Refugium Botanicum.} [| November, 1871. 
TAB. 306, 
Natural Order AMARYLLIDACER. 
Genus Aaave, Linn. 
A. Versonarreitu (Lemaire, Ill. Hort. t. 564). Acaulis foliis rigidis 
crassissimis 80—40 dense rosulatis oblanceolato-spathulatis 
pedem longis supra medium 3}—4 poll. latis glauco-viridibus 
facie planiusculis apice spina valida rubro-brunnea facie 
canaliculata margine spinis multis ascendentibus corneis arma- 
tis, scapo (panicula inclusa) 12—14-pedali, floribus thyrsoideis 
ad apicem ramorum horizontalium confertis breviter pedicel- 
latis, perianthii infundibuliformis 2}—23 pollicaris segmentis 
lanceolatis diutine ascendentibus flavo-viridibus tubo longiori- 
bus, staminibus cum stylo longe exsertis.— Jacobi, Hamb. Gar- 
tenzett, 1865, p. 122. 

A native of Mexico. 
Acaulescent. Leaves thirty to forty in a dense rosette, oblanceo- 
late-spathulate, about a foot long, three and a half to four inches 
broad two-thirds of the way up, narrowed to two and a quarter to 
two and a half inches above the dilated base, amongst the 
thickest and most rigid in texture of the plants of the genus, 
pale glaucous-green, nearly flat on the face, rounded on the back, 
armed at the subobtuse point with a strong pungent reddish 
brown spine nearly an inch long, the upper prickles of the margin 
deltoid-falcate, two to three lines long, those of the lower half of 
the leaf much smaller. Scape, including the panicle, twelve to 
fourteen feet high. Panicle lax, thyrsoid, the flowers in dense 
clusters at the end of the spreading flexuose branches. Perianth 
narrowly funnel-shaped, shortly pedicellate, two and a quarter to 
two and a half inches deep, the permanently ascending lanceolate 
yellowish green dwisions exceeding the tube. Anthers an inch 
long, quite exserted. 
Closely allied to A. Scolymus, amena, and Saundersi. 
Tas. 806. —1, the whole plant, much reduced. 2, leaf; 3, fascicle 
of flowers: both natural size. 4, horizontal section of ovary, mag- 
nified.—J. G. B, 
This is a noble species of the genus Agave, which runs into 
many varieties, some of which at present rank as species, but, 
