104 ' CARYOPHYLLACE^E. 



inches high, with large white flowers, growing on the 

 Scottish mountains : and S. scapigera (Many-stalked 

 Stitchwort), distinguished by its long flower-stalks, 

 and growing both on the Scottish mountains north of 

 Dunkeld, and about Loch Nevis. 



10. HONCKENYA (Sea Purslane). 



1. H. peploides (Sea Purslane). Leaves sessile, egg- 

 shaped, acute, fleshy, smooth; sepals obtuse. A low, 

 succulent, marine plant, with creeping roots, forked 

 stems, and leaves arranged in four rows. The flowers 

 are small and white, and grow from the forks of the 

 stem. The plant forms tangled masses on the sea-shore, 

 and approaches in habit the Sea Milkwort (Glaux mari- 

 tima). Fl. July. Perennial. 



11. ARENARIA (Sandwort). 



1. A. trinervis (Three-nerved Sandwort). Leaves egg- 

 shaped, acute, the lower ones stalked, 3 5 -nerved, 

 fringed ; flowers solitary from the forks of the stem and 

 axils ; sepals 3-nerved,the central nerve rough. A weak, 

 straggling, downy plant, about a foot long, approaching 

 the Chickweed (Stellaria media) in habit, from which, 

 however, it may be at once distinguished by its undivided 

 petals. FL May, June. Annual. 



2. A. serpyllifolia (Thyme-leaved Sandwort). 

 Leaves broadly egg-shaped, pointed, roughish, sessile ; 

 stem repeatedly forked, downy ; sepals tapering, hairy. 

 A small shrub-like herb 2 6 inches high, with in- 

 conspicuous white flowers, common on dry banks and 

 walls. When growing near the sea, the stems are less 

 branched, and the leaves somewhat larger and more 

 decidedly fringed. Fl. June August. Annual. 



* To this group belong also A. ciliata (Fringed Sand- 

 wort), a small species growing on limestone mountains in 

 Ireland ; A. Norvegica (Norwegian Sandwort), discovered 



