Tas. 4393. 
LEUCHTENBERGIA Parinciris. 
Noble Leuchtenhergia. 
Nat. Ord. CactEx.—IcosanpRIA MonoGyNia. 
Gen. Char. Sepala numerosa basi ovario adnata, in tubum elongatum concreta, 
exteriora breviora, calycinalia sparsa, media longiora subcolorata, intima petali- 
formia. Stamina numerosissima cum tubo concreta; sfy/us crassus columnaris ; 
stigma radiis recurvatis subdecem. Ovarium uniloculare: ovulis numerosissimis 
parietalibus.—Frutex carnosus, inferne sublignosus, elongato-cylindraceus, spiraliter 
amammillosus, mammillis valde elongatis foliiformibus (3—4-uncialibus) acute tri- 
quetris truncatis, (inferioribus deciduis et tune caudex cicatricatus) apice longe 
glumaceo-spinosis, spinis exterioribus brevioribus subdecem, centrali longissima 
basi triquetra. 
Leucutensereta Principis. 
LEUCHTENBERGIA Principis, Hortulan. 
Few persons, we think, on viewing this plant when destitute 
of flower, would imagine it to belong to the Cactee. The mammille 
have rather the appearance of the leaves of some Aloid plant, 
while the stem, looking as if formed of the persistent bases of old 
leaves, resembles that of some Oycadee. The blossom, however, 
if nothing else does, betrays its real character; for it differs in 
no particular from that of Cereus. The whole habit of the 
plant is, however, so unlike any other Cactaceous plant, that for 
consistency’s sake, if Cereus and Hehinocactus are natural and 
good genera, this will constitute a genus apart; and I willingly 
adopt a name by which this plant is said to be known upon the 
Continent, although I have failed to find the place where any 
Such name is recorded. Our plants were obtained for us from 
the neighbourhood of Rio del Monte, Mexico, through the favour 
of John Taylor, Esq. It flowers in the summer months. : 
Descr. Our largest plant is a foot high, its main ¢runk erect, 
but crooked, as thick as a man’s arm, clothed with the dense 
mass of the persistent bases of old mammillz, or perhaps rather of 
the withered mammillz themselves, shrunk and reduced to a mass 
of closely pressed scales; above they gradually appear more _ 
SEPTEMBER Ist, 1848. - 
