Mar.. 1919.] ROTULjE AD PL ANT AS JAPONLE ET KOEEuE XX. 59 



lanceolatis v. lanceolatis apice attenuatis basi attenuatis v. rotuudatis 

 petiolulatis 9 cm. longis 3.6 cm. latis (7.8-3.6, 9.5-3.3, 9.0-3.0 etc), 

 lateralibus ad basin sensim diminutis late lanceolatis v. ovato-lan- 

 ceolatis, omnibus praeter costas subglabras dense moUiter albo-velutinis, 

 supra viridibus adpressissime sparseque pilosis, margine ciliolatis. Flores 

 ignoti. Infructescentia in apice rami hornotini terminalis ambitu pyra- 

 midalis pedunculo circiter 5 cm. longo ramisque adpresse pilosulo. Frutus 

 diametro 6-8 mm. globosus lucidus sparse pilosulus maturitate niger. 



Nom. Jap. Urajiro-kihada. 



Hab, Core a sept. : 

 in dumosis secus flumen Horogawa (Takenoshin Nakai n. 7218-7220). 

 This Phellodcndron is an ally of P. amurense, from which differs by 

 having velutinous leaflets. The distribution of this is torerably restrict- 

 ed only along the bank of the Horogawa about 12 miles in length. It 

 makes bushes with Prunus mandshurica, Pirus ussuriensis, Rhamnus 

 davurica, Maackia amurensis, Acer pictum and some others affording 

 a special feature to the land. 



444) Acer palmatum, Thunberg F1. Jap. (1784) p. 162. 

 var. pilosum, Nakai. 



Folia palmatira 7-9 fida, lobis duplicato-iuciso-serratis. Petioli et 

 vense primariae subtus albo-pilosi. Pedunculi et pedicelli albopilosi in 

 fructu fere glabrescentes. Alae samara; obovatae 14— 16mm. long^. 

 Nom. Jap. Usuge-yama-momidji. 

 Hab. Corea sept. : 

 Unsan (E. H. Wilson n. 8649). in silvis Hokkazui (Takanoshin 

 Nakai n. 7235) in monte Hichihozan (Takenoshin Nakai n. 7236 J. 



445) Acer pictum, Thunberg F1. Jap. (1784) p. 162. 

 var. horizontale, Nakai 



Petioli elongati usque 13 cm. longi. Lamina 5- (rarissime 4- v. 6-) 

 fida basi subtruncata v. leviter cordata. Ahc samarce horizontales 

 loculis 3-3.5 plo longiores, cum loculis tisque 31mm. longa;. 

 Nom. Jap. Miyama-itaya. 



Hab. Corea sept. : i 



in silvis Hojodo (Takenoshin Nakai n. 7241). 



This extreme variety resembles to Acer Ixtiim, but is nearer to 

 Acer pictum in having longer petioles and smaller fruit. Acer pictum 

 var. Savatieri, Pax comes just between this variety and the type of 

 Acer pictum. I found only one tree which stands on the cliff near 

 Rokusogan (six-monks rock) along the river Horogawa, north Hamgj'o- 

 eng. The Europaean botanists (like Pax, Schneider) depend on the 

 length of wings too much when classifying Acer pictum and Acer leetum. 



