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132 The Botanical Gazette. 
the gametes, and thus acquires a new meaning. Spores 
this type may be termed here secundospores. : 
In Gdogonium the sporophytic structures emerge. T 
well known facts of GEdogonium life history need not here 
detailed. It will be remembered that the fertilized egg und 
goes rejuvenescence and segments into usually four spor 
motile and similar to the spores of the gametophytic gent 
tion which are themselves of the secundospore type. * 
spores thus formed as the result of sporophytic segmentati 
may be distinguished very well under the name of fertiosji® 
They are characteristic of the CEdogonium series and # 
more generalized than other sporophytic spore structures 
Passing to Riccia and its allies, we encounter the f 
type of spore, from the point of view of this classification 
Riccia the segmentation of the fertilized egg proceeds unt 
structure is developed that consists not only of spores but 
enclosing, protective and more or less vegetative cells. 
ered as det 
oped from a series of reproductive cells as seen in CEdogotil# 
orope)” 
terminology, may be known as guartospores. 
While bisexuality of gametophytic plants me n o® 
without a preliminary morphological differentiati aa 
y 0! ge 
i ns 
spore, as for example in Egu?setum, nevertheless pe 
: : 
vestigated plants as Prlularia, [soetes or. Selagi™ Ni 
the so-called cryptogams and in Taxus, Lilium of yi 
among the so-called phanerogams a predeterminal 
sex of the plant to be produced, long before the * 
to produce the plant is itself mature. In_ cases 
