ANALYTICAL K*t . bdx 



Perianth simple or none, 



/'Floating or submerged plants 80 



g. I Terrestial herbs, or, if aquatic, erect from the bottom of the 



1 water, and projecting from it 93 



{.Trees or shrubs 141 



1. Floating Aquatic Plantt. 



(Small leaf-like fronds, attached two or three together, and 

 floating without any stem .... LEMN \ (p. 421). 

 Leaves and flowers growing out of a distinct stem . . .87 

 f, 7 ( Leaves deeply divided into capillary lobes .... 88 

 \Leavesentire 89 



{Leaves pinnately divided. Perianth 4-lobed. MrBIOPHYL- 

 LUM (p. 173). 

 Leaves repeatedly forked. Perianth nout or many-lobed. 

 Cii'.tATOPHYLLUJI (p. 397). 



I Leaves opposite or whorled 90 



aql Leaves in a radical submerged tuft 136 



1 Leaves radical in floating tufts . . . HYDBOCHABIS (p. 434). 



V Leaves alternate 92 



/"Tube of the flower long and thread-like, resembling a pediceL 



92 



93 



NAIADES (p. 423). 

 ale, the lower female. 



flo , ofiLODEA (p. 433). 



I Flowers sessile, or nearly so, in the axils of the leaves, or in 

 1 stalked heads or spikes, without any stalk-like tube . . 91 



One 4-lobed ovary. Two styles . . . CALLITBICHE (p. 397). 

 91 -I Four ovaries, with distinct styles or stigmas NAIADES (p. 423). 



One simple ovary and style .... HlPPUBIS (p. 174). 



Flowers axillary. Perianth none, or of 4 small scales. 



Flowers in globular heads, the npper head m 



Perianth none, or of 1 to 6 small scales SPABOANIUM (p. 419) 



Flowers glumaceous. Stamens 2 or 3 SciRPUS fluitans (p. 484). 



Perianth of 6 parts. Stamens 6. . JUNCUS articulatua (p. 471). 



Perianth of 5 parts. Stamens about 5 PoLYGONUMowipAt"6mm(p.386). 

 2. Terrcstiol Herbs, or, if Aquatic, erect. 



Flowers hermaphrodite, containing one or more ovaries and 

 one or more stamens 94 



Flowers diclinous, the stamens and ovaries either in separate 

 perianths, or intermixed or variously arranged on the same 

 spike, or within the same involucre, but separated by single 



scales only, without distinct perianths 125 



( Stamens more than 6 95 



\ Stamens 6 or fewer 102 



Stamens indefinite, usually numerous ..... 96 



Stamens about 12 97 



Stamens 7 to 10 98 



Stamens inserted on the receptacle. Ovaries numerous. 



KANUNCULACE^K (p. 1). 



Stamens on the calyx. Ovaries few or single ROSACES (p. 127). 



Perianth 8-lobed. Capsule sessile . . . ASARUM (p. 390). 



Perianth (involucre) with 5 small lobes or teeth. Capsule 

 stalked EUPHORBIA (p. 891). 



96 



97 



