POLTOARPON. lEPIGONUM. 63 



Glaucous. St. erect, glabrous, 1 — i in. higli. L. opposite, 

 linear-lanceolate, acute, rigid. Sep. with broad wbite mem- 

 branous margins, acute. — Dry gravelly and sandy places. A. 

 V. VI. E. I. 



Suborder III. Polycarpece. 



17. PoLTCAE'pojr Linn. 



1. P. tetraphyVlum (L.) ; triandrous ; pet. emarginate, stem- 

 1. in fours, 1. on tke brancbes opposite, — E. B. 1031. — In young 

 plants tbe 1. are often all opposite. — Coasts of tbe South-west 

 of England, rare. A. VI. VII. E. 



18. Lbpi'gonum Fries'^. Sand-Spurry. 



1. L. r4brum (Fr.) ; st. nearly terete, 1. flat linear pointed, 

 stip. triangular-ovate-prolonged mostly cut, caps, about equal- 

 ling the cal. 5 — f shorter than the fr.-stalk, seeds cuneate- 

 obovate f surrounded by a thickened border none winged. — Sy. 

 E. -B. 254. — St. procumbent (as in the other species). Pan. 

 leafy. Pet. pink, about equalling the calyx. Seeds usually 

 gibbous on one side. Smaller in all respects than the other 

 species. — Sandy places. A. V. — IX. E. 8. I. 



2. L. rupicola (Kindb.) ; st. terete, 1. flattish fleshy pointed, 

 stip. broadly ovate-prolonged mostly entire, caps, large equal- 

 ling or slightly exceeding the cal. | — | shorter than the fr.- 

 stalk, seeds compressed pyriform nearly surrounded by a thick- 

 ened border none mnged. — E. B. 8. 2977. — Root thick, woody. 

 L. fascicled, short ; pan.-l. very short, inconspicuous. Pet. pale 

 pink. Stam. 10.— Near the sea. P. VI.— IX. E. I. 



3. L. salinum (Kindb.) ; st. compressed, 1. flattish fleshy W unt- 

 ish or slightly pointed, stip. broadly triangular-ovate entire, 

 caps, exceeding the cal. about as long as the fr.-stalk, seeds com- 

 pressed roundish nearly surrounded by a thickened border and 

 some often with a broad searious wing. — E. B. S. 2978. — 

 L. long ; pan.-l. sometimes long, sometimes inconspicuous. 

 Ped. occasionally twice as long as the capsule. Pet. pink with 

 a white hose. Stam. less than 10. — L. medium (Fr.) has shortly 

 ovate stip., caps, about equalling cal., seeds triquetrous smooth 



^ Lepigormm Fr. Fl. Hal. (1818). Spergwlaria Presl, Fl. Cech. 

 (1819). Spergularia (as a eection of Arenaria) Pers. Syu. (1805). 

 Therefore Lepigoimm is the oldest generic name. 



