24  BrowNn: APOGAMY IN PHEGOPTERIS POLYPODIOIDES 
hairs or outgrowths frequently formed at the base of the first 
leaf or leaves of the young sporophytes. Fics. 1-4 show the 
development of one of these apogamous sporophytes. In this 
case the prothallium was lobed and the apogamous sporophyte 
developed at the center of the cushion as a cellular mass (FIG. 1). 
From this cellular mass, seven normal leaves were developed 
before a root was formed. Soon after the first root formed, 
another began to develop (Fic. 4). Meanwhile the old prothall- 
ium became greatly reduced in size. The subsequent growth 
of the apogamous sporophyte was normal and rapid. Fics. 
5 and 6 represent other examples of apogamous sporophytes. 
