THB cactaceae;. 



TEXT-FIGURES. 



PAGE. 



1. Hedge of Pereskia pereskia 7 



2. Tree of Pereskia autmnnalis 11 



3. Branches of Pereskia autumnalis 12 



4. Branch of Pereskia lychnidiflora 12 



5. Leafy branch of Pereskia nicoyana 13 



6. Branch of Pereskia zehntneri 13 



7. Cultivated plant of Pereskia zehntneri . . 14 



8. Herbarium specimen of Pereskia moorei . 15 



9. Tree of Pereskia guamacho 15 



10. Flowering branch of Pereskia guamacho. 16 



11. Leafy branch and flower of Pereskia 



colombiana 17 



12. Branch and fruit of Pereskia bleo 18 



13. Fruit of Pereskia bahiensis 19 



14. Leafy branch of Pereskia bahiensis 19 



15. Tree of Pereskia bahiensis 20 



16. Hedge containing Pereskia grandifolia. . . 21 



17. Branch of Pereskia zinniaeflora 21 



18. Tree of Pereskia cubensis 22 



19. Leafy branch of Pereskia cubensis 22 



20. Branch and fruit of Pereskia portulaci- 



folia 23 



21. Potted plant grown from a cutting of 



Pereskiopsis velutina 26 



22. Branch of Pereskiopsis diguetii 27 



23. Branch of Pereskiopsis opuntiaeflora .... 27 



24. Branch of Pereskiopsis rotundifolia 27 



25. Shows a clump of Pereskiopsis rotundi- 



foUa 28 



26. Branch of Pereskiopsis porteri 28 



27. Branch of Pereskiopsis aquosa 29 



28. Leaf of Pereskiopsis kellermanii 30 



29. Leaf of Pereskiopsis kellermanii 30 



Leaf of Pereskiopsis kellermanii 30 



Seed of Pterocactus hickenii 31 



Plant of Pterocactus hickenii 31 



Branch of Pterocactus fischeri 31 



Seed of Pterocactus fischeri 31 



Seed of Pterocactus pumilus 31 



Seed of Pterocactus tuberosus 31 



Plant of Pterocactus tuberosus, showing 



a very large root 32 



Potted plant of Pterocactus tuberosus ... 33 



Joint of Nopalca guatemalensis 35 



Joint of Nopalea lutea 35 



Large plant of Nopalea dejecta 36 



Joints of Nopalea dejecta 37 



Joints of Nopalea karwinskiana 37 



Joint of Nopalea inaperta 37 



Flower of Tacinga funalis 38 



Longitudinal section of fiower of Tacinga 



funalis 38 



47. Section of stem of Tacinga funalis 38 



48. Tip of young branch of Tacinga funalis. 38 



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 brachydel- 



phys 41 



53. Plant of Maihuenia tehuelches 41 



54. Branch of Opuntia ramossissima 46 



55. Section of stem of Opuntia ramosissima. 46 



56. Plant of Opuntia leptocaulis 48 



Fig. 57- 

 58. 

 59- 

 60. 

 61. 

 62. 

 63. 

 64. 

 65. 

 66. 

 67. 

 68. 

 69. 

 70. 

 71. 

 72. 

 73- 

 74- 

 75. 



87. 



99- 

 100. 



lOI. 



102. 

 103. 

 104. 

 105. 

 106. 

 107. 



108. 

 109. 

 no. 

 III. 

 112. 

 "3. 

 114. 

 115- 

 116. 



PAGE. 



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 viridiilora 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 prolif era 69 



Potted plant of Opuntia prolif era 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 81 



Joints of Opuntia clavata 81 



Joints of Opuntia parishii 82 



Joints of Opuntia pulcheUa 82 



Plants of Opuntia vilis 83 



Joints and cluster of spines of Opuntia 



bulbispina 83 



Joints of Opuntia grahamii 84 



Plants of Opimtia weberi 84 



Joints of Opuntia weberi 85 



Potted plant of Opuntia fioccosa 86 



Mound of Opuntia lagopus 88 



Root, joints, and fiower 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 



