32

Alyssum, hoary, 133

Amaranth, 126, 127

Amaranth family, 126

Amaranthaceae, 126

Amaranthus, 127

Ambrosia, 160, 161

American jute, 145

Anacardiaceae, 145

A-NAT'RO-POUS, a name applied to an ovule or seed which grows so
that the funiculus coheres to the whole length forming a raphe
along the edge bringing the hilum near the micropyle while the
chalaza is at the other extremity.

Annual fleabane, 165

Anthemis, 161

Apetalous pepper-grass, 135

A'PEX, the tip or growing point of an organ.

Arctium, 162

Arenaria, 129

Artemisia, 162

Artichoke, 167

Asclepiadaceae, 149

Asclepias, 149

Atriplex, 124

Avena, 110

AWN, a bristle-shaped appendage.

Ax seed, 139

Ax wort, 139

Ball mustard, 137

Barbarea, 133

BARBED, furnished with rigid points or short bristles, usually
reflexed like the barb of a fish-hook.

Barnyard grass, 114

Beaked nightshade, 156

Beaver poison, 148

Beggar-ticks, 163

Bermuda grass, 113

Berteroa, 133

Bidens, 162, 163

Biennial wormwood, 162

Bindweed, 150

Bird's-foot trefoil, 139

Bitter buttercup, 131

Bitter dock, 122

Black-eyed susan, 169

Black medick, 139

Black mustard, 134

Black nightshade, 156

Black swallow-wort, 149

Bladder campion, 130

Bladder Ketmia, 146

Bloom-fell, 139

Bluefield madder, 159

Blue grass, 116

Blue grass, Canadian, 116

Blue grass, Kentucky, 116

Blue Vervain, 153

Borage family, 152

Boraginaceae, 152

Bouncing Bet, 129

Broad-leaved Dock, 122

Broad-leaved plantain, 159

Brome grass, 112

Bromus, 111

Buckwheat family, 119

Buckwheat, wild, 120

Bulbous buttercup, 132

Bull thistle, 164

Burdock, 162

Bur-grass, 112

Bur-marigold, 162

Bur-seed, 152

Bursa, 134

Buttercup, bitter, creeping, or tall, 131

Butter and eggs, 156

Camelina, 134

Canada thistle, 164

Canadian blue grass, 116

Capriola, 113

Capsella, 134

Carduus, 164, 165

Carpet-weed, 128

CAR'UN-CLE, an excrescence or protuberance near the hilum of a
seed.

Caryophyllaceae, 128

Cashew family, 145

Catch-fly, 129, 130

Catmint, 154

Catnip, 154

Celandine, 132

c. m. centimeter, see ruled lines on last page, 183

Cenchrus, 112

Centaurea, 163