Slay, 1918. 



T. NAKAl-.-PLANTJE JAPOSIM ET KOREJE. XVII. 



Nom. Jap. Takeshima-zakura. 



Hab. in insula Ooryongto (Takenoshin Xakai n. 4363, 6148-52). 



332) Phellodendron insulare, Nakai sp. nov. 



Nearest to Phellodendron sachalinense, but differs from it, by- 

 having thin corky bark and slenderer inflorescence. 



Arbor 30m. alta. Truncus 3.23 m. ambitu, tenuiter suberosus et 

 demum ut squamis tenuibus sensim sejuncttis cinereus. Ramus junior 

 rubescenti-fuscus lucidus lenticellis fuscis horizontalibus crebri-notatus. 

 Ramuli annotini claro-rubescenti-fusci lucidi, lenticellis albis minutis 

 sparsissime punctati. Cataphylla oblanceolata viridis 2.5-3.5 cm. longa. 

 Folia 3-5 jugo imparipinnata. Foliola lanceolata v. late lanceolata v. 

 ovato-lanceolata petiolulata basi acuta v. attenuata, apice acuminata 

 v, caudato-acuminata, supra glaberrima, infra glaucina et secus costas 

 tantum basi barbata, margine minute crenulato-serrulata. Flores $ 

 sepalis minutis triangularibus v. late ovatis margine fimbriato-ciliatis 

 0.5-1 mm. longis, petalis flavo-viridibus 3 mm. longis oblongis v. 

 lineari-oblongis navicularibus. Stamina exerta. Flores .$. mihi iguoti. 

 Nom. Jap. Takeshima-kihada. 



Hab. in insula Ooryongto : in monte Joho 600 m. (Takenoshin 

 Xakai n. 4382, 4379), in silvis Ohbokdong (Takenoshin 

 Nakai n. 4380), in silvis Miroppon (Takenoshin Nakai 

 n. 4381 j. 



333) fleer takesimense, Xakai sp. nov. 



A. Okamotoi, Xakai in Tokyo Bot. Mag. XXVII (1913) p. 130 exel 

 descript. fructus et Fl. Sylv. Kor. i. (1915; p. 13. PI. I. excl. fructus. 



Among the known species A. Pseudo-Sieholdianum et A nudkar/jiiiii 

 come nearest, but in this species leaves always 13 (rarely 14 1 lobed 

 and more incisely sinuated. 



Frutex ramosissimus circ. 6 pedalis glaberrimus. Ramus viridis 

 apice rubescens. Folia pctiolis 35-73 cm. longis rubescintibus apice 

 prima barbatis demum glabrescentibus supra canaliculatis, 13 (rarius 

 14) lobata, lobis angustis oblanceolatis longe attenuates simiato- 

 duplicato-incisa Bed basi integerrimis, supra viridia v. margine rubes- 

 centia glabra, subtus pallida et in axillis veiiarum jui iiiririnrtim barbata, 

 nsque 10 cm. longa 12 cm. lata. Flores ignoti. Corymbus fructibus 

 2-7 glabcrrimis. Fructua glaberrimus cum ea Aceris Paeado-Sieboldikoi 

 v. korcani conformis, maturatus ignotus. 



Nom. Jap. Okino-liaucliiwa 



Hab. iii insula Ooryongto: in rupibus Dodong (TaKBNOSHIM 



Xakai o. Ills, Kinzo Okamoid). 



