THE ALOES 
343 
the south. There exist two forms, one 
(the type) with tall stems, large leaves 
of very glaucous colour, and flowers ap- 
pearing early as long spikes of brilliant 
red. The second variety makes rounded 
bushes, with shorter leaves of deeper 
green in which the marginal teeth are 
set more closely, and shorter flower- 
spikes, coming later, and of a different 
shade of red. This is a fine plant for 
grouping. AloeSalm-Dyckiana is like 
a larger A, arborescens^ but much taller 
and in every way more vigorous. Its 
flowers also are different, the stamens 
standing out far beyond the tube of the 
flowers, thesebeingfolded in long spikes 
of 2 to 3 feet and of the most vivid 
scarlet. This is one of the finest of the 
genus and should be widely grown. 
It was introduced long ago but its 
native place has never -been pro- 
perly known. Similar plants, but 
with very glaucous leaves, ^^x^Aloe 
caes/a2Lnd Aloe speciosa. Both have 
white flowers with green tips and 
fine green stripes; the first has the 
stamens hardly showing while the 
bright red stamens of the second 
are boldly thrust far out of the 
flowers. When old they form large 
rounded bushes and are well worth 
growing. Aloe caesia is common 
on the Riviera under many names, 
such as Aloe aff^icana and Aloe 
soccotrina — both of which belong to 
very different plants. Aloe speciosa is of 
later introduction and is still rare. A loe 
^r(?Arflowers in'springand is very hand- 
some, formingrobust trunks with a large 
crown of thick, glaucous and very prick- 
ly leaves. The flower-head is branched 
like a candelabrum and varies in colour 
from a bright yellow to intensered . The 
flowers are densely grouped and have 
the stamens widely exserted. There 
are many forms of this fine plant. The 
true species has shorter ovate-lanceolate 
leaves, thickly covered on both sides 
with brown prickles ; others have the 
prickles only below [A. supj^alaevis)^ 
and others are quite smooth except along 
the margins (A. supi^alaevis var. Ha7i- 
6uryi) . This plant differs so markedly 
from other Aloes that it has been made 
a sub-genus under the name Pachyden- 
d?^07i. It is from eastern South Africa 
as far as the Lebombo mountains, where 
it covers large tracts of land. 
La Mortola. ALWIN BERGER. 
Leaf, Flower, and Fruit 
OK THE y^ 
American Gymnocladus. 
Errata. — We regret that owing to some 
confusion in the reference numbers, a different 
engraving from that intended was used in our 
article upon the Gymnocladus on page 313. 
The sprays there shown are Gleditschia tria- 
cafithos, an allied tree but quite unlike the 
Gymnocladus, as will be seen upon compari- 
son with the engraving now given. 
