62. POLYGONACE.E. 141 



Var. erecta, with the lower le. sinuato-dentate. Per. of the 

 fruit denticulate, more or less tuberculate on the back. Spikes 

 short, dense, many-flowered. In the same stations as the last. 



3. SALicdRNiA. Glasswort. 



S. HERBACEA, 'L.Jointed-Glasswort. Stem succulent, jointed; 

 smooth, bright green, erect, leafless, 3 6 in. high, much branched, 

 articulations of the stem thickened upwards, notched. Fl. in 

 succulent spikes, jointed as in the stem, placed in a triangle at 

 the joints. Seeds oval, covered with hooked hairs. 



Frequent. On the shores of the Firth, from Gourock to Arran, extending tip 

 into the Holy Loch and Loch Long. (B) A. 89. 



4. SILE'DA. Sea-Blite. 



S. MARi'riMA, Dumort. Stem branched, erect or procumbent, 

 48 in. long. Le. linear, thick, fleshy, acute. FL axillary, 

 sessile, solitary, 2 3 together, each having 2 small bracts at the 

 base. 



Frequent. On the shores of the Firth. (B) A. 79. 



5. SALSOLA. Saltwort. 



S. KALI, L. Prickly-Saltwort. Stem hard, much branched, 

 procumbent, smooth, 6 12 in. long. Le. semi-cylindrical, subulate, 

 ending in a prickle ; upper ones short and broad, both scabrous. 

 Fl. axillary, solitary with 3 bracts at the base. Peri, cartilaginous 

 with a membranous dorsal appendage. 



Frequent. On the sandy shores of the Firth; Largs; Cumbrae; Bute and 

 Arran. (B) A. 78. 



61,-SCLERANTHACE^. 



1. SCLERANTHUS. Annual- Knawel. 



S. ANNUUS, L. Stems spreading, much branched, 2 4 in. high. 

 Le. opposite, united at the base by a narrow membranous edge, 

 fringed on the margin. Fl. very small, green, solitary or in 

 axillary clusters. Peri, urceolate, enlarged after flowering with 

 spreading segments, and a narrow membranous margin. Plant 

 slightly downy. 



Frequent. Sandy corn fields. (B) A. B. 6 8. Tollcross, roadside on the tops 

 of walls beyond Lambill; banks of Clyde at Bogle's hole; Gourock, <fcc. 



62 POLYGONACE.E!, 



1. POL^GONUM. Bistort, Knotgrass, Persicaria. 



Styles 3. 

 1. P. BISTORTA, L. /Snake- Weed, Common- Bistort. Stem 



