Polygonum lapathifolium, 40. 

 ,, minus, 40. 



„ Persicaria, 46. 



spp., 30, 40, 83, 84; PI. VI, fig. 13-15. 

 Porotrichum, 51. 

 Potamogeton acutifolius, 38. 

 „ colovatus, 38. 



„ crispus, 38, 44. 



heterophyllus, 44. 

 natans, 44. 

 ,, obtusifolius, 44. 



pectinatus, 38, 44. 

 „ pevfoliatus, 44. 



„ praelongus, 44. 



„ pusillus, 38, 44. 



„ tenuicavpus, 58. 



„ trichoides, 4:4:. 



spp., 27, 28, 58-61; PL II, figs. 1-11. 

 Potentilla argentea, 41. 

 „ silvestris, 47. 

 Prain, D., 3. 

 Preservation of seeds, 3. 

 Primulaceae, 129. 

 Proserpinaca pectinata, 123; PL XIV, fig. 20. 



reticulata, 34, 86, 123; PL XIV, figs. 14-19. 

 Proteaceae, 81, 82. 

 Prunus cf. lusitanica, 41. 

 domestical 101. 

 Lauvocevasus, 103. 



Maximoviczii, 16, 25, 32, 41, 102; PL IX, figs. 32-34. 

 Rambuvii, 32, 102. 



spznosa, 17, 32, 41, 47, 101; PL IX, figs. 21-24. 

 spinulosa, 32, 102; PL IX, figs. 26-28. 

 stipitata, 32, 102; PL IX, figs. 29-31. 

 tenuiputamenta, 32, 103; PL IX. fig. 36. 

 spp., 101, 103; PL IX, figs. 25, 35 a, b. 

 Prussia, 2, 5, 6, 10, 23. 



„ Geological Survey of, 6. 

 Pseudoleskea atvovixens, 38, 52, 53. 

 Pterocarya caucasica, 16, 73; PL IV, figs. 26, 27. 



hupehensis, 16, 17, 29, 39, 73; PL IV, figs. 22-25. 



172 



