: 



'ii 



1 14 rOPILAK FI.OMA. 



Stylo nonf : HtiKmnii 4 in fi : corolln very Hhort, tU-i'plf cleft, 

 tiiylis I, iiiiely a, Honictiim^H a cltft <»r 3-clrft. 



Oviiry ilet>|ily 4-loli(>il, in fruit tnukiiiK 4 iikuiic*. 

 HtiuiifiiH 4. Li'itvi'H i>|(|>i)Hiti', iiMirniit'c, 

 StaiiKMiM K,. LtNtvfM itltin iiatc, not itrutimtic, 

 Ovnry nml jiuil i-c)-llf<l : tliu Nt-tMin on tUv wall*. 

 I.eiiVfH IhIhmI or cut. Htylo a-cleft ahov«, 

 L'avL'i entire and opiiositc, ur alternate, with the j leaflets on 

 Ovary and fruit with two or more eelU. 



Htainena 4, loii^. KlowerN in 11 cIohc Hpike, 

 HtnniehH 5. I'o.l or lieiry inany-Heeiled. 



Flower not (piite rej^iiKir. Style entiie, 

 Flower (|uite re^^ular : HtaineuH nil alike, 

 Stnnieiis 5. I'od few-Heeded. 



Twiniii}; lierb.s. Seedn large, 



Knict or Hpreailing lierlm. Style 3-cleft at tlie top. 



3. Stdincn.'i 2 or 4, ulirai/n frifiv thin the Inbrs 0/ tlic romlht or cnh/x. 



Corolla more or le-iH irreijnlar, mostly 2-lipped. 



Ovary 4l(>l)i'd, making' 4 alu-nes. Steins H(juaro; leaveH opposite, aromatic, SAGKor MlNT 



Ovaiy and fruit 4-celled and 4-seeded. StanienH 4, (^ 



Ovary rcelleil, nuikin;,' i akene. StameiiH 4, ) 



Ovary and poil i-oelled. many-seeded (»n the walls. No green leaves, 



Ovary and pod zcelled, with many large and winged seeds, ) 



Ovary and fruit irrcgulaily 4- to 5-celled. with many large seeils, ) 



Ovi'.ry and pod a-celled, with many or few small seeds, 



Corolla regular. Stamens only 2. Woody phdits. 

 ('<irolla 4-lobod or 4-i>arted, 

 Corolla 5-lobed, salver-shaped. 



f 



I 





III. Apetalous Division. Corolla none : somotimts the calyx also wantinp. (Those 

 vhich are merely apetalous forms of the piecedint,' divisions an; marked f.) 



A. Floweiw not in Catkinh, ok Catkin-mkk Hkads. 



1. Sciils manij in each cell of the ovary or fruit. 



Calyx with its tuho coherent to the 6-celled ovary, TJlHTHWORT F. T94 



Calyx free from the ovary. 



l'o<l s-celled, 5-horned, 



Pod 3-celled or I -celled with three or more styles, 



Pod or berry i -celled and simple, 



Ditchwort in tSroNKCRop F. 160 



Carpetweed, &c., in fPlNK F. 133 



tCKOWFOOT F. 116 



2. Seida only one or two in each cell of (he ovary or fruit. 



Pistils more than one to the flower, and separate from each other. 



Calyx present and petal-like. Stamens on the receptacle, fCBOWrooT F. 116 



Calyx present ; the stamens inserted on it. Leaves with stipules, fKosB F. 150 



