500 INCREASE OF CYCADE^ BY BUDS. 
fossil species, in consequence of its protruding a 
series of buds from the axillae of many of the 
scales around its trunk. These buds explain 
analogous appearances at the axillae of many 
fossil scales on Cycadites megalophyllus, and Cy- 
cadites microphyllus, (see PI. 60, Fig. 1, and PI. 
61, Fig. 1,) and form an important point of agree- 
ment in the Physiology of the living and fossil 
Cycadeae.^ 
lowing spring the buds began to protrude. Similar buds appeared 
also in the same conservatory on a plant of the Zamia spiralis 
from New Holland. In vol. vi. p. 501, Horticult. Trans, leaves 
are stated to have protruded from the scales of a decayed trunk 
of Zamia horrida in a conservatory at Petersburgh. 
I learn from Professor Henslow, that the trunk of a Cycas re- 
voluta, which in 1830 produced a Cone loaded with ripe drupse, 
in Earl Fitzwilliam's hothouse at Wentworth, threw out a number 
of buds, from the axillae of the leaf-scales soon after the Cone 
was cut off from its summit. In Linn. Trans, vol. vi. tab. 29, is 
a figure of a similar cone which bore fruit at Farnham Castle, 
1799. 
It is stated in Miller's Gardener's Dictionary, that the Cycas 
revoluta was introduced into England about 1758, by Captain 
Hutchinson ; his ship was attacked, and the head of the plant 
shot off, but the stem being preserved, threw out several new 
heads, which were taken off, and produced as many plants. 
*In the fossil trunk of Cycadites microphyllus, PI. 61, Fig. 1, 
we see fourteen Buds protruding from the axillae of the leafstalks, 
and in PI. 60, Fig. 1, we have three Buds in a similar position in 
Cycadites megalophyllus. 
In PI. 61, Figs. 2, 3, exhibit transverse sections of three Buds 
of Cycadites microphyllus. The section of the uppermost bud. 
Fig. 3, g, passes only through the leaf stalks near its crown. 
The section of the bud. Fig. 3. 'd, being lower down in the em- 
bryo trunk, exhibits a double woody circle, arranged in radiating 
