426 



Caryophyllaceae 



lA. Annual or biennial herb; petals shorter than the sepals 1. A. serpyUijolia 



IB. Perennial herbs; petals slightly longer than the sepals. 



2A. Stems with minute papillose hairs, more or less in 2 series; leaves nearly glabrous, broadly lanceolate to narrowly ovate, 3-7 mm. 



long, 1.5-3 mm. wide; sepals 3-4 mm. long, acuminate 2. A. hfitoana 



2B. Stems with crisped hairs all around; leaves soft-pubescent especially on margin, oblong to broadly ovate, 1-2 cm. long, 5-10 mm. 

 wide; sepals 6-8 mm. long, subobtuse i. A. merchioides 



1. Arenaria serpyllifolia L. A. serpyllifolia var. lep- glabrous, acuminate, 3-4 mm. long; petals ovate, white, 5-6 

 todados auct. Japon., non Reichenb., and var. tenuior auct. mm. long, subobtuse; styles slender, erect, about 2 mm. long; 



Japon., non Mert. & Koch Nomi-no-tsuzuri. Short-pubes- capsules conical-ovoid, about 5 mm. long; seeds reniform- 



cent annual or biennial; stems slender, much-branched, 5-20 orbicular, minutely mammillate, nearly 1 mm. long. July- 

 cm. long; leaves small, narrowly to broadly ovate or elliptic, Aug. Alpine; Hokkaido (Mount Yubari), Honshu (Mount 

 sometimes lanceolate in upper ones, 3-7 mm. long, 1-5 mm. Hayachine in Rikuchu, and Mount Shibutsu in Kotsuke); 

 wide, acuminate to acute, mucronate, sessile; flowers in leafy rare. 



cymes, axillary, solitary, terminal; pedicels spreading or as- Var. lanceolata Tatew. A. tatewakii Nakai. Apoi- 



cending, 5-15 mm. long, slender; sepals broadly lanceolate, tsume-kusa. Leaves narrower, lanceolate to narrowly so. 



acuminate, 3-4 mm. long; petals about half as long as the Hokkaido (Mount Apoi in Hidaka Prov.). 



sepals, obovate-orbicular, obtuse, white; capsules slighdy longer 3. Arenaria mercldoides Maxim. A. cho\aiensis Yatabe 



than the sepals; seeds obliquely elliptic, 0.3-0.5 mm. long, dark Chokai-fusuma, Meakan-fusuma. Rhizomes slender, 



brown, thick-discoid, the superficial cells slightly convex- elongate, much branched; stems tufted, angled, 5-15 cm. long, 



elliptic. ^Mar.-June. Sunny slopes and waste ground in nearly simple; leaves oblong to elliptic or ovate, 1-2 cm. long, 



lowlands and hills; Hokkaido, Honshu, Shikoku, Kyushu. 5-10 mm. wide, acute with an obtuse tip, pubescent while 



Europe and Asia. young, sparsely so later and confined to the margins, rather 



2. Arenaria katoana Makino. Kato-hakobe. Peren- fleshy, sessile; flowers 1-4, the pedicels soft-pubescent, 10-15 

 nial; stems tufted, branched below, terete, 5-8 cm. long, rather mm. long; sepals lanceolate, obtuse, slightly pubescent; petals 

 densely leaved, with 2 longitudinal rows of minute hairs; narrowly ovate; seeds reniform-orbicular, red-brown, about 

 leaves sessile, ovate or narrowly so to broadly lanceolate, 3-7 1.5 mm. across inclusive of the rather thickish marginal wing. 



mm. long, 1.5-3 mm. wide, acuminate, glabrous except a few July-Aug. Alpine; Hokkaido (Mount Meakan), Honshu 



short hairs on margin near base; flowers 1 or 2, the pedicels (Mount Chokai and Mount Gassan) ; rare. 



minutely pubescent, 5-12 mm. long; sepals broadly lanceolate. 



8. MOEHRINGIA L. O-yama-fusuma Zoku 



Rather low annuals or perennials; leaves flat, thin, sometimes linear, sessile or short-petiolate; flowers axillary, solitary or 

 cymose, small, white; sepals and petals 4 or 5; stamens 8-10; styles 2 or 3; capsules ellipsoidal, the valves 4-6; seeds rather few, 

 usually lustrous, with a membranous strophiole on the hilum. About 20 species, temperate regions of the N. Hemisphere. 



lA. Leaves ovate to broadly so, distinctly petioled; sepals acuminate, broadly lanceolate, longer than the capsule. . . . 

 IB. Leaves oblong to narrowly so, sessile; sepals very obtuse, elliptic, about half as long as the capsule 



1. Moehringia trinervia (L.) Clairv. Arenaria trinervia 

 L.; M. platysperma Maxim.; M. trinervia var. platysperma 

 (Maxim.) Makino Tachi-hakobe. Short-pubescent bi- 

 ennial; stems erect or ascending, mosdy decumbent and 

 branched below, 7-20 cm. long; leaves ovate or broadly so, 

 1-2.5 cm. long, 5-12 mm. wide, acute or cuspidate, abruptly 

 narrowed to subrounded at base, subtrinerved, subsessile or 

 distinctly petiolate in the lower ones, short-cihate; flowers 

 solitary in axils, white, the pedicels 1-4 cm. long; sepals 

 broadly lanceolate, 1-nerved, acuminate, short-pilose on the 

 nerves, broadly white and glabrous on the margin, 3.5-5 mm. 

 long; petals obovate, entire, 1/3-1/2 as long as the sepals; 

 capsules 2.5-3 mm. long, the valves 6, recurved above; seeds 

 reniform-orbicular, lenticular, about 0.8 mm. across, with a 

 small strophiole at base. Mar.-July. Foothills; Hokkaido, 



... \. M. trinervia 



. . 2. M. lateriflora 



Honshu, Shikoku, Kyushu; rather rare. Europe, Siberia, 



and Formosa. 



2. Moehringia lateriflora (L.) Fenzl. Arenaria lateri- 

 flora L. O-YAMA-FusuMA. Perennial herb; stems slender, 



10-15 cm. long, branched, slender; leaves oblong to narrowly 

 so, sometimes elliptic, 1-2.5 cm. long, 3-10 mm. wide, obmse or 

 subobtuse, sessile, short-pilose on margin and on nerves be- 

 neath; inflorescence axillary or terminal, 1- to 3-flowered, 1-3 

 cm. long, puberulent, often with a pair of minute bracts near 

 the middle; sepals elliptic, obtuse to subrounded at apex, 2-3 

 mm. long, obsoletely 1- to 3-nerved; petals entire, longer or 

 nearly as long as the sepals; capsules 3.5-5.5 mm. long, 3- 



valved, the valves bifid, erect; seeds about 1 mm. long. 



Meadows in mountains; Hokkaido, Honshu, Shikoku, Kyu- 

 shu. Temperate regions of the N. Hemisphere. 



9. PSEUDOSTELLARIA Pax Wachigai-so Zoku 



Low perennial herbs usually with thickened roots; stems erect or ascending, sometimes long-creeping after anthesis; leaves 

 flat, 1-nerved; flowers dimorphic, the chasmogamic flowers 1 to several on or near the top of stems, in cymes; sepals 5, some- 

 times 6 or 7; petals as many as the sepals, white, slightly longer than the sepals, entire or bifid; stamens usually 8 or 10; styles 

 2-4; ovary globose, the ovules rather numerous, the placenta nearly basal; capsules globose, 2- to 4-valved, the valves bifid; 

 cleistogamous flowers usually on lower part of stems, short-pedicelled or subsessile, the sepals 4 or 5, the petals absent; stamens 

 reduced; seeds slighdy compressed, tubercled. More than 10 species, in e. Asia to the Altai mts. and the Himalayas to Europe. 



