Chenopodiaceae 



415 



ones, 3-6 cm. long, 1.5-3.5 cm. wide, obtuse to subacute, with 

 small deeply undulate teeth, the petioles 1-4 cm. long; flowers 

 in fascicles or glomerules, these arranged in panicles; sepals ob- 

 ovate, about 1 mm. long, obtuse, with a broad green band, low- 

 keeled in the middle; seeds flat, black, 1-1.3 mm. across, shin- 

 ing. ^Waste ground and cultivated fields in lowlands and 



hills; very common. Temperate regions of Eurasia. 



Var. centrorubrum Makino. C. centrorubrum (Makino) 



Nakai Akaz.v. Leaves often deltoid-ovate, reddish mealy 



while young, the panicles somewhat looser. Rarely culu- 



vated, frequently naturahzed in our area. India (?) or 



China (.?). 



Chenopodium purpurascens Jacq. C. album var. pur- 



purascens Makino; C. elegantissimum Koidz. Murasaki- 



AKAZA. Tall purplish stout plant with leaves sometimes 

 more than 10 cm. long; fascicles of flowers dispersed on the 

 much-branched pendulous panicle; seeds usually pale brown- 

 ish. Sometimes cultivated in die warmer parts of our area. 



7. Chenopodium ficifoUum Smith. Ko-akaza. An- 

 nual, sUghdy white-mealy on young parts and underside of 

 leaves; stems 30-60 cm. long; leaves green, deltoid-oblong or 

 narrowly deltoid-ovate, 2-5 cm. long, 1-3 cm. wide, obtuse, 

 cuneate at base, deeply undulate-toothed, the lowest pair of 

 teeth lobelike, the petioles slender; fascicles of flowers sub- 

 interrupted, forming a dense panicle; sepals obovate, about 



1 mm. long, obtuse, green on back, the midrib raised; seeds 



black, about 1 mm. across, discoid, with obtuse margin. 



June-Aug. Hokkaido, Honshu, Kyushu; rather common in 



waste ground and along roadsides in lowlands. Europe to 



w. Siberia. 



8. Chenopodium hybridum L. C. bonus-henricus sensu 



Makino & Nemoto, non L. Usuba-akaza. Glabrous green 



rather tall annual with angled stems; leaves broadly ovate, 6- 

 13 cm. long, 3-7 cm. wide, much elongate above, acuminate, 

 the few large lobes deltoid; spikes rather loosely flowered; 

 flowers rather large; sepals ovate, obtuse, about 2 mm. long, 

 green, ribbed on the back; seeds discoid, flat, about 2 mm. 

 across, minutely pitted. Sept. Hokkaido. Europe. 



9. Chenopodium ambrosioides L. C. ambrosioides var. 



pubescens Makino Ke-arita-s6. Green or yellow-green 



annual with pale white glandular-hairs, not farinose; stems 

 much-branched, ascending, 60-80 cm. long; leaves narrowly 

 ovate to lanceolate, 2-5 cm. long, 5-15 mm. wide, acute to 

 obtuse, undulate to sinuate, short-petioled; spikes leafy, short 

 or elongate; flowers small; sepals usually 3, about 0.8 mm. long, 

 green; seeds horizontal or vertical, shining, thick-lenticular, 



about 0.6 mm. across. July-Nov. Naturalized in Honshu, 



Shikoku, Kyushu; common in waste ground and along road- 

 sides. Tropical America. 



2. KOCfflA Roth HoKiGi ZoKU 



Usually silky-pilose herbs often woody at base; leaves alternate, sessile, narrow, entire; flowers small, sessile, solitary or in 

 axillary fascicles, bisexual and pistillate, the bracts and bracteoles absent; perianth subglobose, urceolate, or depressed-urceolate, 5- 

 parted, the segments incurved, with a horizontal wing on back; stamens 5; ovary broadly ovoid; styles slender; stigmas 2 or 3, 

 capillary, tubercled; fruit utriculate, enclosed in the perianth, depressed-globose, the pericarp membranous, persistent, loosely 



enclosing the seed; seeds horizontal, orbicular, flattened, the testa membranous, the embryo nearly annular. About 80 



species, Europe, Asia, Australia, and Africa. 



1. Kochia scoparia (L.) Schrad. Chenopodium scoparia 



L. HoKiGi. Much-branched annual; stems erect, 50-100 



cm. long, soft-pubescent above; leaves narrowly oblanceolate, 

 lanceolate, or narrowly so, 2-5 cm. long, 2-8 mm. wide, sub- 

 acuminate to acute, gradually narrowed below and petioled in 

 the lower ones, subtrinerved, more or less long-pilose; flowers 

 few, in axillary fascicles, sessile, pale green, often forming a 

 terminal spike by the reduction of the upper leaves; perianth 

 urceolate-globose, depressed, 5-merous, the segments subdel- 

 toid, the wing on back horizontal, spreading, subchartaceous; 



styles very short, the stigmas 2, slender; seeds about 1.5 mm. 

 across, broadly obovate, enclosed in the slightly accrescent 



perianth. Aug.-Oct. Cultivated for making brooms. 



Europe to s. Asia and China. 



Var. littorea Makino. Kochia littorea (Makino) Makino 

 Iso-HOKiGi. Stems rather strongly flexuous, with as- 

 cending to nearly spreading branches. Sept.-Oct. Near 



seashores; Honshu (Tokaido Distr. and westw.), Shikoku, 

 Kyushu. Korea. 



3. ATRIPLEX L. Hama-aic-vza Zoku 



Monoecious or dioecious herbs or shrubs often with scurfy indument; stems leafy; leaves alternate, rarely opposite, petioled 

 or sessile; fascicles of flowers unbranched or paniculate; staminate flowers ebracteate, the sepals 3-5, the stamens of the same 

 number; pistillate flowers surrounded by 2 accrescent bracts, the perianth absent, the ovary globose, the stigmas 2; utricles en- 

 veloped by 2 bracts, the pericarp often membranous, the seeds erect or horizontal, the embryo annular. More than 100 species, 



cosmopolitan. 



lA. Leaves ovate-deltoid to lanceolate, 2-4 cm. wide; pistillate bracts 6-10 cm. long and wide; seeds dark brown, 3-4 mm. across, 

 slightly lustrous; stems with ascending branches 1. A. siibcordala 



IB. Leaves lanceolate to linear, 3-15 mm. wide; pistillate bracts 3-4 mm. long and as wide in fruit; seeds black, about 1.5 mm. across, 

 lustrous; stems with suberect branches 2. A. gmelinii 



1. Atriplex subcordata Kitag. A. tatarica sensu auct. 

 Japon., non L.; A. patuliis sensu auct. Japon., non L.; A. lit- 



toralis var. dilatata Fr. & Sav. Hama-akaza, Ko-hama- 



akaza. Scurfy annual; stems erect, 40-60 cm. long, with 

 ascending branches; leaves ovate-deltoid, narrowly ovate to 



lanceolate, 3-8 cm. long, 2-4 cm. wide, acute to subobtuse, 

 slightly glaucescent, broadly cuneate to gradually narrowed 

 at base, often with few teeth; fascicles of flowers axillary, form- 

 ing a terminal spike; pistillate bracts subsessile in fruit, sub- 

 deltoid, truncate to shallowly cordate at base, subentire, acute 



