536 



ROSACEAE 



R. occidentalis sensu auct. Japon., non L.; R. idaeus var. 



exsuccus Fr. & Sav. ^Kuro-ichigo. Shrub, the branches 



with rather stout slightly flattened prickles, the flowering 

 branchlets slightly elongate, prickly and short-pubescent; leaf- 

 lets 3, glabrous to slightly appressed-pubescent on upper side, 

 with short white tomentum beneath, duplicately incised-ser- 

 rate, abruptly acuminate, the lateral ones obliquely obovate, the 

 terminal larger, ovate-orbicular, 6-12 cm. long, 4-8 cm. wide, 

 the lateral nerves sparingly ascending-pilose beneath, the 

 petioles prickly and pubescent; inflorescence 5- to 10-flowered, 

 densely white-pubescent, the pedicels short; calyx-lobes broadly 

 lanceolate, caudate-acuminate; petals erect, about half as long 

 as the calyx-segments, 4-5 mm. long, broadly obovate; fruit 

 globose, purplish black, the fruitlets nearly glabrous; stones 



prominently pitted. June-July. Hokkaido, Honshu, Shi- 



koku, Kyushu. China. 



Var. adenothrix Momiyama. Shimokita-ichigo. Stems, 

 petioles, and inflorescence with short glandular hairs. Hon- 

 shu (Mutsu Prov.). 



32. Rubus yoshinoi Koidz. Kibi-nawashiro-ichigo. 

 Shrub, the branches with rather flattened prickles, the flower- 

 ing branchlets elongate, slighdy prickly and pubescent; leaflets 

 3, acuminate to very acute, sparingly appressed-pubescent to 

 glabrous and green above, with appressed-pubescence on 

 nerves and whitish (but later becoming green) tomentose be- 

 neath, irregularly doubly acute-toothed, the terminal leaflet 

 slighdy larger, rhombic-oblong to ovate, 5-10 cm. long, 2.5-5 

 cm. wide, obtuse to nearly rounded at base, the petioles thinly 

 pubescent and prickly; inflorescence terminal, few-flowered, 

 the pedicels short; calyx thinly pubescent outside, the lobes nar- 

 rowly ovate, abruptly caudate-acuminate, densely puberulent 

 inside and on the margin; petals pinkish, obovate, 5-7 mm. 



long; carpels puberulent. May-June. Honshu (Iwaki and 



Shinano Prov. and Chugoku Distr.), Kyushu; rare. 



33. Rubus parvifolius L. R. triphyllus Thunb.; R. 



chinensis Thunb. Nawashiro-ichigo. Shrub, the branches 



with few rather slender short prickles flattened below, elon- 

 gate and branching, the flowering branchlets elongate, pubes- 

 cent, thinly prickly; leaflets 3, appressed-pubescent and often 

 glabrate above, usually pubescent on nerves, with short white 

 tomentum beneath, coarsely double-toothed, the lateral leaflets 

 smaller, broadly obovate to cuneate-orbicular, acute to rounded, 

 the terminal rhombic-orbicular to broadly obovate, 3-5 cm. 

 long and as wide; inflorescence several-flowered, densely 

 pubescent; calyx 5-8 mm. long, usually prickly, the lobes nar- 

 rowly ovate, acuminate, with short white tomentum especially 

 prominent on the inner side; petals pale pink, erect and con- 

 nivent above, broadly obovate, 5-7 mm. long; fruit red, glo- 

 bose, the fruiriets puberulent. May-July. Waste places and 



roadsides in lowlands and low mountains; Hokkaido, Honshu, 

 Shikoku, Kyushu; very common. 



Var. concolor (Koidz.) Makino & Nemoto. R. triphyllus 



var. concolor Koidz. Ao-nawashiro-ichigo. Leaves green, 



not tomentose. Rare. Occurs with the typical phase. 



Rubus adenochlamys Focke. Kara-nawashiro-ichigo. 



Resembling No. 33 but with glandular calyx and pedicels. 



Reported to occur in Honshu (Mount Ibuki in Oomi Prov.). 

 China. 



34. Rubus phoenicolasius Maxim. Ebigara-ichigo, 

 Urajiro-ichigo. Rather stout shrub widi slighdy flattened 

 spreading prickles and long dense glandular hairs on branches, 

 inflorescence, and leaf-axis, the flowering branchlets elongate. 



prickly, glandular-pilose and pubescent; leaflets 3, green and 

 glabrous to thinly pubescent on upper side, thinly prickly and 

 glandular-pilose on nerves, with white-woolly tomentum be- 

 neath, doubly incised-dentate, the lateral leaflets broadly ovate, 

 the terminal larger, ovate-orbicular, short-acuminate, subcor- 

 date at base, 5-8 cm. long and as wide; corymbs terminal and 

 in the upper axils, in a large terminal panicle, usually not 

 prickly, glandular-pilose and short-pubescent, the pedicels 

 short; calyx 15-20 mm. long, the lobes lanceolate, gradually 

 narrowed at tip, caudate, glandular-pilose and short-pubescent, 

 erect, connivent above; petals obovate, 4-5 mm. long, pale 

 pink; fruit globose, red, the fruitlets glabrous; stones about 2 



mm. long, pitted. June-July. Waste places and clearings 



in lowlands and mountains; Hokkaido, Honshu, Shikoku, 

 Kyushu; common. ^Korea and China. 



35. Rubus pedatus Smith. Kogane-ichigo. Delicate 

 slender herb, without prickles; stems filiform, much-elongate, 

 creeping, rooting from the nodes, scattered-pilose while young; 

 flowering branchlets in axils of radical leaves, 5-12 cm. long, 

 erect, 1- or 2-leaved; leaves radical, 3-foliolate, green, mem- 

 branous, thinly appressed-pilose on upper side, nearly glabrous 

 beneath, the terminal leaflet slightly larger, rhombic-ovate, 

 1.5-3 cm. long, 1-2 cm. wide, obtuse to rounded at apex, 

 cuneate at base, double or incised-toothed, the lateral leaflets 

 often 2-cleft or divided, the petioles thinly short-pubescent, 

 rarely also widi short glandular hairs, the stipules elliptic to 

 ovate, brown, scarious, broadly obtuse to rounded at apex, 2-4 

 mm. long; scapes 3-10 cm. long, short-pubescent, sometimes 

 with glandular hairs; flowers solitary; calyx 8-12 mm. long, 

 the lobes lanceolate, often toothed on upper margin, mem- 

 branous; petals white, 6-7 mm. long; fruitlets few, yellowish 

 red, glabrous; stones 3.5 mm. long, raised reticulate on the 

 upper half. June-July. Damp coniferous woods in moun- 

 tains; Hokkaido, Honshu (centr. and n. distr.). N. Amer- 

 ica. 



36. Rubus ikenoensis Lev. & Van't. R. japonicus 

 Maxim., non L.; R. defensus Focke; R. tschonos\ii Prokhan. 



GoYo-iCHiGO, ToGE-GOYO-icHiGO. Perennial herb with 



woody base, the prickles very slender, spreading, bristlelike, 

 the shoots radical, at first short, erect, afterward elongate, 

 arcuate and decumbent, prickly, the flowering branchlets in 

 the lower axils of the shoots, erect, rather elongate, thinly 

 prickly or sparingly short-pubescent; leaflets 5, pedately ar- 

 ranged, narrowly rhombic-obovate, acuminate, cuneate at base, 

 doubly incised-toothed, sometimes scattered appressed-pilose 

 on upper side and on nerves beneath, green, the stipules 6-8 

 mm. long, lanceolate, acuminate; flowers 1 or 2, terminal, nod- 

 ding, white; calyx 15-20 mm. long, short-pubescent and 

 prickly, thinly mixed with glandular-hairs, the lobes elongate 

 above; fruit red, the stones about 2.5 mm. long, irregularly 

 and obliquely rugose. May-July. Woods in high moun- 

 tains; Honshu (n. and centr. distr.). 



Rubus kenoensis Koidz. Kireba-kuma-ichigo, is an al- 

 leged hybrid of No. 36 and R. crataegifolius (No. 10) . 



37. Rubus pseudojaponicus Koidz. R. triflorus var. ja- 

 ponicus Maxim. Hime-goyo-ichigo, Toge-nashi-goyo- 



icHiGo. Pubescent unarmed herb closely resembling the 

 preceding species, the shoots more slender; stipules acute to 

 subacute; calyx-lobes reflexed; petals narrowly ovate, white, 



about 10 mm. long; stones indistincdy rugose. May-July. 



Woods in high mountains; Hokkaido, Honshu (n. and centr. 

 distr.). 



