Ericaceae 



703 



1. Bryanthus gmelinii D. Don. Andromeda bryantha 



L.; Menziesia bryantha (L.) S\v.; B. musciformis Nakai 



Chishima-tsucazakura. Plant 2-3 cm. high, the branches 

 minutely pubescent; leaves coriaceous, lustrous, 3-4 mm. long, 

 nearly 1 mm. wide, lenticular in cross section, obtuse, the mar- 

 gin often obscurely glandular-puberulent, the midrib im- 

 pressed on both sides, vvhite-puberulent beneath while young; 



inflorescence 2-4 cm. long, whitc-puberulent, densely few- 

 flowered; flowers 5-6 mm. across; calyx-segments ovate, obtuse, 

 about 1 mm. long; corolla lobes oblong, about 3 mm. long; 



capsules about 4 mm. across. July-Aug. Dry gravelly and 



rocky alpine slopes; Hokkaido, Honshu (centr. and n. distr.); 

 rare. Kuriles and Kamchatka. 



5. PHYLLODOCE Salisb. Tsugazakura Zoku 



Small evergreen shrub; leaves many, alternate, coriaceous, linear, subobtuse, minutely toothed, the margins strongly revolute; 

 flowers few, axillary, nearly terminal, 2-bracteate; calyx 5-lobed, acuminate; corolla urceolate or campanulate, with 5 short lobes; 

 stamens 10, included, the filaments filiform, the anthers opening by obovate pores; styles erect, the stigmas 5-lobed; capsules 



ovoid to depressed-globose, 5-locular, septicidally dehiscent, 5-valved, the valves bifid at apex; seeds many, ovoid. Few 



species, in alpine and Arctic regions of the N. Hemisphere. 



lA. Corolla campanulate; calyx-lobes ovate, minutely ciliate, glabrous on the back; capsules depressed -globose LP. nipponica 



IB. Corolla urceolate. 



2A. Calyx -lobes ovate, glabrous on back, minutely ciliate; corolla pmk 2. P. X alpha 



2B. Calyx-lobes narrowly ovate to broadly lanceolate, glandular-pilose on back especially toward the base. 



3A. Flowers pale yello%vish green; calyx-lobes green, broadly lanceolate; anthers yellow, the filaments glabrous 3. P. aleiitica 



33. Flowers purplish; calyx-lobes purplish, narrowly ovate; anthers purplish, the filaments ciliate at base 4. P. caerulea 



1. Phyllodoce nipponica Makino. P. taxi folia sensu 

 auct. Japon., non Salisb.; P. amabilis Stapf; P. empetrijormis 

 var. amabilis (Stapf) Rehd.; P. nipponica var. amabilis (Stapf) 



Stoker Tsugazakura. Branched, suberect, densely leafy 



small shrub 7-20 cm. high, the branches angular, white-pu- 

 berulent in the grooves; leaves spreading, strongly revolute and 

 flattened, sessile, broadly linear, 5-8 mm. long, about 1.5 mm. 

 wide, abrupdy obtuse, with minute gland-tipped teeth while 

 young, the midrib impressed on upper side, white-puberulent 

 beneath; flowers nodding, rose to white, the pedicels 2-2.5 cm. 

 long, glandular-pilose and white-puberulent; calyx-lobes ovate, 

 glabrous, minutely ciliolate, 1.5-2 mm. long; corolla 6-7 mrn. 

 long, campanulate. June-Aug. Rocky places, alpine; Hon- 

 shu (centr. distr. and westw.), Shikoku. 



Var. oblongo-ovata (Tatew.) Toyokuni. P. tsiigaefolia 

 var. oblongo-ovata Tatew.; P. nipponica var. tsugacjolia (Na- 

 kai) Ohwi; P. tsiigaefolia Nakai; P. nipponica subsp. tsiigae- 

 folia (Nakai) Toyokuni Nagaba-tsugazakura. Plant 



larger; leaves 8-12 mm. long, about 2 mm. across, the pedicels 



2.5-3.5 cm. long. July-Aug. Alpine; Hokkaido, Honshu 



(n. distr.). 



2. Phyllodoce X alpina Koidz. P. hybrida Nakai 



Ko-tsucazakura. Small evergreen shrub, the branches puber- 

 ulent in the grooves; leaves coriaceous, lustrous, linear, 5-7 

 mm. long, slighdy less than 1.5 mm. wide, minutely toothed, 

 abrupdy subobtuse, glabrous, the midrib white-puberulent be- 

 neath while young; flowers nodding, pink, the pedicels 2-5, 

 erect, 2-3 cm. long, spreading glandular-hairy and white-pu- 

 berulent; calyx-lobes ovate, 2.5-3 mm. long, subacute, glabrous, 

 ciliolate; corolla urceolate, 7-8 mm. long. July-Aug. Al- 

 pine; Honshu (centr. distr.); very rare. Hybrid of Nos. I 



and 3. 



3. Phyllodoce aleutica (Spreng.) A. Heller. Menziesia 

 aleutica Spreng.; P. pallasiana D. Don; P. taxi folia var. aleutica 



(Spreng.) Herd. Ao-no-tsugazakura. Small evergreen 



ascending or decumbent shrub 10-30 cm. high, forming dense 

 mats; branches densely leafy, puberulent; leaves linear, 8-14 

 mm. long, about 1.5 mm. wide, flattened, abruptly obtuse, ses- 

 sile, glabrous, grooved on upper side, minutely toothed, the 

 teeth glandular while young, the midrib beneath elevated 

 and white-puberulent; flowers 4-7, nodding, the pedicels 2.5^ 

 cm. long, puberulent and glandular-pilose; calyx-lobes broadly 

 lanceolate, 4-5 mm. long, densely glandular-pilose especially 

 toward the base on back; corolla urceolate, 7-8 mm. long, gla- 

 brous, pale yellowish green. July-Aug. Wet alpine slopes; 



Hokkaido, Honshu (centr. and n. distr.) ; rather common espe- 

 cially on Japan Sea side. Sakhalin, Kuriles, Kamchatka, 



and Alaska. 



4. Phyllodoce caerulea (L.) Bab. Andromeda caerulea 



L.; A. taxifolia Pall.; P. taxifolia (Pall.) Salisb. Ezo-no- 



tsugazakura. Evergreen decumbent much-branched shrub 

 10-25 cm. high, with puberulent densely leafy branchlets; 

 leaves linear, 7-12 mm. long, about 1.5 mm. wide, abruptly 

 obtuse, minutely toothed, glabrous, grooved on upper side, the 

 midrib raised and white-puberulent beneath; flowers 2-5, nod- 

 ding, the pedicels 2-2.5 cm. long, glandular-pilose and loosely 

 puberulent; calyx-lobes narrowly ovate, purplish, about 4 mm. 

 long, densely glandular-pilose, especially toward the base on 

 back; corolla urceolate, 7-8 mm. long, purplish, loosely glandu- 

 lar-puberulent externally, or glabrous. July-Aug. Alpine; 



Hokkaido, Honshu (n. distr.). Northern or Arcdc regions 



of the N. Hemisphere. 



7. LOISELEURIA Desv. Minezuo Zoku 



Depressed or prostrate evergreen shrub with decumbent densely leafy branches; leaves small, coriaceous, thick, opposite, nar- 

 row, lustrous, with revolute margins; flowers small, white to rose, 4- to 5-merous, erect, in groups of 1 to 5, terminal on the 

 branchlets, pedicelled; calyx 4- to 5-parted, coriaceous; corolla broadly campanulate, the lobes 4 or 5, rounded, imbricate in bud; 



