PLATE XL VI. 



Figs. 



1,2. Saxifraga Ugnlata (Great Strap-leaved Saxifrage). 

 Fig. 1. — Foliage-leaf illustrating anther-structure 

 (slightly schematized). Fig. 2. — Foliage-leaf in 

 form of ascidium. (Original.) pp. 162, 165, and 180. 



3,4. Narcissus Tazetta (Polyanthus Narcissus). Fig. 3. — 

 Petaloid stamen in form of ascidium. Fig. 4. — 

 Ditto, with distinct corona-lobe, co, corona. (After 

 Celakovsky.) pp. 178-180. 



5-7. Prim it la vulgaris (Primrose). Fig. 5. — Pinnate stamen 

 bearing ovules ; lowest pinna in form of a completely- 

 organized carpel bearing a stigma ; ventral placenta 

 also present. Fig. 6. — A stamen bearing a median 

 ventral placenta. Fig. 7. — A stamen whose ventral 

 placenta is free except at extreme base. (After 

 Masters.) p. 185. 

 8. Euphorbia Cyparissias (Cypress Spurge). Flower in 

 which some stamens have become changed into 

 carpels (c). (After Schmitz.) p. 190. 

 9-10. Salix cinerea (Grey Sallow). Fig. 9. — Transitional 

 structures between stamens and carpels (from a male 

 plant). Fig. 10. — Male flower whose stamens are 

 changed into carpels. (Original.) p. 190. 

 11. S. alba var. vitellina (Golden Osier). Male flower 

 whose stamens are in different degrees changed into 

 carpels. J>, bract; an, anther; ps, pollen-sacs; cp, 

 carpel; st, stigma. (Original.) p. 19] . 



