HATIORA. 



217 



Key to Species. 



Lower part of joints slender, pedicel -like i. H. salicornioides 



Joints only slightly narrowed below or not narrowed. 



Joints clavate 2. H. bambusoides 



Joints cylindric 3- H. cylindrica 



1. Hatiora salicornioides (Haworth) Britton and Rose, Stand. Cycl. Hort. Bailey 3: 1433. 1915. 

 Rhipsalis salicornoides Haworth, Suppl. PI. Succ. 83. 1S19. 

 Cactus salicornioides* Link and Otto, Icon. PI. Select. 49. 1822. 

 Cactus lyratus Vellozo, Fl. Flum. ed. 2. 4: 205. 1825. 

 Hariota salicornioides De CandoUe, Mem. Cact. 23. 1834. 



Rhipsalis salicornioides strictior Salm-Dyck, Cact. Hort. Dyck. 1849. 230. 1850. 

 Hariota salicornioides strictior Giirke, Bliihende Kakteen 2: under pi. 95. 1907. 



Stems I to 2 meters long with a jointed cylindric trunk; branchlets club-shaped, the lower part 

 very slender and pedicel-like, i .5 to 3 cm. long, green or purplish ; areoles of cultivated specimens 

 without setae; flowers 8 to 10 mm. long, 

 salmon-colored, the outer sepals short 

 and obtuse; inner petals somewhat cre- 

 nate, obtuse; filaments yellowish, at top 

 appressed against style, shorter than 

 petals ; style yellowish ; stigma-lobes 4 or 

 5, white. 



Type locality: Recorded origi- 

 nally from the West Indies in error. 



Distribution: Southeast Brazil. 



These plants grow quite differ- 

 ently in the woods from the way they 

 do in greenhouses. The following 

 note was made by Dr. Rose in 1915 

 while collecting at Rio de Janeiro : 



The plant grows on trunks of trees, i ''« 



its roots long and fibrous, 4 dm. long or 

 more and wrapped about the trunk of 

 the tree ; at first it is erect, then spreading 



and finally pendent; it is then a meter ^'^- 219-— Unusual form of Hatiora salicornioides. X 0.8. 



long or more and very much branched ; 



main stem and branches 5 to 10 mm. in diameter, made up of short terete joints (2 to 5 cm. long); 



branches in whorls of 2 to 6. 



A very remarkable form, if not a distinct species, was obtained by Dr. Rose in the 

 forest of Itatiaya, altitude 1,200 meters, in July 1915 (No. 20585). The terminal joints 

 are i to 2 cm. long, the lower half slender, pedicel-like, the upper half twisted and contorted. 

 This is well shown in our illustration (figure 219). 



Rhipsalis salicornioides gracilior (Salm-Dyck, Cact. Hort. Dyck. 1844. 40. 1845; Hari- 

 ota salicornioides gracilior Giirke, Bliihende Kakteen. 2 : under pi. 95. 1907) is only a name. 



The following varieties of Rhipsalis salicornioides of Weber are probably to be referred 

 here: var. gracilis Weber (Diet. Hort. Bois 1048. 1898; Rhipsalis gracilis Weber and 

 Hariota gracilis Weber, Diet. Hort. Bois 1048. 1898) and var. stricta Weber (Diet. Hort. 

 Bois 1048. 1898; Rhipsalis stricta Cels, Diet. Hort. Bois 1048. 1898). The name Rhipsalis 

 stricta seems never to have been published. Weber cited it as above, referring it to Cels as 

 the author. Schumann uses the name earlier where he states that it was used in France 

 ior Hariota salicornioides {yLonSitsschx. K^Sikiee-nk. 4: 74. 1894). Pfeiffer refers here as a 

 synonym Opuntia salicornioides (Bnum. Cact. 141. 1837), attributing the name to Sprengel, 

 who, however, used it as Cactus (Opuntia) salicornioides. Hariota sticta has been used 

 (Monatssch. Kakteenk. 5: 22. 1895). The variety ramosior Salm-Dyck (Pfeiffer, Enum. 

 Cact. 142. 1837) may or may not belong to this species. 



* This name is often credited to Sprengel (Syst. 2: 497. 1825). 



