552 



PART IV. CLASSIFICATION. 



Cohort III. Myrtales. Flowers usually actinomorphic, 

 encyclic, epigynous or perigynous, with usually two whorls of 

 stamens, typically obdiplostemonous : gynseceum syncarpous, with 

 usually a single style : leaves usually opposite. 



Order 1. OXAGRACE.E. Flowers usually tetramerous through- 

 out, generally epigynous : antipetalous stamens sometimes sup- 

 pressed : ovary multilocular, with generally numerous ovules on 

 axile placentae : fruit a berry or a capsule ; seed without endo- 

 sperm. Calyx often petaloid, forming a long tube (Fig. 364 A, r). 



C 



FIG. 364. .4 Flower of Fnchsia : s pedicel ; / inferior ovary ; fc sepals, connate at the 

 base, forming a tube (r) ; a stamens ; g style; n stigma. B Flower of Epilobtum hirsutum 

 (letters as before). C Fruit of Epilobium after dehiscence ; w outer wall ; m columella 

 formed by the septa ; so seed with tufts of hairs (nat. size). 



(Enothera biennis, the Evening Primrose, occurs on river banks: the seed 

 has not a tuft of hairs, and the flowers are yellow. Epilobium is the 

 Willow Herb, of which many species are common ; E. angustifolium, 

 hirsutum, and montanum occur in fields, hedges, and ditches; the seeds 

 have a tuft of long hairs (see p. 416) ; flowers red ; fruit a septifragal 

 capsule. Ciraxa lutttiana (Enchanter's Nightshade) has dimerous flowers 

 K2 C2, A2, G(y (Fig. 270 B) ; common in damp and shady spots. Isnardia 

 palustris has no corolla ; its fruit is a septicidal capsule. Fuchsia (Figs. 

 364 A, 270 A), many species of which are cultivated as ornamental plants, 

 is a native of South America ; fruit a berry. 



Trapa natans, the Water-Chestnut, a not vei-y common water-plant 

 of Central Europe, has a stem bearing a rosette of leaves which float 



