75 
alterna, petiolata, firma, ovata, acuminata, spinuloso-serrulata, 
subtus pallida, basi breviter in petiolum gracilem 1-3 em. longum 
angustata, nervis utrinque 3-4; glandulae infrapetiolares minimae, 
setaceae vel 0. Jnjlorescentia simpliciter pedicellata; pedicelli 
foliis subaequilongi, solitarii, gracillimi. Flores ad 2 cm. expansi, 
lilacini. Sepala 8-11 mm. longa, anguste ovato-lanceolata, longe 
acuminata, pein: 5-nervia. Vevtllum magnum, oblate trigonum 
angulis rotundatis, 12 mm. latum, costa dorso tenue apiculate medio 
paullo incrassata. Alae sessiles, 12 mm. longae; lobus_ basalis 
obovato-oblongus, apice retusus vel subbilobus, distalis triplo 
major, late obcordatus; auricula dorsalis 0, JLabelli limbus 
scaphiformis, lanceolatus, fere erectus, acuminatus, 1-1'2 cm. 
longus ; calear gracillimum, 4—4°5 cm. longum, dependens, 
. BorNEO AUSTRO-ORIENT. inter Tarik austral. et Kwaru, secus 
ripas rivulorum, H, Winkler, 3050. 
The specimens described are scanty and imperfect, but the 
species is so distinct from any known to me that I have not 
hesitated to describe it. It is clearly closely allied to 1, Hubertii, 
with which it precisely accords in the form of the wings, but in the 
size of the vexillum and form of the sepals they widely differ. 
554, Impatiens Winkleri, Hh. /f. [Geraniaceae-Balsamineae] ; 
inter omnes species ex insulis } Malayicis hucusque notas lobis alae 
distalibus plus minusve connatis distincta. 
Herba humilis, robusta, glaberrima, floribus mediocribus, caule 
plus minusve 1 m. alto simplice 2-3 cm. crasso carnoso. Folia 
ampla, 1-1°3 cm. longa, alterna, patickatas exsiccata membranacea, 
late ovata, cuspidata, minute serrulata, basi acuta, nervis 
utrinque 10-15, petiolo crasso 6-10 cm. longo; glandulae infra- 
petiolares 0?  Injlorescentia simpliciter pedicellata ; ;  pedicelli 
Pe th graciles, 1-2 cm. longi, fructiferi 2-3-plo ie AEE 
Flores ad 3 cm. expansi, rosei brunneo-punctati. Sepala -2, 
cvtabdlaeia: cuspidata, membranacea, reticulatim multinervia, 12 cm. 
diametro. Vezillum oblongum, 14 cm. longum, recurvum, basi 
et apice rotundatum, costa dorso anguste alata, ala apice truncata, 
Alae sessiles, 2 cm. longae ; lobi basales liberi faleatim obovati, 
distales pa aequilongi, late dolabriformes vel semilunares, 
apicem versus repente angustati; auriculae dorsales connatae. 
Labelli limbus 1°7 em. longus, cymbiformis, horizontalis, acuminatus; 
calcar limbo multo brevius, incurvum, crassum, apice bifidum, 
Filamenta brevia, linearia ; antherae parvae, in capitulum decurvum 
connatae. Ovarium angustum, apice acuminatum incurvum. Capsula 
parva, 12 mm. longa, anguste ellipsoidea, longe stipitata et rostrata, 
_rostro recto pugioniforme, oe Semina 2°5-3 mm. longa, 
oblonga, pilis inarticulatis hirsu 
BORNEO AUSTRO - ORIENT. poe Batu Babi et Lumovia, 
H. Winkler, 2866. 
I, dempoana, Hk. f. ined., of Sumatra, and J. Winkler? are the 
only species of about 55 known to me as native of the Malayan 
Archipelago (extending from Sumatra to the Philippine Islands) in 
which the distal lobes of the wings are more or less connate, a 
character common to many Indo-Chinese and a few Malay Penin- 
sula species. 
