470 xxxli. GEHANiACEiE. (§ Balsamineae, Hook, f.) [Impatiens. 



A very distinct species in foliage, and at once recognised by _the_ alternate am- 

 plexicaul upper leaven, but the lower leaves, habit, flowers and fruit differ little from 

 I. sulcata and Thomsoni. The stem is 4-angled, peduncles short, flowers fewer and 

 smaller, and the capsule is hardly clavate, 1-1 J in. 



B II.— Unifloe^. (See also /. discolor, spirifer and serrata under B HL, 

 which are sometimes 1-flowered). 



92. X. tripetala, Eoxb. Fl Ind. Ed. Carey, ii. 453 ; tall, glabrous, rarely 

 pubescent, branched, stout, leaves large membranous long petioled opposite 

 alternate or whorled ovate- or elliptic-lanceolate acuminate crenulate, 

 pedicels slender solitary or fascicled, flowers large, sepals subulate falcate, 

 standard obovate spurred at the back, wings small, lip deeply saccate, 

 spur short abrupt incurved. I. multiflora. Wall. Cat. 4742 ; H.f.& T. in 

 Joum. Linn. Soc. iv. 126. 



Tropical Himalaya, Sikkim, alt. 2-5000 ft., J. D.JS.; Bhotan, Duphla Hills, 

 Booth; Assam, Silhet, and Khasia Mts., alt. 0-3000 ft. 



Annual. Stem stout, succulent, 1^-2 ft., swollen at the nodes, simple or with- op- 

 posite branches. Leaves 2-8 in., exclusive of the petiole, which is often 5 in., mem- 

 branous, acuminate, glabrous or sparsely pubescent above, nerves very numerous, lower 

 crenatures often with bristles. Pedicels 4-1 in., glabrous, braoteate at the base when 

 fascicled on a short peduncle. Flowers red or purple, 1 J in. from the base of the lip to the 

 tip of the standard, glabrous or pubescent; sepals very small for the size of the flower; 

 standard galeate ; wings mth two suborbicular lobes ; lip rounded at the base, suddenly 

 narrowed into a spur. Capsule 4-f in., ellipsoid, quite glabrous. Seeds many, pyriform, 

 testa rough opaque. — Specimens of this might be referred to sections B. i. and B. m., 

 according as the leaves are opposite or alternate, and the pedicels solitary or collected 

 om a peduncle. 



93. I. puberula, DC. Prodr. i. 684 ; slender, erect, leafy, pubescent, 

 leaves petioled elliptic-lanceolate crenate acuminate eglandular, pedicels 

 subterminal bracteate slender l-flowered, flowers pubescent violet, sepals 

 broad, standard orbicular notched dorsally winged, terminal lobe oi wings 

 broadly semi-obovate, lip 'conoidal, spur long slender incurved, capsule 

 slender. Wall. PI. As. Ear. ii. 83, t. 193 ; Cat. 4767 A ; H.f.&T. in 

 Journ. Linn. Hoc. iv. 141. I. mollis, Wall, in Roxh. Fl. Ind. Ed. Carey, 

 ii. 461. I. hispidula, Benth.-in Wall. Cat. 4740. 



Temperate regions of the Sikkim and Nipal Himalaya, alt. 5-6000 ft. 



Stem 2-3 ft., sparingly branched, pubescent above. Leaves 1-3 in., membranous, 

 usually pubescent on both surfaces ; petiole rather short ; stipules 0. Pedicels 1-1 \ in., 

 pubescent, usually confined to the uppermost axils ; bracts subulate, basal, or 0. 

 Flower flat, IJ-l j in. from thestandard to the wings ; sepals broad ovate acuminate ; 

 standard almost as large as the two wings, and, like them, of a deep violet colour; wings 

 of 2 sessile lobes, lateral smaller rounded ; lip rather small ; spur 4 in. Capsule 1 in., 

 glabrous. Seeds immature. — In the Linnean Journal I confounded with this under 

 variety ^, a Khasia plant which I now find should be referred to I. bella, leaving this a 

 single-flowered species. The Sikkim specimens are larger leaved and more glabrous than 

 the Nipalese. 



94. X. arg'uta, H. f.&T.in Joum. Linn. Soc. iv. 137 ; slender, erect, 

 glabrous or sparsely pubescent, leaves ovate or lanceolate sharply ser- 

 rate, petiole usually glandular, peduncle very short 1-2-flowered, bracts 

 setaceous twisted or 0, flower large, sepals ovate-cordate, standard orbi- 

 cular spurred behind, terminal lobe of wings very long pendulous, lip 

 elongate saccate, spur short stout incurved. 



