of flowering, spreading, narrowly oblong-lanceolate, about 
20 in. long, dilated base over } in. thick, and 33 in. broad, 
neck about 21 in. broad, convex on its upper surface, 
greatest width of leaf, at about 9 in. from the base, about 
3 in., upper surface almost flat upwards, except just below 
the tip, which bears a rather blunt, finely grooved spine, 
less than # in. long; margins with an extremely narrow 
ribbon, brown when young, ashen grey with age, armed at 
intervals of about # in. with prickles under 3 in. long, 
compressed at their bases, narrowly triangular in outline, 
tips not obviously hooked. lowering stem not quite 9 ft. 
high, diameter 14 in. at the base, less than an inch just 
below the spike of greenish flowers, with purplish filaments 
and anthers, which before withering give the spike a 
diameter of a little less than four inches, PBracts suddenly 
narrowed above their bases and folded into a firm, awl- 
shaped scarious bristle, whitish and conspicuous on the 
scape, but hidden by the buds and blossoms. Ovary rather 
more than $ in. long by } in. broad ; tube sharply constricted, 
plainly six-furrowed. Perianth-lobes about the same Jength 
as the germen, rather fleshy, green with white translucent 
edges; style robusi, suffused with purple ; stigma papillose. 
—J. R. DrumMonp. 
Curivation.— Agave Watsoni was purchased in 1906 
from Mr. Justus Corderoy, Blewbury, Didcot, who obtained 
it originally from the Ghiesbreght Collection as an unnamed 
species. It flowered at Kew in 1907 under the usual 
conditions of cultivation. Unless there are other plants of 
it elsewhere it is likely to be lost to cultivation, as it has 
produced neither seeds nor offsets. —W. Watson. 
Figs. 1 and 2, anthers; 3 ; ey 
4 reduced. * » Style apex; 4, whole plant:—1-3 enlarged, 
