The cactaceae. 



V 



TEXT-FIGURES. 



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PAGE. 



Hedge of Pereskia pcreskia 7 



Tree of Pereskia autumnalis 1 1 



Branches of Pcreskia autumnalis 12 



Branch of Pereskia lychnidiflora 12 



Leafy branch of Pereskia nicoyana 13 



Branch of Pereskia zehntneri 13 



Cultivated plant of Pcreskia zehntneri. . 14 



Herbarium specimen of Pereskia moorei. 15 



Tree of Pereskia guamacho 15 



Flowering branch of Pereskia guamacho. 16 

 Leafy branch and flower of Pereskia 



colombiana 17 



Branch and fruit of Pcreskia bleo 18 



Fruit of Pereskia bahiensis 19 



Leafy branch of Pcreskia bahiensis 19 



Tree of Pereskia bahiensis 20 



Hedge containing Pcreskia grandifolia. . . 21 



Branch of Pereskia zinniaeflora . . . 21 



Tree of Pereskia cubensis 22 



Leafy branch of Pcreskia cubensis 22 



Branch and fruit of Pereskia portulaci- 



folia 23 



Potted plant grown from a cutting of 



Pereskiopsis velutina 26 



Branch of Pereskiopsis diguetii 27 



1 



Branch of Pereskiopsis opuntiaeflora .... 27 



Branch of Pereskiopsis rotundifolia 27 



Shows a clump of Pereskiopsis rotundi- 



foHa 28 



Branch of Pereskiopsis porteri 28 



Branch of Pereskiopsis aquosa 29 



Leaf of Pereskiopsis kellermanii 30 



Leaf of Pereskiopsis kellermanii 30 



Leaf of Pereskiopsis kellermanii 30 



vSccd of Ptcrocactus hickenii 31 



Plant of Ptcrocactus hickenii 31 



Branch of Ptcrocactus fischcri 31 



Seed of Ptcrocactus fischcri 31 



Seed of Ptcrocactus pumilus 31 



Seed of Ptcrocactus tuberosus 31 



Plant of Ptcrocactus tuberosus, showing 



a very large root 32 



Potted plant of Ptcrocactus tuberosus ... 33, 



Joint of Nopalea 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 fimalis 38 



Longitudinal section of flower of Tacinga 



funalis • . 38 



Section of stem of Tacinga funalis 38 



Tip of young branch of Tacinga funalis. 38 

 Plant of Tacinga funalis, climbing over 



bushes 39 



Plant of Maihucnia valcntinii 40 



Fruit of Maihucnia poeppigii 41 



Joint and flower of Maihucnia brachydcl- 



phys 4^ 



Plant of Maihucnia tehuelchcs 41 



Branch of Opuntia ramossissima 46 



Section of stem of Opuntia ramosissima. 46 



Plant of Opuntia Icptocaulis 48 



Fig. 



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I I T. 



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PAon. 



Section of stem of Opuntia Icptocaulis' . . 48 



Joint of Opuntia caribaca 48 



Thicket fonncd of Opuntia caribaca 49 



Clump of Opuntia arbuscula 50 



Plant of Opuntia arbuscula 51 



Fruiting branch of Opuntia arbuscula. . . 51 



Flowering branch of Opuntia thurbcri. . . 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 bigclovii 59 



Joint of Opuntia bigclovii 59 



Potted plant of Opuntia ciribc 60 



Joint of Opuntia ciribc 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 6-^ 



Plant of Opuntia imbricata 64 



Potted plant of Opuntia tunicata 65 



Plant of Opuntia pallida 65 



Potted plant of Opuntia molcsta 67 



Joint of Opuntia prolifcra 69 



Potted plant of Opuntia prolifcra 70 



Potted plant of Opuntia alcahes 70 



Joint of Opuntia vcrschafi'eltii ... 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 Opimtia 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 wx4:)eri 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- 



terranca q2 



Joints of Opuntia hickenii 92 



Joint of Opuntia darwinii 94 



Joints of Opuntia atacamcnsis 94 



Joints of Opuntia russcllii 94 



Joints of Opuntia ovata g:^ 



Potted plant of Opuntia sphaerica 96 



Joint of Opuntia skottsbcrgii 97 



Joint of Opuntia nigrispina 97 



Joint of Opuntia pcntlandii 97 



