THE JUVENILE POKAKA AND MOUNTAIN-WINEBERRY. a 
even as an erect shrub or a small tree many branches may show the 
‘““ weeping ” habit, which is possibly a reversion to the juvenile stage. 
Another tree with an early divaricating-shrub stage is the pokaka 
(Elaeocarpus Hookerianus). Its various leaf-forms may be seen in 
the text-figure on p. 70. Even when this tree has reached its ulti- 
mate height of some 40 feet or more, shoots of the juvenile form 
may appear quite high up in the tree. This is also the case with 
the kahikatea (Podocarpus dacrydioides) and the Chatham tree-heath 
(Dracophyllum arboreum). Juvenile shoots which thus reappear on 
adult plants may be termed “ reversion shoots.” 
The branch with the small toothed leaves is a reversion shoot of Veronica 
salicifolia var. Atkinsonii. The two larger leaves without teeth on the 
margin are those of the adult. [Esmond Atkinson del. 
The mountain-wineberry (Aristotelia fruticosa) does not commence 
its career as a divaricating shrub, but such is its final destiny. 
The seedling for some time puts forth leaves of various forms, not 
at all like those of the adult, as may be seen in fig. 40. Also, these 
leaves, as well as the form of the young plant, denote that the latter 
is far more dependent upon an abundant supply of water than is 
the adult; for this, deed, may, in its almost leafless habit and 
rigid spinous stems, be peculiarly fitted to resist drought. EG 
Many of the koromikos (Veronica) differ considerably in their 
early stage of growth from the final adult form. The commonest 
distinction is the toothing of juvenile leaves. Such is well shown 
in the text-figure of Veronica salcifolia var. Atkinsonit shown above, 
