INDEX TO THE GENERA. 



ii 



AgTOSt'lS 



•1: 



Briza 



63 



Anthoxanthum 



- 45 



Bromua 



- 67 



Alopocurus 



- 47 



Bignonia 



9 



Aristida 



53 



Bartonia 



89 



Andropog'on 



54 



Baptisia 



- 206 



Aim 



56, 57 



Balsamona - 



224 



Avena 



69 



C. 





Aruudo 



70 



Callitriche 



- 2 



\nthopogon 



71 



Catalpa 



9 



» tgrostu 



40, 41, 44 



Cunila 



12 



Jtrundo 



44, 45 



Ountia 



13 



. hcna 



65 



Collinsonia 



15 



. lira 



69 



Circxa 



16 



AapreUa 



72 



Crypta 



17 



Onychia 



74 



( ',} perns - 



26 



Andrewaia 



89 



Cenchrus 



38 



Ammania 



- 91 



Cinna 



44 



Anagallia - 



106 



Calamagrostis 



44 



. Itropa 



111 



Crypsis 



45 



Azalea - 



113 



CommeUna - 



24 



. hnpetopsi* - 



118 



Cyperus 



29 



Apocynum 



- 129 



Cornucopia 



- 40 



Asclepias - 



131 



Cynosw'iis 



70 



Am mi 



- 138 



Cephalanthus - 



- 80 



Ang-elica - 



140 



Cornus 



86 



Atiiplex 



148 



Centaurella 



89 



Aralia 



156 



Centaiiriwn - 



89 



Allium 



161 



Cuscuta 



93 



Aletris - 



163 



Cynoglossum 



101 



Aconis 



169 



Convolvulus - 



106 



Anthericwn 



174 



Calystegia - 



. 106, 158 



Alisma - 



177 



Calydennos 



- Ill 



Acer 



184 



Chivonia - 



113 



Andromeda - 



197 



Campanula - 



114 



.. Urine 



213 



Cissus - 



117 



Arcnaria 



213 



Ceanothus - 



126 



Agrostemma 



216 



Celastrus 



- 127 



Agrimonia - 



224 



Comandra - 



128 



Aronia 



- 227 



Cortitsa 



135 



N. B. The words of the Index in italics are synonymous genera, and are only 

 lo be found under other generic terms. 



