KEY TO THE ORDERS. XV 



HAMAMELACE^E. Shrubs. Stamens 8 ; styles 2. Flowers 



yellow, in autumn 79 



HALORAGE.E. Aquatics. Stamens 4 or 8. Styles or ses- 

 sile stigmas 4 '... 79 



OXAGRACE.E. Flowers symmetrical. Stamens 2, 4, or 8. 



Stigmas 2 or 4, or capitate. 81 



MELASTOMACE.E. Anthers 1-celled, opening by a pore at 

 the apex. Stamens 8. Style and stigma 1. Flow- 

 ers purple 84 



LYTHRACE^E. Calyx apparently adherent to, but really 

 free from, the ovary. Stamens mostly unequal. 

 Leaves mostly whorled. Flowers varying as to 

 relative lengths of stamens and style 84 



CUCURBITACE^E. Tendril-bearing herbs. Flowers monoe- 

 cious 85 



(6) Stamens epigynous (on the ovary, or on a disk which covers 

 the ovary). 



Euonymus, in 



CELASTRACE^E. Shrub, with 4-sided oranchlets, not climb- 

 ing. Leaves simple. Pods crimson when ripe. 

 Calyx not minute 46 



UMBELLIFER^:. Flowers chiefly in compound umbels. 

 Calyx very minute. Stamens 5. Styles 2. Fruit 

 dry, 2-seeded 87 



ARALIACE^:. Umbels not compound ; but sometimes pan- 

 icled. Stamens 5. Styles usually more than 2. 

 Fruit berry-like 92 



CORNACE^;. Flowers in cymes or heads. Stamens 4. Style 



1 93 



2. Calyx inferior (i.e., free from the ovary), 

 (a) Stamens hypogynous (on the receptacle). 



CRUCIFER^. Petals 4. Stamens 6, tetradynamous. Pod 



2-celled 16 



CISTACE^:. Petals 3. Sepals 5, very unequeal ; or only 3. 



Pod partly 3-celled 29 



DROSERACE^E. Leaves radical, beset with reddish glandu- 

 lar hairs. Flowers in a 1-sided raceme 30 



Elodes, in 



HYPERICACE.E. Leaves with transparent dots. Stamens 



9, in 3 clusters 30 



