704 



Ericaceae 



stamens 4 or 5, included, the anthers longitudinally split; ovary subglobose, 2- to 4-locular; style short, the stigma capitate; ovules 



many in each locule; capsules subglobose, septicidal, erect, the valves 2-4, ovate; seeds many, ovoid. One species, in Arctic and 



alpine regions of the N. Hemisphere. 



1. Loiseleuria procumbens (L.) Desv. Azalea procum- 



bens L.; Chamaeledon procumbens (L.) Link Minezuo. 



Branches glabrous; leaves spreading, narrowly oblong to 

 broadly lanceolate, 6-12 mm. long, 2.5-3 mm. wide, obtuse, 

 acute at base, entire, glabrous and with a groove above, deep 

 green, densely white-puberulent except on the raised midrib, 

 the petioles very short, ascending, white-puberulent on upper 

 side; flowers 4-5 mm. across, pale rose, glabrous, the pedicels 



erect, glabrous, 4-10 mm. long; calyx-lobes broadly lanceolate, 

 obtuse, about 2 mm. long; corolla 4- to 5-lobed, the lobes 

 deltoid-ovate; capsules ovate-globose, acute, 3-4 mm. long, the 



persistent style slighriy shorter than the capsule. July. Dry 



alpine slopes and rocky cliffs; Hokkaido, Honshu (centr. and 



n. distr.); rather common. Kuriles, Sakhalin, and widely 



distributed in alpine and Arctic regions of the N. Hemisphere. 



8. CASSIOPE D. Don Iwa-hige Zoku 



Dwarf evergreen shrubs, the branches often 4-angled, densely scaly-leaved; leaves small, decussate, triangular, scalelike or 

 linear, flat or grooved in the center; flowers solitary, axillary, white or pink, nodding, bracteate, pedicellate; calyx-lobes 4 or 5, 

 free, imbricate in bud; corolla campanulate, the short lobes often recurved; stamens 4-10(-12), included, the anthers with 2 awn- 

 like terminal dorsal appendages opening by pores; ovary 4- or 5-locular, the ovules many; capsules globose, 4- or 5-valved, 

 loculicidally dehiscent, erect; seeds often elongate at both ends. Few species, in Arctic and alpine regions of the N. Hemis- 

 phere. 



1. Cassiope lycopodioides (Pall.) D. Don. Andromeda 



lycopodioides Pall. Iwa-hige. Decumbent much-branched 



evergreen shrub; branches 4-angled, very slender, densely 

 leafy; leaves scalelike, deep green, appressed to the branches 

 and branchlets, ovate, 1.5-2 mm. long, obtuse, with inflexed 

 hyaline margins, convex on the back; flowers solitary, axillary, 

 5-merous, nodding or pendulous, pink, the pedicels 1.5-3 cm. 



long; calyx-lobes ovate, about 2 mm. long, obtuse, with hyaline 

 margins; corolla about 8 mm. long, urceolate-campanulate; 



capsules globose, about 3 mm. in diameter, erect. July. 



Alpine rock-cliffs and crevices; Hokkaido, Honshu (centr. and 

 n. distr.) . Kuriles, Sakhalin, Kamchatka, and n. Pacific re- 

 gions. 



9. ARCTERICA Cov. Komeba-tsugazakura Zoku 



Dwarf evergreen shrub; leaves thick-coriaceous, verricillate in 3's, small; flowers in short terminal racemes, short-pediceled, 

 bracteate and 2-bracteolate; calyx 5-sected, the segments narrowly ovate, obtuse; corolla urceolate, small, nodding, with 5 small 

 lobes imbricate in bud; stamens 10, the anthers opening by pores, with 2 awnlike appendages at base on back; ovary 5-locular; 

 capsules erect, loculicidal; style columnar, the stigma 5-lobed; seeds minute, fusiform-ovoid. One species. 



1. Arcterica nana (Maxim.) Makino. Andromeda nana 

 Maxim.; Cassiope oxycoccoides A. Gray; Pieris nana (Maxim.) 

 Makino; Arcterica oxycoccoides (A. Gray) Cov. Komeba- 

 tsugazakura. Erect shrub, 5-10 cm. high with sparsely 

 branched erect branches 1-2 mm. thick, from subterranean 

 creeping stems or stolons; leaves short-petiolate, spreading, 

 ovate-oblong to oblong, 5-10 mm. long, 3-5 mm. wide, obtuse 

 with a mucronate gland at apex, flat, entire, slightly recurved 

 on margins, deep green and lustrous with die midrib im- 



pressed above, paler and glabrous beneath; flowers nodding, 

 often in 3's, the bracts persistent, coriaceous, narrowly ovate, 

 3-4 mm. long, the bracteoles and calyx-segments slightly 

 smaller and obtuse; corolla 4-5 mm. long; capsules subglobose, 

 about 3.5 mm. across, minutely puberulent, slightly longer 

 than the persistent style, depressed at apex. July. Dry al- 

 pine slopes and rocky cliffs; Hokkaido, Honshu (centr. and n. 

 distr.) ; rather rare. ^Kuriles and Kamchatka. 



10. HARRIMANELLA Cov. Ji-mukade Zoku 



Dwarf evergreen slender procumbent shrubs with densely leafy branches; leaves alternate, entire, linear, thick, glabrous or 

 sometimes ciliate; flowers solitary and terminal, one-sided, bractless or the pedicels bracteate; calyx-lobes 5, free, elliptic, imbricate 

 in bud; corolla broadly campanulate, deeply 5-lobed, the lobes imbricate in bud; stamens 10, with 2 dorsal awnlike terminal ap- 

 pendages on the apical part of the anther; styles short, gradually thickened at base; ovary 5-locular; capsules globose, erect, 

 loculicidally dehiscent. Two species, in Arctic and subarctic regions of the N. Hemisphere. 



1. Harrimanella stelleriana (Pall.) Cov. Andromeda 

 stelleriana PaW.; Cassiope stelleriana (Pall.) DC- — ■ — Ji-mukade. 

 Branches wiry and elongate, prostrate, glabrous or slightly 

 puberulent; leaves thick, spreading, narrowly obovate-oblong 

 or broadly oblanceolate, 2-3 mm. long, about 1 mm. wide, 

 very obtuse, upper side flat, lustrous, deep green, glabrous, 

 sessile; flowers solitary and terminal, ebracteate, the pedicels 



3-5 mm. long, puberulent; calyx lobes obovate-oblong, about 

 2.5 mm. long, coriaceous, deciduous in fruit, rounded, reddish, 

 glabrous; corolla 4-5 mm. long; capsules globose, about 3.5 



mm. in diameter. July-Aug. Dry rocky slopes, alpine; 



Hokkaido, Honshu (centr. distr.); rare. Kuriles, Kam- 

 chatka, and N. America. 



