Refugium Botanicum. | | [July, 1872. 
TAB. 313, 
Natural Order Lim1AcEm. 
Tribe YuccoIpE®. 
Genus Yucca, Linn. 
Y. auatematensts (Hort. Angl.) Longe caulescens, foliis 830—50 
pro genere laxe dispositis lanceolatis 24—3 pedes longis ad 
medium 24—38 poll. latis carnoso-coriaceis nitide viridibus 
planiusculis apice vix pungentibus marginibus albido-carti- 
lagineis minute serrulatis inferioribus patentibus vel leviter 
recurvatis, floribus in paniculam congestam dispositis, peri- 
anthii anguste campanulati tripollicaris segmentis albis lanceo- 
latis 8—4-plo longioribus quam latis, filamentis puberulis 
semipollicaribus apice clavatis uncinatis, ovario oblongo peri- 
anthio quadruplo breviore, stigmatibus latis profunde bicus- 
pidatis cum stylo ovario 6-plo brevioribus. 
A native of Mexico and Guatemala. 
Trunk reaching five to six feet in height below the leaves, 
three to four inches thick in the specimen drawn, slightly swollen 
at the base. Leaves thirty to fifty spread over a space of a foot 
and a half to two feet or more of the trunk, lanceolate, reaching 
two and a half to three feet in length when fully developed, two 
and a half to three inches broad at the middle, narrowed 
gradually downwards to an inch above the base, and upwards to 
a scarcely pungent concolorous point, the colour a bright shining 
not at all glaucous green, the texture much more fleshy and less 
rigid than in aloifolia, only the lowest quarter concave on the 
face, the rest flat except the very point, the innermost ascending, 
the rest spreading, many slightly recurved, the edge horny and 
scabrous, seen only under a lens to be minutely serrulate, the 
centre two to three lines thick towards the base. Pedunele under 
a foot long. Panicle close, ovoid, two to three: feet long, with 
several close erecto-patent branches. Pedicels cernuous, the 
lowest an inch long. Perianth narrowly bell-shaped, three inches 
deep, pure white, only shghtly tinged with greenish yellow 
towards the base on the outside; the divisions lanceolate, nar- 
rowed gradually from three-quarters of the way down to an acute 
point, the inner eight to nine lines, the outer an inch, broad. 
Filaments five to six lines long, slender, puberulent, curved and 
