LEGUMINOSJE. 77 



Derris LOUR. 



Derris alborubra HEMSL. in Bot. Mag. t. 8003. 

 HAB. Hainan, leg. Z. KATSUMADA, 1910. 



Denis hainanensis HAYATA sp. nov. Kamuli teretes inulti-striati, 

 glabri. Folia impari-pinnata, in ambitu oblonga 8 era. lata, 13-15-foliolata, 

 foliolis membranaceis obovato-oblongis 4 cm. longis 18 ram. latis apice rotun- 

 datis breve cuspidatis, (cuspidibus 1-2 mm. longis ad summum obscure 

 mucronatis), basi obtusis margine integris utraque glabris, costis utraque 

 pagine leviter elevatis, Tenis lateralibus tenuibus distincte visis, facie sub 

 lente minute denseque tuberculatis vel reticulatis, petiolulis 5 mm. longis, 

 petiolis communibus 7 cm. longis, stipulis oblongo-triangularibus apice 

 obtusis basi infra insertionem productis truncatis extus tomentosis inttis 

 glabris crassiusculis. Flores racemosi vel paniculati, racemis axillaribus vel 

 solitariis 10 cm. longis laxifloratis, pedunculis 5 cm. longis, pedicellis 1-2 cm. 

 longis, bracteis minutis triangularibus globosis apice acutis basi rotundatis 

 extus hirsutis margine ciliolatis intus glabris crassiusculis ; basi pedicelli 

 bracteis 1, apice pedicelli bracteis 2 dispositis. Calyx campanulato-cupuli- 

 formis, 4 mm. longus 7 mm. latus subglaber prope marginem tenuiter pubes- 

 cens, ore subtruncatus, obscure brevissime 5-dentatus. Vexillum sub- 

 orbiculare, 1 Jem. longum, apice lobato-emarginatum, basi cordatum breve 

 unguiculatum, ungue 3 mm. longo cuneiformi basi 1 mm. lato apice 2 mm. 

 lato basi laminse squamis 2 dispositis, squamis triangulari-cuspidi- 

 formibus, 2 mm. longis ; alse 1^ cm. longse, laminis oblique oblongis 11 mm. 

 longis 4-5 mm. latis apice obtusis basi latere superiore auriculatis, unguibus 

 5 mm. longis linearibus ; carinse cultriformes alis aequilongse 1 cm. longse, 

 laminis oblique oblongis 10 mm. longis infra medium gibboso-inflatis cum 

 alis confluentibns, unguibus linearibus 6 mm. longis. Ovariurn sessile 

 lineare 11 mm. longum 1 mm. latum complanatum hirsutum apice gi-adatim 

 ad stylum 1-2 mm. longum abeuns, stigraate terminal] globoso. 



HAB. Hainan, leg. K. KATSUMADA, 1911. 



Near D. oblonga, but differs from it by the quite glabrous calyx and leaves. 



