ClassificatiiVi of Plants 203 



Series II. — Disciflorae. 



A. Stamens beneath the disk forming a ring or 

 broken up into glands. 



Flowers often zygomorphic ; leaves not 

 gland-dotted ; disk extended between the 

 i-seeded carpels ..... Geraniace^.^ 



Flowers mostly regular ; leaves gland- 

 dotted ....... RUTACE.'E. 



AA. Stamens within or on the niargin of the 

 disk ; sometimes beneath. 

 Trees or shrubs often spinous ; leaves 



simple, opp. or alt. ..... Celastri.ne.'e. 



Trees or shrubs often spurous ; leaves al- 

 ternate, mostly pinnate ; disk often at one 

 side ........ Sapindace.^. 



Series III. — Calyciflorae. 



A. Pistil apocarpous, superior (except in some 

 Rosacese) ; stamens perigynous. 

 B. Carpel I ; fruit a legume . . . Leguminos.i:. 



BB. Carpels two or more (South African 

 genera). 

 Stamens numerous ; leaves stipulate . Rosace.^. 

 Stamens 4-10 (S. A.) ; carpels 4-7 . Crassulace^e. 



AA. Pistil syncarpous, ovary inferior (except in 

 some Ficoidese). 

 Petals (staminodia) numerous ; embryo 



curved; plants with fleshy leaves . . Ficgide.e.^ 

 Petals 4; calyx (receptacle) with a long tube 



extending beyond the ovary, many seeded Onagrarie.^.^ 

 Petals 5 ; 2-celled, 2-seeded flowers in umbels Umbellifer.'E. 



Group 2. — Gainopetala. 



A. Ovary inferior. 



B. Stamens inserted on the corolla tube. 

 C. Ovary i-celled, i-ovuled ; flowers in 

 heads, leaves, ex-stipulate. 

 Stamens 4, free; o\'ule pendulous. 

 Heads definite, leaves opposite . . Dipsace.e. 

 Stamens 5, anthers united ; ovule erect ; 

 heads indefinite .... Composit.^. 



1 Including Oxalidace.e. = Aizoaceie — Engler. 



^ Oenotheraceae, Engler. 



