JL NYMPH^EACEJE. 



HAB. Musha Oiwake, leg. B. HAY ATA, Mai. 1916 ; Gokwanzan, leg. II. 

 MORI, Feb. 1910. 



Near M. lomariifolia TAK., but differs from it in the much narrower leaflets 

 which are less spinous at the margin and have the less elevated veinlets. 



Nymphaeaeese. 



NupJiar SM. 



- Nuphar Shimadai HAYATA sp. nov. (PI. I.) Herba aquatica ; rhizoma 

 crasstnn repeiis subteres 1 cm. in diametro sectionis sursum radiciferum, radici- 

 bus teretibus incrassatis 3 mm. in diametro sectionis. Folia circum rhizoma 

 spiraliter disposita longe petiolata, lamina in ambitu oblonga vel ovata (ab 

 apicem laminse usque ad apicem auriculae) 8-10 cm. longa 7-8 cm. lata apice per- 

 fecte rotundata basi sagittato-cordata (lobis cordis subtriangularibus 3-4 cm. 

 longis apice obtusissimis) margine subintegra supra in exsiccato minute muricato- 

 scabriuscula glabra subtus versus medium pauce versus margmem densissime 

 hirsuta, costis supra hand visis subtus leviter elevatis, venis lateralibus 

 radiatim divaricatis supra hand subtus distincte visis tenuissimis, subcoriacea, 

 petioUs 15-30 cm. longis basi dilatatis. Scapus 25 40 cm. longus teres 3-3 

 mm. in diametro sectionis erectus. Flores flavi solitarii terminales. Sepala 

 5 obovata vel spathulato-obovata plus minus inaequalia Jmajora 2cm. longa 

 13 mm. lata apice late rotundata vel emarginata basi angustata ad insertionem 

 3 mm. lata vel latiora, exteriora minora plus craasa interiora majora tenuissime 

 membraiiacea. Petala oo breviora staminodiiforniia 6 mm. longa 2^3 

 mm. lata dorso complanata obovato-quadrangulariformia apice truncata vel 

 emarginata. Stamina GO cum antheris 1 cm. longa, filamentis dorso complanatis 

 8 mm. longis 1 mm. latis glabris, antheris quadrangulari-formibus 2 mm. longis 

 1 mm. latis apice truncatis, loculis 2 linearibus introrsis a se | mm. distantibus. 

 Ovarium semi-rotundato-coiiiforme 3-4 mm. longum 7 mm. latum glabrum 

 apice ad stylum 1-2 mm. longum abeuns, stylo apice 10-fido, segmentis 2 mm. 

 longis exteriore reciiirvis apice acutis facie interiore prominents 1-carinatis ad 

 carinas stigmatosis. Bacca late globosa 17 mm. longa 20 mm. lata apice stigmate 

 coronata. Semiiia globoso-ovoidea 4 mm. longa 3 mm. lata apice obtusa basi 

 rotundata, testa Crustacea fusco-castanea ; albumen osseum sucineum semi- 

 pellucidum. Embryo teres centralis. 



HAB. Sliiucliikucho : Sliimpo, leg. Y. SHIMADA, Dec. 1915. (Fl. et fr.) 



