Lythraceae 



649 



seeds obliquely oblong, inclusive of the wing, about 6 mm. 



long. July-.^ug. Kyushu (Yakushima and Tanegashima). 



Ryukyus and Formosa. 



Lagerstroemia indica L. Saru-suberi. Branchlets 4- 

 winged; leaves obtuse to rounded at apex; flowers large; caly.x- 

 tube inconspicuously nerved. Introduced from China. Much 

 planted as an ornamental in gardens. 



Lagerstroemia X amabilis Makino. Ko-saru-suberi. 

 Hybrid of L. indica X L. subcostata. Sometimes cultivated. 



2. Lagerstroemia fauriei Koehne. Y.\kushim.\-s.\ru-su- 

 BERi. Deciduous tree with glabrous somewhat terete 



branches; leaves coriaceous, oblong, sometimes ovate, 8-10 cm. 



long, about 5 cm. wide, slightly obtuse, subrounded and 

 abrupdy petioled at base, glabrous except for axillary tufts of 

 hairs beneath, with 8-13 pairs of lateral nerves, the veinlets 

 prominently reticulate beneath, the petioles 8-10 mm. lung; 

 panicles 5-10 cm. long, slighdy narrower than the length, 

 rather densely flowered, glabrous, the branches 4-angled, the 

 pedicels 3-7 mm. long; flowers 6-merous; calyx about 4.5 mm. 

 long and as wide, 12-nerved, die lobes deltoid, without ap- 

 pendages; limb of the petals 4 mm. long, about as long as the 

 claw, 4-angled, orbicular, cordate; stamens 30-36; ovary 6-locu- 

 lar; style about 8-9 mm. long. Kyushu (Yakushima). 



2. AMMANNIA L. Hime-miso-h.'vgi Zoku 



Annual herbs growing in wet places or aquatic; stems and branches often 4-angled; leaves opposite, sessile, 1-nerved; in- 

 florescence cymose, sessile or pedunculate, the bracteoles small, membranous, hyaline or white; flowers small, 4(-6)-merous; 

 calyx-tube campanulate or urceolate, often becoming globose or obovoid in fruit; stamens 2-8, inserted on the tube; ovary in- 

 completely 2- to 4-locular or 1-locular; capsules globose or ellipsoidal, often slighdy exserted from the calyx-tube, thinly mem- 

 branous, irregularly dehiscent; seeds numerous, minute. About 20 species, mostly in the Tropics, also warm-temperate N. 



America and e. Asia. 



lA. Flowers petaliferous; leaves more or less auricled at base. 



2A. Capsules exserted from the calyx, 2-2.5 mm. across \. A. miilliflora 



2B. Capsules not exserted from the calyx, 3.5-4 mm. across 2. A. coccinca 



IB. Flowers apetalous; leaves narrowed at the base; capsules 1-1.5 mm. across, exserted from the calyx 1>. A. baccijera 



1. Ammannia multiflora Roxb. A. parviflora DC; A. at base, entire; flowers few, in dense axillary fascicles, the 



multiflora var. parviflora (DC.) Koehne; A. japonica Miq. pedicels less than 1 mm. long; calyx about 2.5 mm. long, 



HiME-Miso-H.^ci. Annual, 20-30 cm. high; stems erect, short-tubulose at anthesis, hemispherical, 3-4 mm. long in fruit, 



4-angled, short-branched; leaves spreading, broadly linear to whitish with green nerves, teeth short, green; petals minute, 



lanceolate-oblong, 2.5-5 cm. long, 3-12 mm. wide, or 7-20 mm. purplish, obovate; stamens slightly exserted; capsules globose, 



long, 1-4 mm. wide in those of the branches, acute to sub- not exserted from the calyx, 3.5^ mm. across; styles about 1.5 



obtuse, slighdy narrowed and rounded at the clasping and mm. long. Kyushu (Hizen Prov.) ; introduced. N. and 



auriculate base; flowers few, in dense sessile axillary cymes, S. America, Philippines, Micronesia, and Ryukyus. 



the pedicels about as long as the flowers; flowers about 1.5 mm. 3. Ammannia baccifera L. A. indica Lam.; A. discolor 



across; calyx obconical, obsoletely 4-angled, the lobes deltoid; Nakai Shima-miso-hagi, Nagato-miso-hagi. Erect gla- 



petals minute, whirish; stamens 4; capsules globose, 2-2.5 mm. brous much-branched annual; stems 10-50 cm. long, 4-angled; 



across, red-brown, lustrous, half-exserted from the calyx; styles leaves membranous, oblanceolate to linear, 5-50 mm. long, 



distinct, slighdy less than 1 mm. long, the sdgmas rather 1-10 mm. wide, narrowed at both ends, entire; flowers few, 



thickened; seeds minute, brown. Sept.-Nov. Wet places in in dense axillary fascicles, the pedicels 0.2-1.5 mm. long, gla- 



lowlands, especially in paddy fields; Honshu, Shikoku, Kyushu. brous; calyx 1-2 mm. long, the lobes 0.5-0.7 mm. long; petals 

 Tropics and subtropics of Africa, Asia, and Australia. absent; stamens 4, the anthers subglobose; styles 0.3-0.5 mm. 



2. Ammannia coccinea Rottb. Hosoba-hime-miso-hagi. long; capsules globose, 1-1.5 mm. across, slighdy exserted from 



Glaucescent glabrous annual; stems simple or branched at base, the calyx. Paddy fields; Honshu (Nagato Prov.); intro- 



quadrangular, 30-50 cm. long; leaves broadly linear to lanceo- duced. Africa, se. Asia, Europe, and Australia. 



late, 3-5 cm. long, 3-6 mm. wide, acute, auriculate and sessile 



3. LYTHRUM L. 



Miso-HAGi Zoku 



Annuals, perennials, or rarely half-shrubs; leaves opposite, verticillate, or rarely alternate, enure; inflorescence cymose, often 

 in compound spikes or umbels, or flowers solitary in axils, acrinomorphic or slighdy zygomorphic, 4- to 6-merous, dimorphic 

 or trimorphic; caly.x-tube tubular or rarely campanulate, appendage distinct, rarely obscure; petals prominent or absent; stamens 

 4-12, the ventral ones inserted higher than the dorsal; ovary sessile or nearly so; style distinct, rarely short; capsules scpticidally 



dehiscent, 2-valved, the valves sometimes 2-fid; seeds 8 to many, small. About 25 species, in the Tropics and temperate 



regions. 



l.\. Plant scabrous with papillose hairs; leaves rounded or subcorclate at base, semiclasping; appendage of calyx-lobes 1.5-2 mm. long, erect. 



1 . L. salicaria 

 IB. Plant glabrcscent; leaves acute to broadly cuneate at base, sessile but not clasping; appendage of calyx-lobes 0.5-0.7 mm. long, spreading. 



2. L. anccps 



1. Lythrum salicaria L. L. salicaria var. intermedium neath, and calyx; stems erect, slighdy branched, 4-striatc, 



Koehne; L. salicaria var. vtilgare DC. Ezo-miso-haci. 50-100 cm. long; leaves opposite, lanceolate to broadly so, 4-6 



Rhizomatous perennial, usually scabrous on stems, leaves be- cm. long, 8-15 mm. wide, subobtuse or acute, rounded or sub- 



