THE CACTACEAE. 



TEXT-FIGURES. 



PAGE. 



Fio. i . Hedge of Pereskia pereskia 



2. Tree of Pereskia autuinnalis 



3. Branches of Pereskia autumnalis 



4. Branch of Pereskia lychnidiflora 



5. Leafy branch of Pereskia nicoyana 13 



6. Branch of Pereskia zehntncri 



7. Cultivated plant of Pereskia zehntncri . . 



8. Herbarium specimen of Pereskia moorei . 



9. Tree of Pereskia guamacho 



10. Flowering branch of Pereskia guamacho. 



1 1 . Leafy branch and flower of Pereskia 



colombiana 17 



12. Branch and fruit of Pereskia bleo 



13. Fruit of Pereskia bahiensis 



14. Leafy branch of Pereskia bahiensis 



15. Tree of Pereskia bahiensis 



1 6. Hedge containing Pereskia grandifolia. . . 



17. Branch of Pereskia zinniaeflora 



1 8. Tree of Pereskia cubensis 



19. Leafy branch of Pereskia cubensis 



20. Branch and fruit of Pereskia portulaci- 



folia 



21. Potted plant grown from a cutting of 



Percskiopsis velutina 26 



22. Branch of Pereskiopsis diguetii 27 



23. Branch of Pereskiopsis opuntiaeflora .... 



24. Branch of Pereskiopsis rotundifolia 27 



25. Shows a clump of Pereskiopsis rotundi- 



folia 



26. Branch of Pereskiopsis porteri 28 



27. Branch of Pereskiopsis aquosa 29 



28. Leaf of Pereskiopsis kellermanii 30 



29. Leaf of Pereskiopsis kellermanii 30 



30. Leaf of Pereskiopsis kellermanii 30 



31. Seed of Pterocactus hickenii 31 



32. Plant of Pterocactus hickenii 31 



33. Branch of Pterocactus fischeri 31 



34. Seed of Pterocactus fischeri 31 



35. Seed of Pterocactus pumilus 31 



36. Seed of Pterocactus tuberosus 31 



37. Plant of Pterocactus tuberosus, showing 



a very large root 32 



38. Potted plant of Pterocactus tuberosus . . . 



39. Joint of Nopalea guatemalensis 35 



40. Joint of Nopalea lutea 35 



41. Large plant of Nopalea dejecta 36 



42. Joints of Nopalea dejecta 37 



43. Joints of Nopalea karwinskiana 37 



44. Joint of Nopalea inaperta 



45. Flower of Tacinga funalis 38 



46. Longitudinal section of flower of Tacinga 



funalis 



47. Section of stem of Tacinga funalis 38 



48. Tip of young branch of Tacinga funalis. 



49. Plant of Tacinga funalis, climbing over 



bushes 39 



50. Plant of Maihuenia valentinii 40 



51. Fruit of Maihuenia poeppigii 41 



52. Joint and flower of Maihuenia brachydc-1- 



phys 



53. Plant of Maihuenia tehuelches 41 



54. Branch of Opuntia ramossissima 



55. Section of stem of Opuntia ramosissima. 



56. Plant of Opuntia leptocaulis 



PACE. 



Section of stem of Opuntia leptocaulis' . . 48 



Joint of Opuntia caribaea 48 



Thicket formed of Opuntia caribaea 49 



Clump of Opuntia arbuscula 50 



Plant of Opuntia arbuscula 51 



Fruiting branch of Opuntia arbuscula. . . 51 



Flowering branch of Opuntia thurberi. . . 53 



Branch of Opuntia davisii 55 



Branch of Opuntia viridiflora 55 



Branch of Opuntia whipplei 55 



Plant of Opuntia acanthocarpa 56 



Joint of Opuntia serpentina 58 



Plant of Opuntia bigelovii 59 



Joint of Opuntia bigelovii 59 



Potted plant of Opuntia ciribe 60 



Joint of Opuntia ciribe 60 



Potted plant of Opuntia cholla 61 



Joint of Opuntia cholla 62 



Proliferous fruits of Opuntia cholla, devel- 

 oping new joints 62 



Proliferous fruits of Opuntia cholla, 



developing new joints 62 



Joints of Opuntia loydii 63 



Plant of Opuntia lloydii 63 



Plant of Opuntia imbricata 64 



Potted plant of Opuntia tunicata 65 



Plant of Opuntia pallida 65 



Potted plant of Opuntia molesta 67 



Joint of Opuntia prolifera 69 



Potted plant of Opuntia prolifera 70 



Potted plant of Opuntia alcahes 70 



Joint of Opuntia verschaffeltii 72 



Grafted plants of Opuntia clavarioides . . . 73 



Potted plant of Opuntia salmiana 74 



Joints of Opuntia salmiana 74 



Potted plant of Opuntia subulata 76 



Joint of Opuntia pachypus 77 



Joints of Opuntia schottii 8 1 



Joints of Opuntia clavata 81 



Joints of Opuntia parishii 82 



Joints of Opuntia pulchella 82 



Plants of Opuntia vilis 83 



Joints and cluster of spines of Opuntia 



bulbispina 83 



Joints of Opuntia grahamii 84 



Plants of Opuntia weberi 84 



Joints of Opuntia weberi 85 



Potted plant of Opuntia floccosa 86 



Mound of Opuntia lagopus 88 



Root, joints, and flower of O. australis. . 88 



Joints of Opuntia glomerata 89 



Joint of Opuntia aoracantha 91 



Joint of Opuntia rauppiana 92 



Flowering plant and fruit of Opuntia sub- 



terranea 92 



Joints of Opuntia hickenii 92 



Joint of Opuntia darwinii 94 



Joints of Opuntia atacamensis 94 



Joints of Opuntia russellii 94 



Joints of Opuntia ovata 95 



Potted plant of Opuntia sphaerica 96 



Joint of Opuntia skottsbergii 97 



Joint of Opuntia nigrispina 97 



Joint of Opuntia pentlandii 97 



