Classification of Plants 



293 



from escaping. The stigmas ripen before the anthers ; b)- the 

 time the latter are ripe the hairs are 

 withered ; the insect then escapes 

 carrying some of the pollen with it. 

 The flowers are borne along an under- 

 ground rhizome which sends out 

 haustoria into its host plant. 



Cytinus has handsome scarlet 

 flowers with a six- parted perianth. 



The flowers are dicecious. The 

 pollen grains from the numerous 

 anther chambers remain in fours. 

 Found on Eriocephalus (Harvey), Aga/husma (Dr. Bolus), 

 Selago (Dr. Kolbe) and other hosts. 



Fig. 264. — Floral diagram 

 of Hvdnora. 



Fii";. 265. -H\\i/iora iifricand, R, Br,, parasite on the roots o^ En/'horNo^ 

 showing underground four-angled stem with tubercles in A, B. Section of flower 

 showing the gland {^I) which secretes an oftensi^■e substance attracti\-e to certain 

 carrion beetles ; sta, monadelphous stamens ; sti , stigma ; t>i\ pendulous ovules. 



Order Aizo.xcE.E (FicoiD-T:). 



Herbs, usually succulent, with simple petaloid perianth. 

 The ovary may be few- or many-seeded., superior or inferior. 

 The most familiar genera are Mesembrianthemum and Tetragonia. 



