1922] BAILEY—ANT-PLANTS 371 
During the earlier juvenile stages the leaves of this species are 
small, +6 cm. long, + 2 cm. wide, simple, lanceolate, finely serrate, 
pilose above and densely albido-tomentose below. The subse- 
quently formed leaves increase rapidly in size, forming first three, 
then five, and ultimately nine to eleven lobes (text figs. 1, 2). 
As the juvenile leaves develop lobes, they lose their marginal serra- 
Fic. 1.—Cecropia angulata: leaves from juvenile plants of different ages, showing 
white tomentum and formation of lobed lamina; Xt. 
tions and become sharply asperate upon the upper surface. The 
transitions from the juvenile to the typical adult foliage are gradual, 
and may be deferred until relatively late stages in the ontogeny 
of the plant. Thus the large deeply lobed leaves of tall saplings 
may retain many of the juvenile characters, that is, asperate upper 
surface, chartaceous texture, conspicuous white tomentum on the 
under surface, acuminate lobes, etc. The leaves of adult indi- 
