110 MONOCHLAMTDE^E. 



pair of narrow ovate bracteas to each. Starcross. Exmouth 

 Warren. Budleigh Salterton. (E. B. t. 633.) A. vn.-ix. 



TEIBE V. 

 SALSOLA. SALTWOET. 



S. Kali (prickly S.) On sandy seashores. Stem much 

 branched and extensively spreading, stiff and angular, from 6 

 inches to a foot long ; all the leaves terminated by a stout sharp 

 thorn. Flowers in the upper axils, sessile, pale- greenish, solitary. 

 Paignton and Groodrington sands. (E. B. t. 634.) A. vni. 



OED. LXXI. SCLERANTHACEJE. 



SCLERANTHUS. KNAWEL. 



S. animus (annual Knawel.) Frequent in cornfields. Plant 

 with numerous spreading stems, much branched ; leaves linear, 

 with a membranous margin at their base. Flowers green, soli- 

 tary in the axils of the stem or in terminal leafy clusters. Very 

 common. (E. B. t. 351.) A. VI.-YIII. 



ORD. LXXII. POLYGONACE-ffi. 



POLYGONUM. PEESICARIA, BISTORT, KNOT- 

 GRASS, BUCKWHEAT. 



1. P. aviculare (common Knotgrass) In waste places and 

 cultivated ground. A tough, much branched plant, from a few 

 inches to 2 feet long ; stem erect or procumbent ; leaves oblong, 

 narrow, alternate. Flowers axillary, on short stalks, in clusters 

 of from 2 to 5, small, variegated with red, white, and green ; nut 

 triangular. Abundant. (E. B. t. 1252.) A. v.-ix. 



2. P. Robert! (Robert's K.) Sandy seashores in the west of 

 England. Stem long and straggling, decumbent ; leaves distant, 

 elliptic-lanceolate, succulent, curled at the margin. Flowers 

 small ; nut protruding, smooth and shining. Paignton sands. 

 P. Rail, Bab. (E. B. S. t. 2805.) A. vn.-ix. 



3. P. Fagopyrum (common Buckwheat.} About dunghills 

 and in cultivated places. Stem erect, about 1 foot high, wavy ; 



