214 



THE CACTACEAB. 



Figure 275 is from a photograph of part of the original collection as grown by Dr. E. 

 Chaffey, taken and contributed by Senor Don Teodoro Chairez, of Ciudad Lerdo, Mexico ; 

 figure 276 is from a photograph of the type showing the large root and the young shoot. 



As stated in the original description, this is a remarkable Opuntia, being the only one 

 known which has an annual stem. In cultivation, where the plant is grown under abnor- 

 mal conditions, the stem persists for more than a year ; but Dr. Chaffey assures us that in the 

 desert, where the species grows naturally, the stem dies down to the ground in the dry 

 season. We have had it in cultivation since 19 10, but it does not do well, and is gradually 

 dying out. It has not been found in flower in a wild state, but it flowered with Dr. Chafifey 

 at Ciudad Lerdo, Durango, Mexico, in 1915. Dr. Chaffey, who has been studying this spe- 

 cies for several years, has made a number of interesting observations; he states that the 

 large base, which usually is found 15 to 20 cm. beneath the surface of the ground, when 

 allowed to grow above the ground develops clusters of spines like those on the normal 

 stems, and finds that the plant is easily started from cuttings which soon develop the 

 normal, large, underground part. He further states that the desert turtle eats this plant. 

 It is well known that the Galapagos turtles feed upon the native opuntias of those islands. 



The native name of this plant is sacaciL 



The following described Opuntias we have been unable to refer to any of the species 

 otherwise mentioned in this work: 



Opuntia hicolor Philippi, Linnaea 33: 83. 1864. 



glaucophylla Wendland, Cat. Hort. Herrenh. 1835. 



laevior Salm-Dyck, Cact. Hort. Dj'ck. 1844. 46. 1845. 

 longiglochia C. Z. Nelson, Galcsburg Register. July 20, 191 5. 

 lucida Hortus, Wiener Illustr. Gartenz. 14: 146. 1889. 

 prosirata spinosior Schumann, Gesamtb. Kakteen 723. 1898. 

 spinaurea Karwinsky in Salm-Dyck, Cact. Hort. Dyck. 1844. 4^* 

 pseudoiuna elongata Salm-Dyck. 



tuberculata Haworth, Suppl. PL Succ. 80. 1819, first described as Cactus tuberculatus (Enum. 

 Hort. Bcrol, Suppl. 34. 1813). 



The following names of Opuntia are chiefly found in catalogues or in lists, or have 

 been so briefly described that we have not been able to identify them, and it does not seem 

 worth while even to cite the places where they first occur in literature : 



1845. As synonym for O, 



opuntia alpicola Schumann 



amcricana Forbes 



attulica Forbes 



barbata K. Brandegee 



barbata gracillima K. Brandegee 



bernhardinii Hildmann 



betancourl Murillo 



calacantha 



calacantha rubra 



Carolina Forbes 



ciliosa Forbes 



consoleana Todaro 



consolei Haage and Schmidt 



demorenia Forbes 



demoriana Forster 



deppei Wendland 



dichotoma Forbes 



eborina Forster 



e recta Schuniuun 



f estiva Sencke 



ficnS'indica alhispina Haage and Schmidt 

 flavispina Forster 

 hevernickii Hildmann 

 hitchenii Forbes 

 italica Tenore 



joconostle Haage and Schmidt 

 jussietiii Haage 

 leucostata Forbes 

 macrophylla Haage and Schmidt 



Opuntia missourtensts elongata Salm-Dyck - 



erythrostemma Haage and Schmidt 

 salmonea Haage end Schmidt 

 montana Sencke 



morenoi Schumann 

 myriacantha Link and Otto. Not 

 ottonis Salm-Dyck 



pachyarthra flava Haage and Schmidt 

 pachyclada rosea Haage and Schmidt 

 spaethiana Haage and Schmidt 

 parole Forbes 



piccolomini Hort. 

 platyclada Haworth 

 praecox Forbes 

 protracta Lemaire 



elongata Salm-Dyck 

 pseudococcinellifer Bertoloni 

 pseudotuna Salm-Dyck 



elongata Salm-Dyck 



spinosior Salm-Dyck 

 pulverata Forster 

 reptans Karwinsky 

 salmti Forbes 



schomburgkii Salm-Dyck 

 speciosa Steudel 



spinuliflora Salm-Dyck 

 spinulosa Salm-Dyck 

 straminea Sencke 

 stricta spinulescens Salm-Dyck 

 subinermis Link 



Weber 



A^ 



V, 



