112 



IN DEX. 



Abutilon 64 



Acacia 6,7,42,43 



Acacia 44, 45 



Acalypha 59 



Acerates 78, 79 



Achryanthes 32 



Actinella 109, no 



Actinomeris 1 06 



Acuan 44 45 



Adhatoda 95 



Adiantum . . 9 



Adopogon no 



^cidium 81 



Aizoon 35 



Agassizia 109 



Agave 25 



Agrostis 15 



Allionia 34 



Allium .... 23 



Allium 23 



Alternanthera 32 



Amaranthus 31, 32 



Amblyolepis 109 



Ambrosia 103 



Amellus loi 



Ammannia 69 



Ammoselinum 72 



Amorpha . . ., 48 



Ampelanus 79 



Ampelopsis 63, 64 



Anantherix 78 



Andropogon 10 



Antirrhinum 91 



Antirrhinum 91 



Aphanostephus loi 



Aphora 60 



Apium 73 



Apium 72, 73 



Aplopappus loo, 10 1 



Arabis 41 



Arenaria 35 



Arenaria 36 



Argemone 38 



Argyrochaeta , 103 



Argythamnia 60 



Aristida 14 



Asclepias 77 



Asclepias 77, 78 



Asclepiodora 78 



Aspidium 9 



Astragalus 51, 52 



Atrema 72 



Atriplex 31 



Baptisia 46 



Barrattia 105 



Bartonia t 68 



Batis . ' 4, 33 



Berberis 37, 38 



Berlandiera 103 



Bifora 7, 71 



Bigelowia 101 



Boehmeria 29 



Boerhavia 34 



Bolivaria 76 



Borrichia 105 



Bouteloua 15, 16 



Bowlesia 74 



Brauneria 104 



Brazoria 7> ^8 



Briza 17 



Bromus 18 



Buchloe 16 



Bulbilis 16 



Bumelia 75 



Buphthalmuin . 105 



Caesalpinia 46 



Calceolaria 67 



Callicarpa 85 



Calliopsis 107 



Callirhoe 64, 65 



Calophanes 94 



Calydorea 25 



Catylophus 70 



Calymenia 34 



Calyptocarpus 1 06 



Campanula 99 



Canna . 26 



Cantua 81 



Capnoides 38 



Capraria 93 



Cardamine 39> 4 



Cardiospermum . . . . . ... .62 



Carum 73 



Carya 26 



Cassia . 7, 46 



Castela 6, 56 



Castilleja 94 



Ceanothus 63 



Cebatha 38 



Celtis 6, 27, 28, 29 



Cenchrus 14 



Cenchrus 10 



Centaurea lio 



Cephalanthus 96 



Cephalophora no 



Cerasus . . 42 



