M 

 fflar s *-x fif 



Apospory. A = Soral-apospory of A thyriuitt jili.\ ' /<>< ii/ii/n. 

 var. clarissima. Jones. Part of a pinnule with veins (r>/>) 

 and a sorus. In the latter, in place of the sporangia, prot hall i 

 are formed (firth) with antheridia (antli) and archegonia 

 (arch), x 40. B = apical apospory of Polystichum angular e, 

 var. />ulchertiinui>i. Padley. A prothallus at the tip <>l .1 

 pinnule, as a direct continuation of it. gl= marginal glands, f = the cushion. 

 X 20. C = the first initiation of a prothallus as in B, at the apex of a pinnule. 

 The shading indicates a vein beyond the tip of which the prothallus arise^. 

 X 130. /) = a similar growth, but borne on an elongated cylindrical process: 

 archegonia {arch) are already present. X 10. =soral apospory in Polystichutn 

 aiigiilarc, var. pulcherrimum. A prothalloid growth bearing an antheridium 

 (antli) and rhizoids (//) lias arisen frum the stalk "fa sporangium. X 70. 



