68 



xvi LIST OF ILLUSTRATIONS. 



FIGUEE 



14. Anatomy of the floral receptacle of Ivy, showing the multi- 



plication and difEerentiation of the cords, etc. 



15. Anatomy of the floral receptacle of Campanula medium, 



showing the distribution of the cords, etc. (see fig. 8, p. 43) 71 



16. Origin and development of the ovule in Beta 73 



17. Carpels of Acer, showing the thickened bases, preparatory for 



ovules ... ... .'.. ... ... ... ••■ ••• 75 



18. A separate carpel of Primula sinensis, with marginal ovnles 



and a " heel-like " process, the origin of the free centi'al 

 placenta 76 



19. Anatomy of the floral receptacles of Lysimachia and Primula, 



showing the cords of five carpels ... 77 



20. Echitim, showing declinate stamens and protandroos condition 82 



21. Ovary, stamens, and stigmas of Aristolochia ... 83 



22. Vertical sections of buds of Pyrus and Cotoneaster, shovnng 



degrees of adhesion or undifferentiated condition between 



the ovary and receptacular tube ... ... ... ... 90 



23. Orchis Morio (?), with arrest of pistil, the receptacular tube 



represented by a rod-like pedicel. Two anthers are deve- 

 loped instead of one (a) 92 



24. Receptacular tube of Rose, bearing a leaf and a stipnlar sepal 93 



25. Vertical section of the receptacular tube of Hawthorn, with 



supernumerary carpels arising from the snmmit ... ... 93 



26. Leaves of Fear with hypertrophied and snb-fasciate petioles 94 



27. Fuchsia with f oliaceons sepals, partly detached from the ovary 94 



28. Anatomy of the receptacular tube of Primus, showing the 



origin of the petaline and staminal cords ... 95 



29. Part of the receptacular tube of Cherry, showing the distri- 



bution of cords in the sepaline lobes 97 



30. Anatomy of inferior ovary of Alstriemeria, showing the junc- 



tion between the ovary and the tube ... ... ... 97 



31. Mower of Duvemoia, showing its adaptability for intercrossing 107 



32. Flower of Calceolaria, shovring thickened ridges, etc., and 



adaptability for intercrossing .. . ... ... ,„ ... 109 



33. Flower of Dictarrmus, showing declinate stamens and displace- 



ment of petals ... 110 



34. Flower of Epilobium angustifolium, showing dependent sta- 



mens and displacement of petals ... ... Ill 



