Part 32

Sour dock, 121

Sow-thistle, 169

Spanish dodder, 151

Spear grass, 116

Speedwell, 157

Spergula, 130

SPIKE'LET, a small or secondary spike, as found in grasses.

Spotted spurge, 144

Spring clotbur, 171

Spring sow-thistle, 169

Spurge family, 143

Spurry, 130

Squirrel-tail grass, 115

St. John's-wort family, 147

Star thistle, 163

Stellaria, 131

STER'ILE, not fertile.

Stick-seed, 152

Stink grass, 115

Stipa spartea, 117

Stonecrop, mossy, 138

Stork's-bill, 142

STRI'ATE, striped with parallel ridges and grooves.

Swallow-wort, 149

Swamp begger-ticks, 163

Sweet clover, 140

Sweet everlasting, 166

Syntherisma, 113