CARYOPHYLLACEAE. 



[VOL. II. 



i. Ammodenia peploides (L,.) Rupr. 

 Sea-beach Sandwort. ( Fig. 1512.) 



Arenaria peploides L,. Sp. PI. 423. 1753. 

 Honkenya peploides Ehrh. Beitr. a: 181. 1788. 

 Ammodenia peploides Rupr. Beitr. Pfl. Russ. Reich. 



2: 25. iS 4 .s. 



Perennial from long rootstocks, glabrous, fleshy 

 throughout, stems stout, tufted, simple or 

 branched, erect, diffuse or ascending, 3 / -io / long. 

 Leaves sessile, clasping, ovate or oval, acute or 

 mucronate, 5 // -io // long; flowers axillary and ter- 

 minal, 3 // -4 // broad; peduncles stout, 2 // -8 // long; 

 ovary 3-celled (rarely 4-5-celled); sepals ovate, ob- 

 tusish, about equalling the petals, shorter than 

 the depressed-globose mostly 3-valved pod; seeds 

 smooth, short-beaked at the liiluin, not strophio- 

 late. 



On sands of the seashore, New Jersey to arctic 

 America. Also on the shores of northern Europe and 

 Asia. Called also Sea Chickweed and Sea Purslane. 

 June-July. 



18. SPERGULA L. Sp. PI. 440. 1753. 



Annual branched herbs, with subulate stipulate leaves, much fascicled in the axils, and 

 terminal cymes of white flowers. Sepals and petals 5. Stamens 10 or 5. Styles 5, alternate 

 with the sepals. Capsule 5-valved, the valves opposite the sepals. Seeds compressed, acute- 

 margined or winged. [Latin, (from spergo) to scatter.] 



Two or three species, natives of the Old World. The following is widely distributed as a \vn-tl. 



i. Spergula arvensis L,. Spurry. 

 Corn Spurry. (Fig. 1513.) 



Spergula arvensis L. Sp. PI. 440. 1753. 



Slender, glabrous or sparingly pubescent, branch- 

 ing at or near the base, erect or ascending, 6'-i8' 

 high. Leaves narrowly linear or subulate, i / -2 / 

 long, clustered at the nodes in two opposite sets of 

 6-8 together, appearing verticillatc; stipules small, 

 connate; flowers 2 // -3" broad, numerous in loose 

 terminal cymes; pedicels slender, divaricate; sepals 

 ovate, i>^ // -2 // long, slightly longer than the 

 petals; stamens 10 or 5 in flowers on the same 

 plant; capsule ovoid, longer than the calyx. 



In fields and waste places, frequent as a weed 

 throughout eastern Canada and the Eastern and Mid- 

 dle States, and locally \vist\v.ini. Advcntivr or natu- 

 ralized from Europe. Called also Sandweed. Summer. 



19. TISSA Adans. Fam. PI. 2: 507. 1763. 



[BUDA Adans. Fam. PI. 2:507. 1763.] 

 [SPERGULARIA Pers. Syn. i: 504. 1805.] 



Low annual or perennial herbs, mostly with fleshy linear or setaceous leaves, often with 

 others clustered in the axils, and small pink or whitish flowers in terminal racemose bracted 

 or leafy cymes. Stipules scarious. Sepals 5. Petals the same number, rarely fewer, or none, 

 entire. Stamens 2-10. Ovary i-celled, many ovuled; styles 3. Pod 3-valved to the base. Seeds 

 reniform -globose or compressed, smooth, winged or tuberculate. [Name unexplained.] 



About 20 species, of wide geographic distribution, most of them inhabitants of saline shores or 

 salt marshes. 



Species of salt marshes or sea beaches; leaves very fleshy. 



Pedicels i J4-2 times the length of the sepals- flowers pink. i. T. marina. 



Pedicels 2-4 times the length of the sepals; flowers pale or white. 2. T. Canadensis. 



Species mostly of dry sandy soil; leaves scarcely fleshy. 3. T. rubra. 



