DICHOTOMOUS ANALYSIS. 199 



189. Flowers gynandrons OrcMdaoea, 122 



Stamens and pistils separate 190 



190. Ovary inferior 191 



Ovary superior 199 



191. Veins of the leaves reticulated Dioscoreacece, 113 



Veins of the leaves parallel 192 



192. Veins diverging from the midrib Marantacecs, 123 



Veins parallel with the midrib 193 



193. Stamens 2, or 3 Eydrocharidacece, 121 



Stamens 3 194 



Stamens 6 196 



19 1. Flowers yellow liasmodoracew, 126 



Flowers not yellow 195 



195. Leaves minute, subulate BarmanniacecB, 125 



Leaves large, ensiform Iridacece, 124 



19G. Parasitic, growing on trees Bromeliacea, 129 



Not parasitic 197 



197. Flowers yellow or white 193 



Flowers not yellow Amaryllidacece, 127 



193. Leaves grass-like Ifypocoidacece, 128 



Leaves ensiform Hc&modoracecB, 126 



199. Carpe's separate Alismacece, 137 



Carpels united 200 



200. Sepals and petals distinct 201 



Sepals and petals confounded 203 



201. Stigma 1, leaves with parallel veins Syena, Commelynacece, 136 



Stigmas 3, or 3-cleft 202 



202. Leaves linear, ensiform Xyridacece, 138 



Leaves broad, reticulateiy veined TrUUacece, 120 



203. Flowers brownish Juncacece, 134 



Flowers colored 204 



204. Leaves fan-like Palmacece, 135 



Leaves simple 205 



2 5. Leaves reticulateiy veined Smilacece, 119 



Leaves parallel veined 206 



206. Anthers estrone Melardhacece, 131 



Anthers introrse Liliacece, 130 



207. Flowers glumaceous 216 



Flowers not glumaceous 208 



2G8. Flowers on a spadix 209 



Flowers not on a spadix 213 



209. Fruit succulent Aracece, 138 



Fruit dry 210 



210. Capsule 3-cel!ed, many-seeded 211 



Capsule 1-celled, 1-seeded 212 



211. Flowers pale yellow Aracece, 133. Acorus. 



Flowers blue or white Pontederiacece, 132 



212. Leaves ensiform. marsh plants Aracece, 138 



Leaves not ensiform, water plants JVaiadacece, 139 



213. Floating plants Aracece, 133 



Land plants 214 



214 Flowers in small dense heads Resliacecv, 140 



Flowers not in small dense heads 215 



215. Stamens 0, or more Aracece, 138. Juncacece, 134 



Stamens less than 6 Alistnacece, 137 



216. Stem solid Cyperacece, 141 



Stem round and hollow Graminaoece, 142 



