CORRIGIOLACEAE 401 
1. Anychiastrum herniarioides (Michx.) Small. Annual or biennial, scabrous- 
pubescent. Stems branched at the base, the branches spreading, 2-15 em. long, forking, 
often numerous: leaves numerous; blades oblong to oval, 3-10 mm. long, mucronate 
ciliate, sessile ; stipules acuminate: calyx bristly pubescent: sepals ovate, becoming 2 
mm. long, slightly hooded, minutely cuspidate : utricle conspicuously swelling the base of 
the calyx at maturity. (Paronychia herniarioides ( Michx. ) Nutt. ] 
In sandy soil, often on sand hills, North Carolina to Florida. , 
2. Anychiastrum Baldwínii (T. & G.) Small. Annual or biennial, slender, 
minutely pubescent. Stems branched at the base, the branches prostrate, 1-4 dm. long, wiry, 
usually forked, sometimes filiform : leaves rather numerous; blades narrowly oblong or 
linear-elliptic, 8-20 mm. long, acute, ciliolate, sessile or nearly so ; stipules linear-lanceo- 
late, 2-6 mm. long: sepals oval, about 1 mm. long, slightly hooded, 3-ridged, ciliate, 
each abruptly narrowed into a short cusp: utricle equalling the sepals in length or slightly 
surpassing them. [Paronychia Baldwinii (T. & G.) Chapm. ] 
In sandy soil, Georgia to Louisiana and Florida. 
S. Anychiastrum riparium (Chapm.) Small. Perennial, very slender, glabrous or 
nearly so. Stems sparingly branched at the base, the branches prostrate, wire-like, 3-12 dm. 
long, widely forking; branchlets filiform: leaves few ; blades oblong or linear-elliptic, 
5-12 mm. long, acute, scarcely paler beneath than above, sessile; stipules short, soon 
lacerate : cymules open, terminating filiform branchlets : sepals ovate, about 1 mm. long, 
slightly hooded, minutely cuspidate, glabrous: utricle obovoid, about as long as the sepals. 
[ Paronychia riparia Chapm. ] 
In dry sand, along or near the Flint River, southwestern Georgia. 
3. ANYCHIA Michx. 
Annual herbs, with slender forking stems. Leaves opposite: blades narrow or some- 
what dilated. Flowers solitary or clustered in the forks. Calyx persistent. Sepals 5, 
greenish, distinct, barely mucronate on the back, nearly flat. Stamens 2-3, or rarely 5, 
included : filaments inserted at the base of the ovary. Styles very short : stigmas spread- 
ing. Utricle nearly as long as the calyx or exserted. Seed erect. The plants flower in 
the summer. FORKED CHICKWEED. 
Foliage glabrate : sepals oblong: utricle surpassing the calyx. 1. A. Canadensis. 
Foliage pubescent: sepals ovate: utricle nearly as long as the calyx. 2. A. dichotoma. 
l. Anychia Canadénsis (L.) B.S.P. Annual, deep green, glabrous. Stems erect 
or ascending, 0.5-4 dm. tall, simple below, forking above, the branches filiform : leaf-blades 
thinnish, oblong to elliptic, 0.5-2 cm. long, obtuse or acutish, short-petioled : cymes open : 
calyx nearly 1 mm. long: sepals oblong, obtuse, slightly white-margined, hooded at the 
apex: utricle subglobose, slightly surpassing the calyx: seed lenticular, 1 mm. broad. 
[A. dichotoma var. capillacea Torr. ] 
In open woods and on hillsides, Ontario to Minnesota, Massachusetts, Georgia and Arkansas. 
2. Anychia dichótoma Michx. Annual, pale green, minutely pubescent. Stems 
erect or decumbent, 0.5-3 dm. long, forking, the branches often densely disposed, wiry : leaf- 
blades thickish, oblanceolate or linear-elliptic, 0.5-1.5 cm. long, acute, sessile or nearly 
80: cymes rather dense: calyx 0.8-0.9 mm. long: sepals ovate, acute, 3-ribbed, green, 
hooded at the apex : utricle obovoid, flat-topped, shorter than the calyx. 
In dry soil, Maine to Minnesota, Florida, Alabama and Arkansas. 
4. ODONTONYCHIA Small. 
Perennial caulescent herbs, with glaucous or finely pubescent foliage. Stems com- 
monly tufted, erect or assurgent, corymbose above. Leaves opposite: blades somewhat 
fleshy, narrow. Flowers in dense terminal corymbose cymes. Calyx sessile, not urn- 
shaped. Sepals 5, about as long as the hypanthium, erect, paler than the hypanthium. 
Stamens 5, included : filaments inserted on the margin of the hypanthium. Styles united 
to near the apex. Urticle included. The plants flower from spring to fall. 
Foliage glaucous : hypanthium glabrous: sepals lanceolate or oblong-lanceolate, 1. O. erecta. 
Foliage pubescent: hypanthium pubescent: sepals oblong or ovate-oblong. 2. O. corymbosa. 
1. Odontonychia erécta (Chapm.) Small. ‘Perennial, stout, glaucous. Stem 
branched at the base, the branches tufted, erect, ascending or slightly decumbent, 1-4 dm. 
tall, usually simple below, forked above : leaf-blades linear, linear-oblanceolate, or the 
upper oblong, 1-3 em. long, obtuse or acute, erect or ascending, sessile ; stipules silvery, 
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