( 3561 ) 
Ecurnocactus Mackreanus. Mr. Mackirz’s 
ECHINOCACTUS. 
KKK KKK ERE EEEEE KEE ERERK 
Class and Order. 
IcosanpriA Monoeynia. 
( Nat. Ord.—Cacteaz. ) 
Generic Character. 
Sepala numerosa imbricata, basi ovarii adnata, in tubum 
brevissimum concreta, exteriora involucriformia, intima pe- 
taliformia. Stamina numerosa. Stylus filiformis, apice 
multifidus. Bacca sepalorum reliquiis subsquamata. Coty-_ 
ledones nulla ?—Frutices simplicissimi carnosi ovati aut 
globosi melocactoidei costati aphylli, costis tuberculis conflu- 
entibus quasi formatis, dorso aculeorum fasciculos geren- 
tibus. Cephalium seu spadix nullus. Flores e fasciculis acu- 
leorum ad apices costarum orti, similes floribus Cerei sed tubo 
vix ullo donati. D. C. 
Specific Character. 
Ecuinocactus Mackieanus ; obovatus mammillosus, mam- 
millis magnis conico-depressis in costas 16—17 subre- 
gulares dispositis apicibus lanosis spinis 8—10 longis 
gracilibus patentibus fuscis terminatis, floribus albis 
apicibus rubro-tinctis. : 
‘een 
This species is also from the rich collection of Messrs. 
Mackie of the Lakenham Nursery, and like that given at t. 
3558 has a considerable affinity with the Genus MamMIL- 
LARIA : but it isa much more neatly made and elegant spe- 
Cles. The drawing came marked as “ E. melocactiformis :” 
but it cannot be the species so called of Dre CANnDoLLE, figur- 
ed at tab. 10 of the « Revue de la Famille des Cactées”’ which 
18a totally different plant. Ours, we believe, was formerly in 
r. Hircuin’s collection, where it was derived from cp 
