62 
The panicle resembles thB.t of J^. pro/i/erum, hut is a distinct and 
good species, to which I give the name of its earliest collector, the 
late Mr. E. llall. 
The May Apple {^Podophylluni) presents several peculiarities in its 
development which are so interesting^ as to merit an explanation. 
The non-flovvering-stem of this plant bears but one leaf, while the 
flowering-stem bears two leaves, the flower being between them. A 
section of the base of the flowering-stem reveals nothing peculiar, it 
is merely a continuation of the rootstock (Fig. i). The section of 
the base of the non-flowering-stem, however, reveals a bud, which 
represents tlie continuation of the root-stock (Fig. 2). A careful 
examination shows a small slit at one side of the bud by means of 
which it has access to the air (Fig. 4) and a cross-section shows that 
it is formed by the overlapping of the two edges of the stem about 
the bud (Fig. 5). In a logitudinal section I find the bud-cavity to 
be placed quite near to the margin of the stem (Fig. 6). Upon ex- 
amining the older nodes of the rootstock I find undeveloped buds 
(f^g- 7O which are placed quite near to the margin of a scar which is 
pitted like a leaf-scar. In fact, the non-flowering-stem of the May- 
apple is only a leaf, the base of whose petiole encloses a bud. When 
two such leaves arise, as is not unfrequent, the bud is enclosed by the 
base of the inner, second leaf. As a rule, the life of Podophyllu^^^ 
peltaiiim is prolonged by the development of axillary buds into 
branches (Figs, i, 2, 7, 8, ^), because the terminal flowering-stem 
perishes and the terminal buds of non-flowering stems rarely develop 
(Fig. 7, b). In one abnormal specimen found, a lateral bud divided 
at its tips, neither branch being axillary to the other (Fig. 3). And 
here I would state what appears to me a remarkable fact: while the 
