MICROSPERME.E 287 



The honey is half-concealed among the staminodes, 

 which act as honey-glands in the male and female 

 alike. Male flowers are absent in N. Europe, but 

 are found in Central Europe. Propagation is largely 

 effected by offsets. 



The fruit is dispersed by the agency of water. 



Though not a common plant several vernacular 

 names are cited for the Water Soldier by Britten and 

 Holland, as Crab's Claw, Fresh-water Soldier, Water 

 House-leek, Knight's Pondweed, Knight's Water 

 Sen-green, Knight's-wort, Knight's Woundwort, 

 Water Pine, Knight's Pondwort, Water Sen-green, 

 Soldier's Yarrow, Water Soldiers, 



Stratiotes aloides. — The ilhcstration (Fig. yy) 

 gives an excellent idea of the habitat of the plant, and 

 also of its habit, the Water Soldier being a half -submerged 

 type which, however, at certain seasons, is totally sub- 

 merged. 



76. The Orchid Group (Summary). 



{Introductory Volume, p. ig8.) 



Probably no other group of plants contains such 

 beautiful and wonderful types as the Order Orchid- 

 aceae. In the Introductory Volume the Spotted 

 Orchid was selected as a type of the group. In this 

 volume the Bog Orchid, Tway Blade, and Lady's 

 Slipper are described. 



The number of Orchids is at least five thousand 

 and there are four hundred genera. They are most 



