KEY TO THK ORDERS. XV 



Ha.mamelacejE. — Shrubs. Stamens 8 ; styles 2. Flowers 



yellow, in autumn 79 



Hai,obaqe.«i. — Aquatics. Stamens 4 or 8. Styles or ses- 

 sile stigmas 4 79 



ONAGRACEiB. — Flowers symmetrical. Stamens 2, 4, or 8. 



Stigmas 2 or 4, or capitate 81 



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

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

 ers purple 84 



Lythrace^. — 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 



CucuBBiTAOE^. — Tendril-bearing herbs. Flowers monce- 



i. cious 85 



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



the ovary). 

 Euonymus, in 



CELASTRAOE^.^Shrub, with 4-8ided Dranchlets, not climb- 

 ing. Leaves simple. Pods crimson when ripe. 

 Calyx not minute 46 



UMBELLirBE^. — Flowers chiefly in compound umbels. 

 Calyx very minute. Stamens 5. Styles 2. Fruit 

 dry, 2-seeded 87 



ARALiACEiE. — Umbels not compound ; but sometimes pan- 

 icled. Stamens 5. Styles usually more than 2. 

 Fruit berry-like 92 



CoenacejB. — 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). 



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



2-oelled 16 



CiSTACB^. — Petals 3. Sepals 5, very unequal ; or only 3. 



Pod partly 3->el"led 29 



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

 lar hairs. Flowers in- a 1-sided raceme 30 



Elodes, in 



HTPBRICACE.S!. —Leaves with transparent dots. Stamens 



9, in 3 olnsters 30 



