1892. Evolution in Methods of Pollination. 41 
the prothallium or sexual generation always grows is sufficient 
to carry them, sometimes at least, to the germ cells of dis- 
tinct plants. The wind, too, helps as the means of scattering 
a primitive method common among degraded water plants 
‘Such as Vallisneria and many Naiadacee. 
The very Tact that whole orders of endogens have this char- 
wider among phanerogams) and the compara- 
En riety of the Cyperaceze, Graminee, Juncacee, 
os and Typhacee point*to the one “conclusion, that 
se 
ing pl 
