Table 1 Species used in the present study

Arbor

Ar-1

Eupteleaceae

Euptelea polyandra Siebold et Zucc

II

42

Ar-2

Sapindaceae

Acer rufinerve Siebold et Zucc

II

38

Ar-3

Theaceae

Stewartia pseudocamellia Maxim

I

–

Ar-4

Styracaceae

Styrax obassia Siebold et Zucc

II

30

Ar-5

Oleaceae

Fraxinus lanuginosa Koidz. f. lanuginosa

II

42

Ar-6

Aquifoliaceae

Ilex macropoda Miq

I

52

Ar-7

Araliaceae

Kalopanax septemlobus (Thunb.) Koidz

II

34

Subarbor

Su-1

Hamamelidaceae

Hamamelis japonica Siebold et Zucc

II

52

Su-2

Rosaceae

Malus toringo (Siebold) Siebold ex de Vriese

II

34

Su-3

Rosaceae

Pourthiaea villosa (Thunb.) Decne. var. villosa

II

51

Su-4

Rosaceae

Sorbus commixta Hedl. var. rufoferruginea C.K.Schneid

II

30

Su-5

Styracaceae

Pterostyrax hispida Siebold et Zucc

II

57

Su-6

Clethraceae

Clethra barbinervis Siebold et Zucc

II

41

Su-7

Aquifoliaceae

Ilex crenata Thunb. var. crenata

I

34

Shrub

Sh-1

Stachyuraceae

Stachyurus praecox Siebold et Zucc

III

30

Sh-2

Rosaceae

Cerasus nipponica (Matsum.) Ohle ex H.Ohba var. kurilensis (Miyabe) H.Ohba

II

-

Sh-3

Betulaceae

Corylus sieboldiana Blume var. sieboldiana

II

34

Sh-4

Celastraceae

Euonymus oxyphyllus Miq. var. oxyphyllus

II

41

Sh-5

Anacardiaceae

Toxicodendron trichocarpum (Miq.) Kuntze

II

38

Sh-6

Santalaceae

Buckleya lanceolata (Siebold et Zucc.) Miq

I

55

Sh-7

Ericaceae

Rhododendron wadanum Makino

I

38

Sh-8

Ericaceae

Rhododendron kaempferi Planch. var. kaempferi

II

63

Sh-9

Ericaceae

Elliottia paniculata (Siebold et Zucc.) Hook.f

II

35