1H ALSINACEAE. 



1. T. rubra (L.) Britton. Plants more or less branched at the base, the 

 branches often depressed, 3-12 cm. long, finely glandular-pubescent above: 

 leaf -blades linear, 5-22 mm. long, flat: sepals linear to linear-lanceolate, be- 

 coming 3 mm. long: petals red, ovate or rhombic, mostly shorter than the 

 sepals: capsules about as long as the calyx. M. Eather rare, in waste places 

 and fields. Nat. of Eu. Sum. SAND-SPURRY. 



2. SAGINA L. Annual or perennial diminutive herbs. Leaf -blades 

 subulate to filiform. Flowers axillary. Sepals 4 or 5, persistent. Petals 4 

 or 5, about as large as the sepals, or wanting. Stamens 5, or sometimes 3-10. 

 Stigmas short. Capsule longer than the sepals. 



1. S. decumbens (Ell.) T. & G. Plants 2-10 cm. tall, very slender: leaf- 

 blades linear-subulate, 2-8 mm. long: pedicels erect, very slender: sepals 

 ovate or oval, about 1.5 mm. long: petals wanting or rudimentary: capsules 

 oblong-ovoid, about twice as long as the calyx. Bare, on hillsides, near Safe 

 Harbor. Schists. Sum. PEAKLWORT. 



3. HOLOSTEUM [Dill.] L. Annual tender herbs. Leaf -blades flat. 

 Flowers in umbel-like cymes. Sepals 5, persistent. Petals 5, emarginate or 

 toothed. Stamens 5, or 3. Stigmas slender. Capsule narrow, partly enclosed 

 in the calyx. 



1. H. umbellatum L. Plants 8-40 cm. tall: leaf -blades oblong or oblanceolate 

 below, to oblong or lanceolate above, 1-3 cm. long: sepals lanceolate, 4-5 mm. 

 long: petals 5.5-6.5 mm. long, toothed: capsules 5-6 mm. long. M. S. 

 Common, in fields, woods, and waste places. Nat. of Eu. Spr. JAGGED- 



CHICKWEED. 



4. ALSINOPSIS Small. Annual or perennial herbs. Leaf -blades subulate 

 or sometimes flat, but narrow. Flowers in cymes. Sepals 5, often fleshy. 

 Petals 5, entire or emarginate. Stamens usually 10. Stigmas typically 3, 

 slender. Capsule with as many valves as stigmas. 



1. A. stricta (Michx.) Small. Stems 1-3 dm. tall: leaf -blades linear-subulate, 

 5-10 mm. long: sepals ovate, about 2.5 mm. long: petals about thrice as long 

 as the sepals : capsules nearly twice as long as the sepals. M. Rare, on 

 rocky hillsides and cliffs. Limestones. - Sum. SANDWORT. 



5. ARENAEJA L. Annual or perennial herbs. Leaf -blades flat, broad or 

 sometimes narrow. Flowers axillary or cymose. Sepals 5, firm, often ribbed. 

 Petals 5, entire or notched, or wanting. Stamens typically 10. Stigmas 3, or 

 rarely 2-5. Capsules with twice as many valves as stigmas. 



1. A. serpyllifolia L. Plants 1-4 dm. tall, diffuse: leaf -blades ovate to 

 broadly elliptic, 2-6 mm. long, minutely ciliate: sepals lanceolate, 3-4 mm. 

 long: petals oblong-ovate to elliptic, about 2 mm. long: capsules about 3 mm. 

 long. Common, in dry places and woods. Nat. of Eu. Spr. SANDWORT. 



6. MOEHRING-IA L. Perennial herbs. Leaves few: blades flat, usually 

 broad and relatively large. Flowers few, the axillary stalks elongate. Sepals 

 4 or 5, herbaceous, not ribbed. Petals 4 or 5, broad or narrow, longer than 

 the sepals or shorter. Stamens 8 or 10. Styles mostly 3, elongate. Capsule 

 fully as long as the calyx or shorter, few-seeded. 



1. M. lateriflora (L.) Fenzl. Plants reclining or diffuse, 1-3 dm. tall, the 

 stem and branches slender: leaf -blades thin, oblong to oval, 1-2.5 cm. long, 

 obtuse, ciliate: sepals oblong to oval, about 2 mm. long: petals twice as long 

 as the sepals, short-clawed: capsules ovoid, about twice as long as the calyx. 

 M. Bare, chiefly in the Dillerville swamp, Lancaster. Limestones. Sum- 



