YER MINOLOGY. 5G 
viously folded up. When an opening bud is cut 
over horizontally, the following varieties appear : 
1. Involute, (involuta), when the edges of the 
leaves are turned in, as in the hop, Humulus dupulus 
fig. 251, 259, 260. 
2. Revolute, (revoluta), when the edges of the 
leaves are rolled outwards, as in the willows, (Sa- 
lices), fig. 252, 262. 
3. Obvolute, (ebvoluta), when two simply closed 
leaves, without being rolled, embrace the half of 
each other, asin sage, Salvia officinalis, fig. 256. 
4, Convolute, (convoluta), when the leaves are 
rolled up spirally, as in the plumb, Prunus domestica, 
apricot, Prunus armeniaca, fig. 250, 258, 
& Riding, (eguitans), when several leaves which 
lie parallel, embrace the whole of one another, as in 
the lilac, Syringa vulgaris, fig. 254, 255, 263, 264. 
6. Conduplicate, (conduplicata), when the sides of 
the leaves lie parallel to one another, asin the beech, 
Fagus sylvatica, fig. 253. 
7. Plaited, (plicata), when the leaves are regu- 
larly folded, as in the birch, Betula alba, fig. 257. 
8. Bent down, (reclinata), when the points of the 
young leaves hang down, as in Arum, Aconitum. 
9. Circinal, (circinata), when the whole leaf, fromm 
the point to the base, is rolled up, so that the out. 
side is within, and the inside without, as in all the 
Pilices, fig. 15, | i 
N, When the leaves are opposite, the figure is 
often doubled, as in fig. 258, 259, €68, 262. 
ANG mi kt 
§'43. The 
