Structure, etc., of Epiphegus Virginiana. 



367 



Number of 



Number of cleistogamic Number of Number of 



axes of flowers on lower chasmogamic cleistogamic 



inflorescence, part of axis. flowers. flowers beyond. 



10 a 22. 



b 14. 



c 16. 



d* IS. 



et IS- 



f IS. 



g 17- 



h IS. 



it 14. 



J 15. 



•IS- 

 IS. 

 -13. 

 .12. 



. 9. 

 .13. 

 .11. 

 . 0. 

 .12. 

 ■13. 



158 II 



* Three small branches, all cleistogamic. 

 t Two small branches, all cleistogamic. 

 t Three small branches, all cleistogamic. 



• 3 

 . I 

 . I 

 . 2 

 . 3 

 - 3 

 . 2 



. I 

 ■ 3 



19 



The cleistogamic flower is quite small, rather flattened 

 and zygomorphic, especially in its older state. It is raised 

 on a short peduncle, and is set obliquely against the main 

 axis. Just below the calyx are two small lateral tooth-like 

 bracts and one large central one. The calyx is relatively of 

 large size, is synsepalous and shows five tooth-like lobes 

 aJong its upper margin. Above is set the small cap-like 

 asymmetric corolla, fitting down within the lobes of the 

 calyx. On its inner surface arise four small stamens, two 

 being larger than the others. A well-developed ovary fills 

 most of the flower cavity. Posteriorly arises a single style. 

 It curves forward under the corolla cap, and bends dovra so 

 that its stigma lies between the four anteriorly set stamens. 

 Around the anterior base of the ovary a considerable nectary 

 is developed. This probably represents the fifth stamen. 



In the chasmogamic flower, the calyx and ovary are 

 almost exactly similar to those above. The unlikeness lies 

 in the structures of the distal region of the flower. The 



