KEY TO THE ORDERS. xiii 



Podophyllum, in 



BjSEBERlDACEvE. — Oalyx fugacious. Leaves large, peltate, 



deeply lobed. Fruit a large fleshy berry, 1-oelled. 10 



+- +- Pistil syncarpous. (Stigmas, styles, placentce, or cells, 



more than one). 

 ActSBa, in 

 RANnucuLACE^, might be looked for here. Fruit a 



many -seedy berry. Leaves compound 2 



Nymph^;ace^. — ^Aquatics. Leaves floating, large, deeply 



cordate ] 2 



Sahkacen'IACe^. — Bog-plants, Leaves pitcher-shaped . . ];< 



Papaverace^. — ^.luice red or yellow. Sepals 2, caducous. 14 



Cappabidaoe^. — Corolla cruciform, but pod 1-celled. 



Leaves of 3 leaflets 2j 



Hypericace^. — Leaves transpstrenfe - dotted. Stamens 



usually in 3, but sometimes in 5, clusters 30 



CiSTACEJS. — Sepals 5, very unequal, or only 3. Ovary 1- 



celled, with 3 parietal placentae 29 



Malvaceae. — Stamens monadelphous, connected with the 

 bottom of the petals. Calyx^persistent. Ovaries 

 in a ring 38 



TiLlACE^. — Trees. Flowers yellowish, in small hanging 

 cymes; the peduncle with a leaf-like bract at- 

 tached , 30 



* * Stamens perigynous (inserted on the calyx). 

 Portulaea, in 



PoRTULACACB*. — Low herbs, with fleshy leaves. Sepals, 

 2, adhering to the ovary beneath. Pod opening 

 by a lid , - 37 



RoSAOE.ls. -^Leaves alternate, with stipules. Fruit apo- 

 carpous, or a drupe, or a pome -. 6'2 



Caotacb.*;. — Very fleshy (commonly prickly) plants, of 

 peculiar appearance ; eitlier globose or of flattened 

 joints. Sepals and petals many. Stamens many, 

 inserted on the tube of sepals and petals 86 



* * * Stamens epiijynous (attached to the ovary). 

 Nymphsea, in 



Ntmph^ace^. — Aquatic. Leaves floating. Flowers 

 white, large, with numerous petals gradually 

 passing into stameug .,.,., ,,,..,,..,,,. 13 



