Fig. 28. Embryogeny in SelagimUa 

 A-D, S. kraitssiana. A, B, Archegonium, o, which has elongated into an embryo- 

 tube (Embryoschlauch, es) containing the embryo, e, at its base; /-/, the first parti- 

 tion wall of the zygote. C,D, Older embryos in l.s. E-K, S. galeottei. The embryo 

 develops deep within the gametophyte tissue at the base of an elongated embryo- 

 tube. The suspensor, su, is greatly reduced in this species, e.g. as in K. E, The first 

 wall is vertical. J, Two embryos side by side. L, S. rubricaulis. (A-D, x 225; E, 

 X 370; H-K, x 230; G, F, L, x 150; after Bruchmann). 



