OKDER XXn. PORTULACACE.E. 249 



tered panicles, frequently double ; crown of the petals linear. — White, 

 tinged with red. 2£. Through the summer. Introduced. 12 — 20 

 inches. 



Gtaros IX.— DIAXTHUS. L. 10— 2. 

 (From the Greek dios, divine, and anthos, a flower.) 



Coly.r tubular, 5-toothed, with scales at the base. Petals 5, 

 with long claws. Stamens 10. Styles 2. Capsule 1-celled. 



1. D. Cat-olinia'-va, (Walt.) Flowers aggregated, on long peduncles, 

 pink. Scales of the calyx half as long as the tube. 



Order XXII.— PORTULACA'CEJE. Juss. 



Sepals 2, seldom 3 — 5, cohering at the base. Petals gen- 

 erally 5 ; aestivation imbricate. Stamens 5, and opposite the 

 petals, inserted with them into the base of the sepals. Anthers 

 tile. Styles 3-cleft, stigmatose within. Capsule 1-celled, 

 with a transverse dehiscence. Placenta central. Seeds numer- 

 ous, campylotropous. Embryo curved. Succulent plants. 

 Leaves without stipules. 



Ge>us I.— PORTULAC'A. L. 12—1. 

 (From porto, to carry, and lac, milk.) 



Calyx cohering to the ovary, 2-parted. Petals 4 — 6, in- 

 serted on the calyx, equal. Stamens 8 — 20. Styles 3 — 6- 

 cleft at the apex, or parted. Capsule 4-celled, many-seeded. 



1. P. olera'cea, (L.) Stem fleshy, spreading on the ground. Leaves 

 cuneiform, obtuse, fleshy. Flowers sessile, in clusters, axillary and 

 terminal, small. — Yellow. ©. Introduced. Furslane. 



Genus II.— TALI'XUM. Adans. 12—1. 

 (Supposed to be derived from thalia, a green branch, in allusion to its verdure.) 



Sepals 2. Petals o, distinct or somewhat united at the base. 

 Stamens 10 — 20. Style filiform, cleft at the apex. Capsule 

 1-celled, 3-valved, many-seeded. 



1. T. teuetifo'lium, (Pursh.) Stem! — 4 inches long. Leaves terete, 

 subulate, fleshy. Flowers in cymes. Peduncles elongated, 3 — 8 inches, 

 naked.— Purple. U- X. C. " 



Genus III.— CLAYTO'XIA. L. 5—1. 

 (In honor of John Clayton.) 



Calyx 2-sepaled. Petals 5. hypogynous, obcordate, emar- 



ginate, bifid, sometimes entire, unguiculate, the claws more or 



• /iinate. Stamens 5, inserted into the claws of the petals. 



Style 3-cleft. Capsule 3-valved, few-seeded. Seeds smooth 



and shining. Herbs with simple stems. 



11* 



