THE UICOTYLEDOXES 



1771 



Brazil which is the source of Tulip Wood, and Lagerstroemia flos-reginae, an 

 important timber of eastern India. A constant feature of the stem anatomy 

 is the presence of internal phloem and of bicollateral vascular bundles. 



Lazvsonia inermis occurs widely in the tropics. The leaves provide the 

 cosmetic henna, which is used in the East to stain the fingernails red and as 

 a hair wash. A similar red dye is obtained from the flowers of Woodfordia 

 floribunda. 



In the Punicaceae is the important genus Pufiica with two species, one 

 of which, P. granatiim (Fig. 1657), is the Pomegranate. It occurs wild from 

 the Balkans to the Himalayas, and has been cultivated since earliest times 

 on account of the fruit. This fruit (Fig. 1658) is a berry, with a thick 

 leather}' coat, which is divided into chambers by the thin walls of the carpels. 

 The flesh of the fruit is derived from the pulpy outer coat of the seeds. It 

 contains a refreshing, somewhat acid juice. 



Fig. 1657. — Piinica granatitin. 

 Pomegranate. Flowers on 

 bush. 



Fig. 1658. — Piinico gramtiim. Shoot with 

 ripening fruit. Photograph supplied 

 by courtesy of the Florida Agri- 

 cultural Experiment Station. 



The Haloragidaceae (Myriophyllaceae) area small family containing 

 seven genera and about 170 species. In Britain the family is represented by 

 the genus MyriophxUum. It contains submerged water plants with whorls 

 of much divided leaves, which are developed on shoots arising from creep- 

 ing rhizomes. These leafy stems contain large air cavities. The inflores- 

 cences project above the water and the flowers are anemophilous. Hiber- 

 nating winter buds are often produced. 



