700 SYSTEMATIC BOTANY. 



Artificial Analysis of the Natural Orders of MoxocoTVLEDoyEs. 



Modifiedfrom Lindley. 



(The numbers refer to the respective Orders, as previously described.) 



Sub-class I. — JDictyogence. 



A. Ovary inferior. 



Flowers unisexual Dioscoreace<s. 242. 



B. Ovary superior. 



a. Placentas basal Roxhurghiacece. IKh. 



b. Placentas axile. 



Leaves whorled, not articulated . . . Trilliacece, 244. 

 Leaves not whorled, articulated . . . Smilacets. 243. 



c. Placentas parietal Philesiacece. 246. 



Sub-class n. — Petaloidea. 

 1. Flowers with an evident Perianth. 



A. Ovary inferior (Epigyncc). 



a. Flowers gynandrous. 



Ovary 1 -celled. Placentas parietal . . . Orchidace<e. 247. 

 Ovary 3-celled. Placentas axile . . . Apostasiacete. 248. 



b. Flowers not gynandrous. 



1. Veins of leaves diverging from the midrib, 



and parallel to each other. 

 Embryo enclosed in a vitellus. 



Anther 2- celled. Filament one, not petaloid Zingiberacece. 2hQ. 

 Embryo not enclosed in a vitellus. 



Anther I-celled. Filament one . . . Marantacece. 251. 



Anther 2-celled. Filaments more than one Musacece. 252. 



2. Veins of leaves diverging from the base, and 



parallel to the midrib. 

 Stamens 3. 



Anthers extrorse Iridacece. 253. 



Anthers introrse Burmanniacece. 249. 



Stamens 6. 

 Anthers extrorse ...... Burmanniacece. 249. 



Anthers introrse. 



Leaves equitant Heemodoracece. 256. 



Leaves flat. 



Fruit 1 -celled Taccacete. 257. 



Fruit 3-celled. 



Outer whorl of the perianth petaloid. 

 Badicle next the hilum. Leaves not 



dry Amaryllidace<E. 254. 



Radicle remote from the hilum. 



Leaves dry Hypoxidacece. 255. 



Outer whorl of the perianth not pe- 

 taloid Bromeliacece. 258. 



Stamens more than G Hydrocharidacece. 280 



B. Ovary superior (Jlvpogynce). 



a. Outer whorl of the perianth herbaceous or glu- 

 maccous. 

 Carpels more or less distinct. 

 Seeds attached over the whole inner walls of 



the fruit Butomacece. 272. 



Seeds attached to axile or basal placentas. 

 Flowers conspicuous. Embryo curved, with- 

 out a slit Alismacece. 271 . 



Flowers inconspicuous. Embryo straight, 

 with a lateral silt Juncaginacece. 270. 



