BIOTYPES AND HYBRIDS. 



15 



w 



y. 



^\ 



Fig. 4. Fig. 5. 



Fig. \.— Bursa bursapastoris heteris. Typical specimen from offspring of plant 

 shown in fig. 3. 



Fig. 5. — Bursa bursa-pastoris heteris. Offspring of sib of plant shown in fig. 4. 



