710 



Ericaceae 



axillare var. obovoideum Takeda Nagami-kuro-usugo. 



Berries obovoid. Forma platyanthum (Nakai) Hara. V. 



axillare var. platyanthum Nakai. Miyama-kuro-usugo. 



Corolla depressed-urceolate. 



Var. coriaceum H. Boiss. V. axillare var. coriaceum (H. 

 Boiss.) Hara; V. chamissonis sensu auct. Japon., non Bong. 

 ^Ezo-KURo-usuGO. Lcavcs broadly ovate, serrulate, espe- 

 cially on lower half. Occurs with the typical phase. 



Forma angustifolium (Nakai) Ohwi. Nagaba-kuro-usugo. 

 Narrow-leaved phase. 



6. Vaccinium shikokianum Nakai. V. ovdifolium var. 



coriaceum H. Boiss. pro parte ^Maruba-usugo, Shikoku- 



usuGO. Closely resembles the preceding; branches gray- 

 brown, glabrous, acutely angled; leaves subcoriaceous, broadly 

 ovate to ovate-orbicular, or sometimes broadly elliptic, 1.5-2.5 

 cm. long, 1-2.5 cm. wide, rounded to obtuse, sometimes shal- 

 lowly cordate at base, serrulate, glabrous, glaucous and with 

 prominently raised veinlets beneath, subsessile; flowers solitary, 

 opening with the leaves, pale greenish, nodding, the pedicels 

 5-7 mm. long, naked; calyx-limb short; corolla urceolate, about 

 5 mm. long; awns of the anthers slightly exceeding the anther 

 length; berries blue, globose, about 8 mm. in diameter. Al- 

 pine; Honshu (n. distr. and Japan Sea side of centr. distr.) ; 

 rare. 



7. Vaccinium uliginosum L. Kuro-mame-no-ki. 

 Branched deciduous shrub 30-70 cm. high; stems to 1-2 cm. 

 across, the branches terete, glabrous, brownish; leaves thick- 

 chartaceous, obovate to obovate-orbicular, rarely elliptic, 1.5- 

 2.5 cm. long, 1-2 cm. wide, rounded to very obtuse, acute to 

 subcuneate at base, entire, whitish and with raised veinlets be- 

 neath, the petioles 1-2 mm. long; flowers few, glabrous, the 

 pedicels 5-7 mm. long; calyx-teeth deltoid; corolla 5-7 mm. 

 long, urceolate, greenish to pinkish; berries globose, 6-7 mm. 

 in diameter, blue-black, bloomy. June-July. Alpine; Hok- 

 kaido, Honshu (centr. and n. distr.). Mountainous regions 



of the N. Hemisphere. 



8. Vaccinium yakushimense Makino. Aku-shiba-mo- 

 DOKi. Nearly glabrous branched deciduous shrub, branches 

 green, slightly flattened, with a deep groove on each side; 

 leaves lanceolate to narrowly ovate, 3-6 cm. long, 1-1.5 cm. 

 wide, long-acuminate, acute to subrounded at base, serrulate, 

 glabrous except the midrib puberulent on the upper side; 

 flowers 1 or 2 near the top of last year's branchlets, the pedi- 

 cels glabrous, about 3 mm. long; corolla small, urceolate; ber- 

 ries obovoid-globose, purple-black, about 9 mm. in diameter. 

 High mountains; Kyushu (Yakushima) ; rare. 



9. Vaccinium hirtum Thunb. V. buergeri Miq., pro 

 parte; V. buergeri var. minor Miq.; V. pterocarpum Nakai; V. 

 \iusianum Koidz.; V. hirtum var. \iusianum (Koidz.) Hara; 

 v. motosu\eanum Koidz.; V. usuno\i Nakai; V. buergeri var. 



usuno\i (Nakai) Koidz. Usu-no-ki, Kakumi-su-no-ki. 



Much-branched erect shrub to 1 m. high, the young branchlets 

 green, rather slender, curved-puberulent, obscurely 2-grooved; 

 leaves slightly bitter in taste, membranous, narrowly to broadly 

 ovate, sometimes broadly lanceolate, 2-5 cm. long, 1-2.5 cm. 

 wide, acuminate, usually rounded at base, serrulate, vivid 

 green and sometimes reddish, usually rounded at base, puberu- 

 lent especially the midrib on upper side, white-pubescent be- 

 neath near base; flowers 1-3, on shoots of last year, greenish 

 to pinkish; calyx 5-toothed; berries obovoid-globose or subglo- 



bose, red. ^May. Thickets and pine woods in hills and low 



elevations in the mountains; Hokkaido, Honshu, Shikoku, 



Kyushu; rather common and very variable. Forma lasio- 



carpum (Koidz.) Ohwi. V. hirtum. var. lasiocarpum Koidz.; 

 V. lasiocarpum (Koidz.) Nakai Ke-usu-no-ki. Promi- 

 nently white-pubescent throughout. 



10. Vaccinium smallii A. Gray. V. hirtum var. smallii 



(A. Gray) Maxim. Oba-su-no-ki. Much-branched erect 



shrub about 1 m. high, the branches terete, the branchlets slen- 

 der, often shallowly 2-grooved, usually curved-puberulent; 

 leaves membranous, slighdy acid in taste, oblong, elliptic, or 

 broadly ovate, 3-8 cm. long, 1.5-3 cm. wide, acuminate to 

 acute, acute to obtuse at base, serrulate, puberulent on the mid- 

 rib on upper side and somewhat so on the midrib beneath, the 

 petioles 1-1.5 mm. long; flowers 1-3, on the shoots of last 

 year, nodding, pedicellate, greenish white to pinkish; calyx- 

 tube not angled, the teeth oval to obtuse-deltoid, commonly 

 with few minute sdpitate glands on margin; corolla campanu- 

 late, 6-7 mm. long; berries globose, 7-8 mm. in diameter, not 



angled, purple-black, the receptacle narrow. Apr.-May. 



Thickets and sunny places in mountains; Hokkaido, Honshu 

 (centr. and n. distr.) ; rather common. s. Kuriles and Sa- 

 khalin. 



Var. glabrum Koidz. V. politum Koidz.; V. hirtum var. 

 versicolor Koidz.; V. versicolor (Koidz.) Nakai; V. versi- 

 color var. glabrum (Koidz.) Hara; V. versicolor var. minus 



(Nakai) Hara; V. \ansaiense Koidz. Su-no-ki. Leaves 



rather small, 2-4 cm. long, 1-2 cm. wide, usually less hairy. 



Thickets and pine woods in hills and low elevations in the 



mountains; Honshu, Shikoku. 



11. Vaccinium oldhamii Miq. Natsu-haze. Erect 

 shrub 1-3 m. high, the branches dark brown, the branchlets 

 gray-brown, short curved-puberulent and stipitate-glandular 

 while young, terete, rather slender; leaves elliptic, oblong or 

 ovate, 3-8 cm. long, 2-4 cm. wide, acute to short-acuminate, 

 acute or rarely rounded at base, serrulate with glandular- 

 tipped teeth, puberulent on midrib and often scattered coarse 

 hairy on upper side, pale green and coarsely pilose on midrib 

 beneath, with 2 sessile glands on the margin near base, the 

 petioles 1-2.5 mm. long, puberulent; racemes 3-6 cm. long, 

 terminal on young new shoots, rather densely many-flowered, 

 curved-puberulent and stipitate glandular, the bracts lanceo- 

 late to narrowly ovate, 4-7 mm. long, acuminate, somewhat 

 persistent in fruit, the pedicels 1-3 mm. long; calyx-teeth de- 

 pressed-deltoid; corolla campanulate, 4-5 mm. long, pale yel- 

 low-brown and reddish, glabrous, 5-toothed; berries black, 

 bloomy, globose, 6-7 mm. in diameter, the calyx-teeth per- 

 sistent. May-June. Thickets and woods at low elevations 



in the mountains; Hokkaido, Honshu, Shikoku, Kyushu; 

 rather common. s. Korea and China. 



12. Vaccinium ciliatum Thunb. V. santanense Koidz. 



Arage-natsu-haze. Large erect shrub, the branches 



dark brown or gray brown, terete, short-puberulent while 

 young; leaves elliptic, obovate-elliptic, or broadly ovate, 3-5 

 (-8) cm. long, 2-3 (-4.5) cm. wide, acute to subobtuse, acute 

 or rarely subrounded at base, entire, puberulent on midrib on 

 upper side, spreading coarse-hairy beneath, the petioles 1-3 

 mm. long; racemes elongate, 3-7 cm. long, terminal on new 

 shoots, rather densely many-flowered, the bracts narrowly 

 ovate to lanceolate, the pedicels 3-4 mm. long, puberulent; 

 berries globose, black, bloomy, 5-7 mm. in diameter. Hon- 

 shu (Tango, Suwo, and Nagato Prov.), Kyushu. 



13. Vaccinium sieboldii Miq. V. donianum var. ellip- 

 tica Miq.; V. longeracemosum Fr. & Sav.; V. nagurae Makino; 



