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Tabula 2828. 



IMPATIENS DORSTENIOIDES, ]Yarh. 



Geraxiaceae. Tribus Balsa^mineae. 



m 



I. dorstenioides, Warh. in Engl iind PranlL N atari, Pflanzenj. 

 vol. iii. (1895), 5, p. 391, absque descriptioiie ; ab omnibus speciebus 

 hactenus descrfptis Jabelli nervis 3 crassis et forte trabeculafis differt. 



Ilerba fere glaberrima ; caules e basi repeuto simplices, ascendentes, 

 10-15 cm. longi, viscidi, inferne apbylli. Folia 2-5 cm. loiga, alterna, 

 petiolata, elliptico-ovata vel ovato-lanceolata, acuta vel acuminata, 

 obscure crenata, setiilis ainibus iuterjectis. Flares in axiJlis foliorum 

 ^olitarii, bievissime pedicellati, ad 1-5 cm. diametro, crasse nervosi ; 

 pedicelli pubesceiites, fructiferi elongati, ebracteati (?). SepaJa 2, 

 3-5 mm. longa, lincaria, obtusa, 3-ncrvia. YcxiUum erectum, ob- 

 ovatum, ol)tusum, fornicatum, costa dorso sotulosa 5-norve, nervis 

 reticulatis, AJar scssiles, 8 mm, longao, 2dol)ao ; lobus l)a.saHs minutus, 

 subquadratus ; distalis longe stipitatus, stipite margine conravo minute 

 tuberculato ; lamina ampla, orbicularis vel flabelliformis, 5-7 nnn. 

 lata, creben'ime nervosa. LabeUum scajililfcn'me, ovatum, acuminatum, 

 ecalcaratum, 3-nerve, nervis crassis trabeculatis interstitiis quasi 

 lacuuosis. Filumenfa gracilia ; antlieiae didyjnae. Ocarium breve, 

 crassnm, forte incurvum, uLlusum. Capsida innnatura, ovoidea, 

 gibba. — Trimorphopetalum dorstmiioides. Baker, in Journ. Linn. Soc. 

 1887, vol. xxii. p. 454. 



Madagascar : without locality ; J?n\ /?. Baron, 4476. 



The in\perfection of the specimens of tliis curious balsam, the 

 paucity, minuteness aiul bad condition of the preserved flowers, suf- 

 ficiently account for Mr. Baker having misujiderstood the nature of its 

 floral organs and regarded the plant as constituting a new genus of 

 Balsamineae. ITaviiig myself studied it on two occasions, I can 

 answer for the remarkable correctness of Miss Smith's drawing bore 

 given, with the sole exception that I find the pedic*»ls to be densely 

 pubescent and the sepals to be always ol)tuse. The nerves of the 

 floral organs vary a good deal in number, direction and composition, 

 those of the vexillum being sometimes as thick as those of the lip. 



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