CAUYOPHYLLACE^. (PINK FAMILY.) 49 



1. A. squarrosa, Fenzl. Stems tufted ; leaves subulate, rigid, those of 

 the glandular flowering stems distant, of the sterile stems imbricated, with 

 spreading tips ; sepals ovate, obtuse, shorter than the capsule. (Arenaria squar- 

 rosa, Michx.) — Dry sand-hills, West Florida and northward. April and May. 

 1|. — Stems 6'- 10' high. Cymes few-flowered. Pedicels rigid. 



2. A. glabra, Gray. Smooth ; stems filiform, sparingly branched ; leaves 

 tender, narrow-linear, obtuse, spreading ; cyme few-flowered, spreading ; sepals 

 oblong, obtuse, faintly 3-ribbed,as long as the capsule. (Arenaria glabra, Michx.) 

 — Mountains of North Carolina. July. y. ? — Stems tufted, 4' - 6' high. Cymes 

 leafy. Pedicels setaceous. Leaves j'- I' long. 



3. A. patula, Gray. Minutely pubescent; stem filiform, diffusely branched 

 from the base; leaves narrow-linear, spreading; cyme spreading, few-many- 

 ttowered ; pedicels very slender ; petals spatulate, emarginate, twice the length 

 of the lanceolate acute 3-5-nerved sepals. (Arenaria patula, Michx.) — Rocks 

 around Knoxville, Tennessee, and northward. — Stems 6'- 10' high. 



4. A. Micliauxii, Fenzl. Smooth ; stems tufted, erect or diffuse, straight; 

 leaves linear-subuhite, erect, spreading or recurved, much clustered in the axils ; 

 cymes spreading or contracted ; petals oblong-obovate, twice as long as the rigid 

 ovate acute 3-ribbed sepals. (Arenaria stricta, Michx. ) — Rocks and barren soil, 

 Georgia and northward. May and June. — Stems 3' - 10' high. 



5. A. brevifolia. Stems smooth, not tufted, erect, filiform, simple, 

 2-5-flowered; leaves minute (l"-2"), erect, lance-subulate; sepals oblong, 

 obtuse, as long as the capsule ; petals twice as long as the sepals (Arenaria 

 brevifolia, Nutt.) — Rocks in the upper districts of Georgia. (1) — Stems 2' -4' 

 long, bearing 3 or 4 pairs of leaves. Flowers small, on filiform peduncles. 



11. ARENARIA, L. S.vndwort. 



Petals 1-5, or none. Styles 2-4. Capsule opening above by as many 

 valves as there are styles, each valve soon splitting into two pieces. Otherwise 

 like Alsine 



1. A. diffusa, Ell. Downy; stem elongated, prostrate, alternately short- 

 branched ; leaves lanceolate ; peduncles longer than the leaves, lateral, re- 

 flexed in fruit ; petals 1-5, shorter than the sepals, often wanting. (Stellaria 

 elongata, Nutt. Micropetalon lanuginosum, Pers.) — Shady banks, Florida to 

 North Carolina and westward. May- October, y. — Stems 1° -4° long. 



2. A. serpyllifolia, L. Downy ; stems diffusely branched ; leaves small, 

 ovate, acute, the lowest narrowed into a petiole ; flowers cymose ; petals much 

 shorter than the lanceolate acuminate sepals. — Waste places, Florida and north- 

 ward. Introduced. April and May. (2) — Stems C- 12' long. Leaves j' long. 



12. STELLARIA, L. Chickw^eed. Starwort. 



Sepals 4 - 5. Petals 4 - 5, 2-cleft, or 2-parted. Stamens 3-10. Styles 3-5, 

 opposite the sepals. Capsule 1 -celled, opening by twice as many valves as there 

 are styles, many-seeded. — Stems weak. Flowers white, on terminal peduncles, 

 becoming lateral in fruit. 



5 



