1897 | BRIEFER ARTICLES 429 
rather than an outgrowth of the peduncle, that it has a foliar rather 
than a cauline origin. Further proof that this bract is a leaf organ 
may be found in the buds (represented in cross section in fg. 2). 
Every bud where an inflorescence does not occur has the first bud scale 
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Fic. 2. Infloresence and bract of Zilia Americana, with cross section of two bud 
on the upper side. Where an inflorescence appears it always arises 
from the same position relatively that the first bud scale occupies in 
other buds, while the bud occurring at the same node with the inflor- 
_escence invariably has the first bud scale below. 
The removal of a subtending leaf or bract from its normal position is 
‘hot uncommon. Neither is it always so constant in a species as it seems 
to be among the Solanacee. In a number of species studied the bracts 
were usually normally placed, but frequently appeared above the node 
