124 33. PARONYCHIACE^E. 



Tribe II. Spergulea. 



4. POLYCARPON Linn. 



1. P. tetraphyllum (L.) ; triandrous, pet. eraarginate, stem-1. 

 in fours, 1. on the branches opposite. E. B. 1031. In young 

 plants the 1. are often all opposite. Coasts of the south-west of 

 England. A. VI. VII. E. 



5. LEPIGONUM Wahlb. 



1. L. rubrum (Wahlb.) ; st. round, I. flat linear pointed, caps. 

 about equalling evk.rather shorterthan slightly declining/r.-sfa^s, 

 seeds triangular obovate with a thickened rough border. St. pro- 

 cumbent. Short ped. and cal. glandular hairy. L. bristle-pointed. 

 Sep. obtuse, obscurely 3-veined. a. Aren. rubra (L.); seeds all 

 wingless, 1. flat on both sides. Arenaria Sm. E. B. 852. /3. A. 

 media (L. ?) ; seeds mostly wingless a few winged, 1. fleshy flat 

 above. Sandy fields. /3. Near the sea. A. VI. IX. 



2. L. marinum (Wahlb.); st. compressed, L fleshy blunt apicu- 

 late, caps, exceeding cal. much shorter than declining fr.-stalks, 

 seeds roundish usually surrounded by membranous striated wing. 

 Root almost woody. St. glabrous or glandular hairy. L. 

 sometimes pointed. Sep. obtuse, obscurely 3-veined. a. Aren. 

 marina (Sm.) ; seeds nearly all winged, caps, large exceeding cal. 

 by %. E. B. 958. /3. salinum; seeds nearly all wingless, caps, 

 small slightly exceeding calyx. Sea-coast. P. VI. VIII. 



6. SPERGULA Linn. Spurrey. 



1. (S. arvensis (L.); I. linear convex above furrowed beneath, fl. 

 in forked panicles, fr.-stalks deflexed, seeds slightly compressed 

 with a narrow margin tubercled or papillose. St. 6 12 in. high. 

 L. long, slender. Seeds black. a. S. arvensis (R.) ; seeds 

 covered with minute elevated points. E. B. 1535. /3. S. vulgaris 

 (Boeningh.); seeds covered with white or brown club-shaped 

 papillse. Cultivated land. A. VL VIII. 



[2. S. pentandra (L.) ; 1. linear subterete convex beneath, fl. 

 panicled, seeds smooth with a broad membranous margin. 

 E. B. 1536? I have seen no specimens. Ireland. Sherard. 

 A. VIII. ?] 



Tribe III. Scleranthea. 



^ 

 7. SCLERANTHUS Linn. 



1. S. annuus (L.); subdecandrous, segments of the calyx of 

 the fr. patent acute with a very narrow membranous margin, a* 



