KEY TO THE ORDERS. XV 



Hamamelace^.— Shrubs. Stamens 8 ; styles 2. Flowers 



yellow, in autumn , . 79 



HALORAOEiE. — Aquatics. Stamens 4 or 8. Styles or ses- 

 sile stigmas 4 ' 79 



On-agbaoe^. — Flowers symmetrical. Stamens 2, 4, or 8. 



Stigmas 2 or 4, or capitate 81 



Melastomace^. — Anthers 1-oelIed, opening by a pore at 

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

 ers purple 84 



LythracEjB. — 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^. — Tendril-bearing herbs. Flowers monos- 



''cipus 85 



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

 the ovary J. 



Euonymus, in 



Celasthace.?::. — Shrub, with 4-sided oranchlets, not climb- 

 ing. Leaves simple. Pods crimson when ripe. 

 Calyx not minute 46 



Umbellifbr^. — Flowers chiefly in compound umbels." 

 Calyx very minute. Stamens 5. Styles 2. Fruit 

 dry, 2-seeded 87 



Abaliace^e. — Umbels not compound ; but sometimes pan- 

 icled. Stamens 5. Styles usually more than 2. 

 Fruit berry-like 92 



CoENACE/i;. — Flowers in cymes or heads. Stamens 4. Style 



1 ,. .., 93 



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

 {ay Stamens hypogynous (on the receptacle). 



Crucifeb^. — Petals 4. Stamens 6, tetradynamous. Pod 



2-Gelled 16 



Cistace>«. — Petals 3. Sepals 5, very unequeal ; or only 3. 



Pod partly 3-celled 29 



Drosebace^. — Leaves radical, beset with reddish glandu- 

 lar hairs. Flowers in a 1-sided raceme 30 



Elodes, in 



Hypeeicace^. — Leaves with transparent dots. Stamens 



9, in 3 clusters 30 



