SYSTEMATICAL BOTANY. 



235. 

 236. 

 237. 



238. 

 239. 

 240. 

 241. 

 242. 

 243. 



244. 



245. 

 246. 

 247. 



248. 

 249. 

 250. 

 251. 

 252. 

 253. 



Leaves alternate . EBENACE.E. 

 Leaves opposite . 236 



Fruit didymous . GALIACKS. 



Fruit not didymous CAPRIFOLIACKS:. 

 Stem cylindrical, unbranched 



CYCADACILE. 



Stem conical, branched . . 238 



Fruit solitary . . TAXACE.E. 



Fruit in cones . . PINACE^E. 



Ovary inferior . . . 240 



Ovary superior . . 246 



Flowers gynandrous ORCHIDACKE. 

 Flowers not gynandrous . 241 



Anther 1 ... 242 



Anthers more than one . 243 



Anther one-celled . MARANTACELE. 

 Anther two-celled ZINGIBERACKS. 

 Veins of leaves diverging MUSACEJE. 

 Veins of leaves straight . 244 



Veins of leaves netted DIOSCOREACILE. 

 Stamens 3 . . IRIDACE^E. 



Stamens 6 . . 245 



Stamens more than 6 



HYDROCHARACE.E. 

 Sepals petaloid . AMARYLLIDACE^E. 

 Sepals herbaceous BROMELIACE.S:. 

 Flowers glumaceous . . 247 



Flowers regular . . 248 



Sheaths of leaves slit GRAMINACE^. 

 Sheaths of leaves closed 



CYPERACE.E. 



Leaves netted . . SMILACE^. 

 Leaves straight-veined . 249 



Carpels disunited . . 250 



Carpels consolidated . . 259 

 Placentae dhsepimental BUTOMACBL&. 



Placentae axile . 

 Flowers imperfect 

 Flowers perfect 

 Flowers on a spadix 

 Flowers scattered 

 Fruit drupaceous . 

 Fruit berried 

 Fruit dry , 



. 251 

 . 252 

 . 257 

 . 253 

 . 255 



PANDANACEJE. 



. ARACE.S. 



. 254 



254. Stamens very short . ACORACEJE. 

 Stamens long, weak . TYPHACE.E. 



255. Floating . . .256 

 Terrestrial . JUNCAGINACE.E. 



256. Ovules pendulous . NAIADACE/E. 

 Ovules erect . . PISTIACE-E. 



257. Anthers turned outwards 



MELAXTHACE^E. 

 Anthers turned inwards . 258 



258. Stems herbaceous . ALISMACE^E. 

 Stems woody . PALMACE^E. 



259. Flowers seinipetaloid 



COMMELINACE.E. 

 Flowers hexapetaloid . . 260 



260. Flowers coloured . . LILIACEJE. 

 Flowers scarious . JUNCACE^E. 



261. Axis distinct, leafy . . 262 

 Axis distinct, leafless CHARACE^E. 

 Axis confused . . .268 



262. Sporangia upon leaves FILJCALES. 

 Sporangia arising from the stem 263 



263. Sporangia involucrate . . 264 

 Sporangia naked . .265 



264. Involucres uniform 



MARSILEACEJE. 

 Involucres 2-formed SALVINIACE^E. 



265. Sporangia axillary, sessile, 2- 

 valved . . LYCOPODIACEJE. 



Sporangia stalked . .266 



266. Sporangia valveless . BRYACE^:. 

 Sporangia valvate . . 267 



267. An operculum . ANDR.EACE.S. 

 No operculum JUNGERMANNIACELE. 



268. Stomates . . . 269 

 No stoniates . . . 270 



269. Sporangia valvate, operculate 



JUNGERMANNIACE.E. 

 Sporangia valveless, without an 

 operculum . MARCHANTIACE^E. 



270. Submersed . . ALGACK^E. 

 Aerial . . .271 



271. Thallus superficial LICHENACKS. 

 Thallus buried 



