80 LEGUJONO82E. 



racemis axillaribus 2-4-fasciculatis pedicellis 1 em. longis floribus 2-3- 

 fasciculatis, bracteis obsoletis, petalis ad raarginera purpurascentibus. Calyx 

 breve cylindricus, apice subtruncatus, 5-dentatus, dentibus posterioribus 

 subobsoletis, 3-aiiterioribus conspicuis, medio pins conspicuo. Vexillum 

 obovoideum apice emarginatum ; alee leviter longiores medio cum carinis 

 tenuiter conniventes ; carinse apice liberse, basi distinctse. Stamen vexillo 

 oppositum liberum, csetra connata. Stylus filiformis postice recurvus, antice 

 deorsum ciliolatus ; stigma terminate, punctiforme ; ovarium sessile, ovulis 5. 

 Fructns oblongi subcomplanati obliqui 4 cm. longi 3 cm. lati 23 mm. 

 crassi 1-spermi exalati lignosi extus dense tubercnlati, prope suturam 

 sublseves et obscure costati, in mature rarius ad suturam inferiorem 

 dehiscentes, apice rotundati ad summum breve apiculati, basi obtusi vel 

 breviter stipitiformes angustati medio sensim et obscure tenuissime vix vel 

 hand constricti, pedicellis 1 cm. longis validis. Semina obreniformia 3 cm. 

 longa 2^ cm. lata ; testa nitida nigricans, ad apicem medio et ad centrum pro- 

 funde impressa; cotyledonibus amplis late oblongis 3 cm. latis 22mm. longis 

 basi profunde cordatis, sinibus 14 mm. longis ; radicula obsoleta. 

 HAB. Sankakuyu, leg. K. NAGAI, 1902. 



The present plant is one of those leguminous plants which afford a 

 poisonous matter used for fishing by the aborigines in Formosa. It was 

 first labelled by Prof. J. MATSUMURA as Derris chinensis BENTH. Soon after, 

 the professor regarded the plant different from BENTHAM'S species and 

 named it D. taiwaniana. The same plant was studied by Dr. K. NAGAI 

 who regarded it to be referable to Loncliocarpus or more probably to 

 Coubulandia, but not to Derris. He then expressed this opinion in a 

 number* of the Journal of the Tokyo Chemical Society. In my opinion, 

 the plant certainly does not belong to Derris on account of its wingless 

 fruits ; nor should it be referred to Loncliocarpus, for the plant has a sessile 

 ovary, but has neither elongated pod nor broaded suture. It is also different 

 from Coubulandia in having neither torulose nor rounded pods. A genus to 

 which the present plant should probably be referred is, in my opinion, 

 Pongamia, as is seen from the structure of the fruits. The descriptions of 

 * Journal of the Tokyo Chemical Society XXIII 7, pp. 744-777 (Japanese). 



