KEY TO THE ORDERS. Xlll 



Podophyllum, in 



BERBERIDACE^. Calyx fugacious. Leaves large, peltate, 



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



4_4_ Pistil syncarpous. (Stigmas, styles, placentas, or cells, 

 more than one). 



Aetsea, in 



RANUNCULACE.E, might be looked for here. Fruit a 



many-seedy berry. Leaves compound 2 



NYMPH^EACE^E. Aquatics. Leaves floating, large, deeply 



cordate 12 



SARRACENIACEJE. Bog-plants. Leaves pitcher-shaped .. 13 



PAPAVERACE.E. Juice red or yellow. Sepals 2, caducous. 14 



CAPPARIDACE^:. Corolla cruciform, but pod 1-celled. 



Leaves of 3 leaflets 25 



HYPERICACE^E. Leaves transparent - dotted. Stamens 



usually in 3, but sometimes in 5, clusters 30 



CISTACE.E. 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 



TILIACE^E. Trees. Flowers yellowish, in small hanging 

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

 tached 39 



* * Stamens perigynous (inserted on the calyx). 

 Portulaea, in 



PORTULACACE^E. Low herbs, with fleshy leaves. Sepals 

 2, adhering to the ovary beneath. Pod opening 

 by a lid , 37 



ROSACES. Leaves alternate, with stipules. Fruit apo- 

 carpous, or a drupe, or a pome ... , 62 



CACTACE^:. Very fleshy (commonly prickly) plants, of 

 peculiar appearance ; either globose or of flattened 

 joints. Sepals and petals many. Stamens many, 

 inserted on the tube of sepals and petals 86 



* * * Stam.ens epigynous (attached to the ovary). 



Nymphaea, in 



NYMPILEACE.E. Aquatic. Leaves floating. Flowers 

 white, large, with numerous petals gradually 

 passing into stamens ; 12 



