed to the base 
and tip.—Central Madagascar, in forests of the province of 
Imerina, Bojer! Lyall 51! Baron 744! Easily recognized from 
the other Madagascar species by its umbelled flowers. 
IMPATIENS TRICHOCERAS, n. sp. 
Herbacca, ramulis gracilibus fragilibus apice ferrugineo-pilosis, foliis 
petiolatis oblongis acutis membranaceis crenatis setoso-ciliatis, petiolo 
haud glanduloso, floribus axillaribus 1-2nis longe pedunculatis, sepalis 
pilosis lateralibus lanceolatis, posteriore lamina deltoideo-naviculari calcari 
subulato 12-15 lin. longo, petalis parvis latis rubellis, ovario utrinque 
attenuato. 
A flaccid herb, with very slender fragile branches ferrugineo- 
pilose towards the tip. Leaves distant, alternate ; petiole 2-1 in. 
long, without any large clavate glands; blade 11-2 in. long, 
2-1 in. broad, acute, cuneate at the base, membranous, dark 
green, crenate, with a glandular bristle in each sinus. Flowers 
1-2 together from the axils of the upper leaves, on slender 
ascending pilose peduncles 1-14 in. long. Lateral sepals lanceo- 
late, } in. long; posterior sepal pilose, with a deltoid-navicular 
lamina j-3 in. long, and a subulate pilose spur 1-14 in. long. 
Petals reddish, the wings under lin. long. Ovary narrowed 
from the middle to both ends.— Central Madagascar, Lyall 46! 
We have also two other Madagascar species gathered by Dr. 
Lyall, one a flaccid annual near Z. capensis, Thunb., and the other 
a shrubby species near T. firmula ; but of both the material is too 
incomplete to characterize them properly. 
