a\.\PALA 2852. 



IMPATIENS SEMOUNENSIS, Hk. f. 



Balsamtnaceae. 



I, semounensis, Ilk, /, [sp, nov.) ; species ramosa inflorescentia sim- 

 pliciter pedicellata. pedicellis gracillimis, labello scaphiforme et calcare 

 gracili. 



Ilerha erecta, ramosa, glaborrima, 2-3 dm. alta, ramulis foliosis. 

 Folia 4-7 cm. longa, alterna, petiolata, ovata vel obovata, acuta vel 

 obtusa, cremilata vel serrulata^ meinbranacea, basi in petiolum gracilem 

 1-3 cm. longum angustata, margiiiibus infra medium nudis vel 

 Jonge ciliatis, utrinque concoloria, costa gracili, nervis utrinque 4-5, 

 Inflorescentia sinipliciter pedicellata ; pedicelli solitarii, foUis sub- 

 aequilongi, gracillimi, ima basi bracteati. Flores ad 1'5 cm. expansi, 

 albi, calcare viridi, Sepala 2, lata, oblique ovato-cordata, acuta, 

 3-4 mm. longa. Vexillum trigono-obcordatum, 7 mm. latum, costa 



dorso carinata longe mucronata. Alae 8 mm. longae, sessiles ; lobi 

 suberecti, obcordati, subaequales vel basalis major ; auricula dorsalis 

 obscura. Labclli limhus ad 6 mm. longus, scaphiformis, ovatus, 

 ascendens, apicc aristulatus ; calcar gracile, 2-5 cm. longum. Fila- 

 menta brcvissima, late subulata ; antherae didymae, obtusao. Ovarium 

 rectum, acuminatum. Capsnlae 12-15 cm. longae, gibbosae, ovoidoae, 

 breviter stipitatae et rostratae, polyspermac. Semina oblonga 

 vel obovoidea, 2'5-3 mm. longa, laevia vel minutissinie papillosa, 

 glabra, castanea. — J, D. Hooker. 



Indo-China : Bay of Semoun, on the walls of a ruined temple on 

 the banks of the river Seng-treng, Dr. Harmand, 89. Paris Herbarium. 



Fig. 1, sepal ; 2, standard ; 3, wing ; 4, lip ; 5, stamens ; 6, ovai^' ; 7, cappulo ; 

 8, seeds. All more or less enlarged. 



