KEY TO THE ORDERS 



Stamens a* many a* the petals and opposite them. 

 Flowers monoecious. 



Eupborblaceae In Order EUPHORBIALES. 

 Flowers perfect. 



Ovules, or seeds, several or many : embryo colled. 



Portulacaceae In Order CHENOPODIALES. 

 Ovules, or seeds, solitary : embryo straight. 



Plumbaglnaceae in Order PRIMULALEB. 

 Stamens as many as the petals and alternate with them, or 



more, sometimes twice as many. 

 Stamens 6 : petals 4 : sepals 2 or 4. 



Families In Order PAPAVEHALES. 

 Stamens, petals and sepals of the same number, or stamens 



more, usually twice as many as the sepals or petals. 

 Ovary 1-celled. 



Ovules, or seeds, on basal or central placentae. 



Families In Order CHENOPODIALES. 

 Ovules, or seeds, on parietal placentae. 

 Stigmas 2-cleft or brush-like 



Anther with an Inconspicuous connective. 

 Stigmas not brush-like. 



Droseraceae in Order SARRACENIALES. 

 Stigmas brush-like. 



Turneraceae In Order HYPERICALES. 

 Anther with the conspicuous connective pro- 

 duced beyond the sacs. 



Papayaceae In Order PABSIFLORALES. 

 Stigmas entire. 



Stamens with united filaments and no 

 stamlnodla. Families In Order MALVALES. 

 Stamens with distinct filaments. 



Families In Order HTPERICAI.ES. 

 i > v n ry se vera 1 -eel I ed. 



Stamens adnate to the gynoeclum. 



Asclepladncone In Order ASCLEPIADAI.ER. 

 Stamens not ndnate to the gynoeclum. 



Stamens with wholly or partly united filaments. 

 Anthers opening lengthwise. 



Famines In Order GERANIALES. 

 Anthers opening by pores. 



Polygalaceae In Order POLTOALALES. 

 Stamens with distinct filaments. 

 Anthers opening by pores. 



Families in Order KHICAI.ES. 

 Anthers opening by silts. 



or styles distinct and cleft. <>r 

 illaceous, or united by pairs. 



OnliT Ki riioRRiAl.ES. 

 Stlgmns or styles nil <llstln.-t ..r .-ill united, 



tiflthrr i-li-ft nor foliar' 

 Stamens 2. Oleaceae In Order OI.EAUCS. 

 Stamens more than 2. 



Leaves with compound blade*. 



1'amlllfH In oni.T GERAMAIJCS. 

 Leaves with simple blades. 



Ovule solitary In each carpel. 



Families In Order GERANIAI.KH. 

 Ovules 2 or more In each carpel. 

 n.-i.'.-iitne parietal. 

 Clstnceae 



In Order HTPERICAI.ES. 

 Placentae nxlle or central. 

 TIBl 



In order MAi.VAt.En. 

 tSStamens Inserted on the margin of n disk or liypanthlum (|HT|K\II..H 



T hypOfj-noM). 



Stamens as many as the petals and opposite them. 

 Ovules and seeds numer-m* 



Morlngaceae In Order PAPAVEBALEM. 



Ovules and seeds solitary <.r -j or.l.-r RIIAMNALBS. 



Stamens as many as the petals and alternate with them, or more 



or raauy. 



Styles dlstlnrt. Order SAPINDAI.EI. 



Style* uni 



llypanthlnm flat or obsolete: disk fleshy. 



Stigmas 

 foil ace 



