INDEX OF SPECIES. 



[Page number of principal entries in bold-face type. Synonyms in italics.] 



Page. 



Agrostis alba 150 



aspera 150 



clandestina - 150 



cruciata 120, 133, 142 



dispar 150 



hiemalis 145 



indica 120, 134, 149 



involute/, 150 



juncea _ 150 



lateriflora. 1 50 



long) folia 150 



mexicana 119 



nigrescens 139 



perennans 145 



purpurascens 14-2 



racemosa 150 



radiata 1-20, 133, 142 



rigidifolia 138 



virginica 119, 121,131 



A ira ambigua 152 



aquatica 120 



caespitosa. . . 120 



flexuosa 120, 152 



indica 120 



melicoides 152 



obtusata 152 



(polynomial) 129, 130 



spicata 120, 155 



subspicata 120 



Alopecurus aristulatus 145 



Ammophila arenaria 150 



Anastrophus compressus 141 



paspaloides 140 



A ndrapogon 129 



Andrapogon (polynomial) 128 



Andropogon alopecuroides 125, 128, 133, 151 



ambiguum 152 



argenteus 151 



argyraeus 151 



avenaceum 151 



barbaium 126, 133, 142 



bicorne 125, 129, 135 



brevifolium 143 



corymbosus 151 



dissitiflorum 151 



divaricatum 125, 129 



fascieulatum. , 115, 126, 133 



fastigiatum 143 



furcatus 12G 



glomeratus 125, 128, 129, 151 



hirtum ,-125, 128 



insulare 125, 126, 135, 142 



isehaemum . 126 



Page. 



Andropogon leucostachys 125, 132, 143 



macrouruni 151 



macrourus corymbosus 151 



nutans 125, 12S, 151 



polydactylon 12(1, 133, 142 



saccharoides 143 



seoparium : 151 



scoparius 125, 12S 



secundus 132 



ternarium 151 



virginicum 125. 12s, 132, 151 



Anthaenantia villosa 145 



Anthephora elegans 124 



hermaphrodita 124 



Anthoxanthum giganteum 151 



odoratum 144 



Apluda zeugites 127 



Aristida atnericana : 123 



dichotoma 144 



oligantha 144 



stricta 1 44 



Arundinaria macrosperma 130, 156 



Arundo arenaria , 156 



canadensis 156 



phragmites 123. 124, 130 



(polynomial) 130, 132 



saccharifera 132 



A sprella hystrix 130 



Avena bromoides 123 



glumosa 155 



. mollis 120, 155 



palustris •. .. 156 



pensylvanica -_ 123 



spicata •. 123 



striata 156 



Axonopus aureus 141 



compressus 133, 142 



furcatus 140 



Bouteloua americana. 123 



curtipendula 152 



litigiosa 123 



Brachiaria erucaeformis ^ . . . 141 



meziana 140 



Brachyelytrum aristatum 144 



erectum 144 



Briza canadensis 155 



eragrostis 121, 130, 155 



Bromus altissimus 122 



canadensis 154 



ciliatus 122, 154 



latiglumis 122 



purgans 122 



Calamagrostis canadensis 156 



