1 1 2 Mr. Haworth's Twelfth Decade of New Succulent Plants. 



Cofijledones duae breves obtusee. Calyx S-6-partitu.s brevis. 

 Petala sex oblonga patula. DeCand. 1. c. 



Frutices americani parvi parasitic! succulenti aphylli insuper 

 prsecipue arborum truncos ramosve. Rami et ramidi 

 articulati plerumc|ue peiiduli, teretes, vel saepius obsolete 

 striati, seu sulcaluli, sive incipienter 4-5-angulati, sem- 

 per graciles et plus minus subfasciculatim dichotomi, di- 

 chotomiis semiexpansis, setarum exiguarum mox decidua- 

 rum fasciculi, ut in Cereo, incipientes, seu fere obliterati, 

 et quasi, in aetate praecipuo, evanescentes, earum area punc- 

 tiformi sive cicatrice solum relicta ; ut in Bot. Mag. tab. 

 bona ST^O, pro punctos veros delineata. Florcs sessiles 

 laterales minimi albi, et in R. grand ijlord Nob. opuntiacei: 

 petalis recurvis lutescentibus, et in hoc genere giganteis. 



Cereusctda. R. (Small quadrangular) subflexuos^ scandenter 

 10. radicans, articulata : ramis exiguis subfasciculatis 

 quadrangularibus : setarum radiis interradiis longiori- 

 bus criniformibus expansis. 



Habitat in Brazilia, et nunc viget in nobili horto 

 Hort. Soc. Londini, St. Tj , adluic sine floribus. 



Siiffrntex nunc pusillus debilis, ramis antiquioribus 

 flexuosis, subfiliformibus teretiusculis, Cereorwn modo 

 valde scandenter radiculantibus : ramidis subfascicula- 

 tim distinctis sive distantibus 4-5-angularibus laete vi- 

 ridibus, lentisque ope albo vere punctulatis, setisque 

 affinium parvis, fasciculatim gerentibus. Setarum radii 

 sub-sex in singulo fasciculo, varie patentim vel hori- 

 zontaliter, sive recurvo-aperientes, subsesquilineares, 

 radiorum umbone fusco. 



R. mesemhryantlioidi Nob. similis ; sed duplo altior, 

 minus aggregata magisque angularis ; sed ante eam lo- 

 carem. 



Ohs. Adanson's ancient generic name of Hariota^ 

 must however be restored to this group ; or at least to 

 the cylindric, smooth, unangled, pendulous part of it; 

 as soon as it can be determined whether the species 

 allied to my Rhipsalis mesembryanthoides do not form 

 of themselves a distinct subgenus from Adanson's 

 genus Hariota ; which they probably do. I have never 

 seen Adanson's book, or should, quite as a matter of 

 course, have adopted his earlier genus Hariota. It 

 is probable that both these names may be retained. 



Obs. In Burman\ edition of the excellent and faithful out- 

 line figures of Plumier's PL Americ. two gigantic Cerei are re- 

 presented 



