532 



ROSACEAE 



perioles 4-7 cm. long, prickly; pedicels 1-5 cm. long, prickly; 

 calyx ovoid, rather densely prickly, 15-20 mm. long, the lobes 

 laciniate, short-pubescent inside, reflexed in fruit; petals nar- 

 rowly obovate, about 10 mm. long; receptacles and carpels 



pilose, the stones 2.5 mm. long, less prominently rugose. 



May-July. Woods; Honshu, Shikoku, Kyushu. 



2. Rubus lambertianus Ser. Shimabara-ichigo. 

 Branches erect, elongate, slightly scandent above, with rather 

 stout, flattened prickles, glabrous to short-pubescent; leaves 

 ovate or broadly so, 5-12 cm. long, 4-8 cm. wide, acuminate, 

 cordate at base, asperous and strigose-pilose especially on nerves 

 on upper side, with spreading hairs beneath, acutely serrulate, 

 shallowly 3- to 5-lobulate, the lateral lobes short, sometimes 

 obsolete, the petioles 2-4 cm. long, prickly and short-pubescent; 

 corymbs in a narrow terminal panicle 15-20 cm. long, short- 

 pubescent, the pedicels 3-10 mm. long; calyx with a short 

 tube, the lobes narrowly ovate-deltoid, 5-7 mm. long, acumi- 

 nate, ascending, with dense white tomentum on margin; 

 petals 4-5 mm. long, obovate-spathulate; stones about 1.5 mm. 



long, obliquely rugose. Oct.-Nov. Kyushu (Higo and 



Hizen Prov.) . Formosa and s. China. 



3. Rubus hakonensis Fr. & Sav. R. lambertianus subsp. 



ha\onensis (Fr. & Sav.) Focke ^Miyama-fuyu-ichigo, Mi- 



YAMA-icHiGo. Stems slender, woody, loosely prickly with 

 slender, scarcely flattened, spreading prickles, glabrous to short- 

 pubescent; leaves subcoriaceous, broadly ovate to ovate-orbicu- 

 lar, 5-8 cm. long, 4—7 cm. wide, short-acuminate, cordate at 

 base, glabrate on both sides or short-pubescent beneath, espe- 

 cially on nerves, and on nerves above, 3- to 5-lobulate, the lat- 

 eral lobules short or often obsolete, with short-awned teeth, the 

 petioles 3-7 cm. long; inflorescence rather densely few-flow- 

 ered, short-pubescent, the pedicels short; calyx pubescent, 7-8 

 mm. long, the tube short, the lobes nearly ovate, acuminate, 

 sometimes 2- to 4-lobed, densely short-pubescent on margin; 

 petals 4-5 mm. long, obovate; fruit red, the stones about 2 

 mm. long, obliquely rugose. Aug.-Oct. Woods in moun- 

 tains; Honshu (centr. distr. and westw.), Shikoku, Kyushu. 

 China (.?). 



4. Rubus sieboldii Bl. Horoku-ichigo. Branches 

 stout, elongate and subscandent above, with slender, spreading 

 or slightly recurved scattered prickles, short-puberulent and 

 with long spreading hairs; leaves coriaceous, broadly ovate to 

 ovate-orbicular, 7-25 cm. long, 6-20 cm. wide, cordate at base, 

 shallowly and obtusely lobulate and mucronate-toothed, with 

 deciduous woolly hairs on upper side, with yellowish tomen- 

 tum beneath, sparsely prickly on both sides, the petioles 2-7 

 cm. long, loosely prickly and densely puberulent; inflorescence 

 axillary, densely few-flowered, the pedicels very short, the 

 bracts large; calyx yellowish tomentose, the lobes broadly ovate 

 to elliptic, sometimes obtusely toothed; petals about 15 mm. 



long and as wide; fruit red. Mar .-June. Thickets and 



cut-over areas in low mountains and hills; Honshu (Izu Isls. 



and Kinki Distr.), Shikoku, Kyushu. s. China and Ryu- 



kyus. 



Rubus pseudosieboldii (Makino) Makino. R. buergeri 



var. pseudosieboldii Makino O-fuyu-ichigo. An alleged 



hybrid of Nos. 4 and 5, with characters intermediate between 

 the parents, especially the branches somewhat more slender 

 than in No. 4. 



5. Rubus buergeri Miq. Fuyu-ichigo. Shrub with 

 slender creeping stems sparingly armed with short slender 



slightly flattened prickles or often unarmed, densely short- 

 pubescent; leaves chartaceous, deep green, nearly orbicular, 

 5-10 cm. long and as wide, cordate, rounded to subacute at 

 apex, with short-awned small teeth, obsoletely 3- to 5-lobulate 

 with rounded depressed lobules or often unlobed, short-pubes- 

 cent on the nerves above, spreading-pilose beneath, the petiole 

 3-10 cm. long, densely pubescent; inflorescence axillary, densely 

 few-flowered, often aggregated in a terminal panicle, the flow- 

 ers short-pedicelled; calyx with long yellowish hairs, 8-10 mm. 

 long; petals 7-8 mm. long; fruit red, the stones about 2.5 mm. 

 long, pitted. Aug.-Nov. Woods in low mountains; Hon- 

 shu (Awa and Izu Prov. and westw.), Shikoku, Kyushu. 



s. Korea, Formosa, and China. 



6. Rubus hatsushimae Koidz. Tsukushi-aki-tsuru- 

 ichigo. Leaves ovate, acute, cordate, indistinctly incised- 

 lobed, acutely toothed, appressed-pubescent on upper side, 

 densely white-pubescent beneath, yellowish hairy on nerves 

 above, glandular-hairy on nerves beneath; calyx densely hairy 

 and glandular-pilose outside, the segments lanceolate-filiform, 



1- or 2-lacerate above; petals spathulate-obovate. Reported 



from Kyushu (Shimabara in Hizen Prov.). 



7. Rubus chamaemorus L. Horomui-ichigo. Un- 

 armed dioecious herb, with branched, slender rhizomes; stems 

 erect, 10-25 cm. long, simple, 2- or 3-leaved, slightly soft- 

 pubescent, with few scalelike leaves at base; leaves deep green, 

 reniform-orbicular, cordate, 4—7 cm. long and as wide, shal- 

 lowly (3-) 5-lobulate with depressed rounded lobes, nerves 

 above palmately impressed, loosely appressed-pubescent to gla- 

 brate on upper side, spreading-pubescent beneath especially on 

 nerves, the stipules membranous, 3-7 mm. long, obtuse; flow- 

 ers unisexual, solitary, terminal; calyx-lobes narrowly ovate 

 or elliptic, obtuse to rounded, soft-pubescent, sometimes with 

 a few glandular hairs; petals white, 8-10 mm. long; stones 



about 3 mm. long, obsoletely striate on upper portion. 



June-July. Sphagnum bogs; Hokkaido, Honshu (n. distr.). 

 Kuriles, Sakhalin, and n. Korea to Europe and N. Amer- 

 ica. 



8. Rubus peltatus Maxim. Hasu-no-ha-ichigo. Shrub 

 with rather stout glabrous often glaucous loosely prickly 

 branches, the prickles spreading, flattened, slightly curved; 

 leaves peltate, ovate-orbicular, cordate, 10-25 cm. long, 7-20 

 cm. wide, shallowly 5-lobed, the lobes acuminate, toothed, the 

 nerves beneath with spreading hairs, the stipules 10-15 mm. 

 long; receptacle densely short-pilose; flowers glabrous, solitary 

 on short branchlets; calyx-segments narrowly ovate; fruit 

 short-cylindric, about 4 cm. long; fruitlets very many, densely 

 spreading-puberulent; stones prominently pitted. May- 

 June. Mountains; Honshu (Mino, s. Shinano, and Echizen 

 Provs. and westw.), Shikoku, Kyushu; rather rare. 



9. Rubus microphyllus L. f. R. incisus Thunb.; R. 



pseudoincisus O. Kuntze; R. geijolius O. Kuntze ^Niga- 



icHiGO. Shrub with rather slender branches usually pur- 

 plish brown, with rather slender prickles, more or less glau- 

 cescent, the fertile branchlets scarcely elongate, 2- to 4-leaved 

 toward base; leaves ovate to orbicular, 2-5 cm. long, 1.5-4 cm. 

 wide, rounded to acute at apex, rounded to cordate at base, 

 usually shallowly 3-lobed, toothed, distinctly glaucous beneath, 

 the petioles sometimes slightly pubescent on the upper side; 

 flowers l(-3) on reddish purple pedicels 1-2.5 cm. long; 

 calyx glabrous, 5-7 mm. long, reddish purple, the segments 

 densely white-tomentose inside; petals white, 10-12 mm. long; 



