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THE CACTACEAE. 



1. Aporocactus leptophis (De CandoUe) Britton and Rose, Contr. U. S. Nat. Herb. 12: 435- 



1909 



Cereus Icbluphis Dc Candollc, Mem. Mus. Hist. Nat. Paris 17: n?- 18: 

 Cereus flaerlliformis leptophis Schumann, Gesamtb. Kaktcen 143. 1897- 



1828. 



lebtopl 



Often creeping; branches cylindric, 8 to 10 mm. thick, rather strongly 7 or J-nbbed, ribs obtuse 

 somewha?repaSd;^areoles velvety, with 12 or 13 rigid setaceous spines ; flower-tube curved just above 



gments 



Type locality: Mexico 

 Distribution: Mexico. 



Mem. Cact. pi. 12; Forster, Handb 



Rumoler, Sukkulenten f. 68, all as Cereus leptoph 



New York 



irden. Figure 297 is reproduced from the first illustration abov< 



Aporocactus flagelliformis (Linnaeus) Lemaire, Illustr. Hort. 7: Misc 



i860. 



Cacitis flagelliformis Linnaeus, Sp. PI. 467. 1753- 

 ^Cereus flagelliformis Miller, Gard. Diet. ed. 8. No. 12. , ^ 



Corpus napelliformis minor Salm-Dyck in Pfeiffer, Enum. Cact. in. 1837. 



1768. 



Stems at first ascending or erect, but weak and slender or pendent, i to 2 cm. in diameter ; 

 branches often prostrate and creeping or even pendent; ribs 10 to 12, low and mconspicuous, a 

 little tuberculate; areoles 6 to 8 mm. apart; radial spines 8 to 12, acicular, reddish brown; central 

 spines \ or 4, brownish with yellow tips; flowers 7 to 8 cm. long, opening for 3 or 4 days, crimson; 



gments 



diameter 



Type locality: At first supposed to be from South 



America 



Distribution: Reported from Mexico, Central America 



and South Amer 



nowhere known to us in the wild state. 



from Peru 



presuma 



originally 



from 



Mexico. The species is widely 

 cultivated in all tropical coun- 

 tries. It is very common in 



about 

 Mex- 



Mexico to see this plant 

 the houses of the poorer 

 icans, often planted in the end of 

 a cow's horn and hung on the 

 side of the house. This species, 

 too, has cristate forms. 



The plant is known as the 

 rat-tail cactus and is much 



^- 



grown 

 Mexico 



a window plant. In 



Fig. 297. 

 Fig. 298. 



Flower of Aporocactus leptophis. 

 ■Flower of Aporocactus flagriforinis. 



remedy and sometimes are sold in the drug markets under the name 



de cuerno. 



This species is recorded by Grisebach, citing Sloane and Swartz, as found in trees, ir 



Jamaica along the coast, but it is not known to occur on that island at the present time 



Sloane's description better applies to Selenicereus grandifl 



(Enum 



1837) is a generic hybrid produced by adding 

 Heliocereus and was made by an English 



Magazine 



(67: pi. 



gardener, Mr. Mallison. It is figured in Curtis's Botanical 



3822) and in Edwards's Botantical Register (19: pi. 1565) and it was said to be one of the 



best hybrids which had yet been produced. The flower is nearly regular with scarcely any 



^Cereus minor (Weingart, Monatsschr. Kakteeuk, 18: 49. 1908) doubtless refers to the variety minor given above. 



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