Key to Families 



Page 



r 



ll | r.'M'iit 

 1. Flowers single or in clusl 



!'.!.d> .1 



(1) Ovary superior 



(a) Pistils several-many, simple 

 (t>) Pistil 1, compound 



\. Sepals screen, or still and <l ry , unlike tlit petals 

 (\) Air plants with gray foliage 

 (y) Land plants with green leaves and sepals 

 \ . Sepals and petals similar in color and texture 



(x) Sepals and petals very small, scale-like, usually greenish 



brown 

 (y) Sepals and petals not scale-like nor greenish brown 

 m. Aquatic plants, flowers irregular 

 n. Land plants, flowers regular or nearly so 



(2) Ovary inferior 



(a) Aquatic, leaves submerged, flowers floating 



(b) Not aquatic 



\. Stamens 3-6, Bowers regular or moderately irregular 

 (x) Stamens 6 

 (y) Stamens 3 

 y. Fertile stamens 1-2, flowers very irregular 

 (x) Stamen not attached to style, seeds few 



(y) Stamen or stamens attached to the style, seeds very numer- 

 ous 

 b. Petals 4 or more 

 (I) Petals separate 



(a) Petals 4 



x. Flowers regular 



(x) Stamens 4, at least the anther-bearing ones 

 (y) Stamens 6 or more 

 m. Stamens 6 

 n. Stamens 8 or more 

 (m) Stamens 8-10 

 r. Fleshy plants 

 5. Not fleshy 



(r) Ovary superior, i.e. within the other parts 

 h. Pod bladdery ; flowers white 

 i. Pod not bladdery ; flowers yellowish 

 (s) Ovary inferior, i.e. below the other parts 

 (n) Stamens 12 or more 

 y. Flowers irregular 

 (x) Stamens many 

 (y) Stamen 1 



(b) Petals 5 or more 

 x. Petals 5 



(x) Flowers regular 

 m. Pistils few-many 



(m) Plants fleshy; stamens few 



Alismaceae 



44 



Bromcliaceae 



61 



Commclina 



46 



Juncaceae 





Po ntedcriaceae 



48 



Liliaceae 



46 



H ydrocharitaceae 



45 



Amaryllidaceae 



59 



Iridaceae 



60 



Cannaceae 



61 



Orchidaceae 



61 



Ha m a m elidaceae 



28 



Brassicaceae 



3 



Crassulaceae 



27 



Sapindaceae 



28 



Rutaceae 



12 



Onagraceae 



28 



Resedaceae 



4 



Ranunculi 



1 



Onagraceae 



28 



Crass:/ 



27 



