SEED-LIKE LYCOPODIACEOUS ORGANS 195 



in at the top, but leaving a narrow crevice or micropyle 

 (Figs. 81 and 82). This opening, however, differed from 

 the micropyle of ordinary seeds in not being tubular, 

 but forming a long narrow slit, extending in the radial 

 direction almost the whole length of the sporangium, 



Fig. 81. — Lepidocarpon Lomaxi. Upper part of integumented "seed," containing 

 prothallus. z", integument ; sin, wall of sporangium ; mg, membrane of megaspore ; 

 pr, tissue of prothallus ; y, possible central cell of an archegonium ; c.s, central 

 strand of prothallus. X 20. (G. T. G.) Scott, Phil. Trans. S. Coll. 1073. 



which was radially elongated, as in an ordinary 

 Lepidostrobus. A ligule was present, at the distal end, 

 just as in that genus. 



When cut at right angles to this slit-like micropyle, 

 the appearance of the sporangium with its integument 

 is altogether that of a seed (see Fig. 82), and detached 

 specimens were long known to science under the 



