105 
irregularly grown out. If a double apex may be looked upon 
as a bifurcation, the case in question may be regarded as an 
excrescence. 
About a curious case of cohesion of two leaves of a ger- 
minating plant Mr. Smith writes as follows: 
Jussiaea spec. (fam. Onagrariaceae). The young plant under notice 
possessed normal cotyledons; the terminal bud developed to a 
whole of two leaves of which the convex uppersurfaces were 
grown together (fig. 11); it was supported by a stalk which 
was four-winged owing to the decurrent leaves. The whole 
behaved like a leaf and soon left off growing. The function of 
the main-stem was assumed by an axillary bud of one of the 
cotyledons producing leaves and flowers. Although also in 
the axil of the other cotyledon there appeared a bud, this 
remained rudimentary. 
Salacia Buddinghii (fam. Hippocrateaceae , allied to the Cedas- 
trineae). An oddly shaped leaf, resembling a strongly compres- 
sed saddle, makes it probable that some pathological disturbance 
is at the bottom of this (fig. 12). 
Pancratium caribaeum (fam. Amaryllideae) From either half ot 
the leaf emerges a narrow appendage in the shape of a leaf and 
about the same size as the leaf itself. The point of attach- 
ment of the two appendages is on their midrib (fig. 13° en by. 
This case is to be classed with the four-winged leaves cited 
by Masters). He exemplifies the case by Codiaeum, Phlox and 
Citrus, and is uncertain whether in these plants we have to 
do with ,dédoublement” as in the above leaves with two api- 
ces, or with enation, in which outgrowths spring from an organ 
not fully developed, as is known to be the case with cabbage- 
leaves and Xanthosoma appendiculatum Schott *). 
Glycosmis  trifoliata (?) (fam. Aurantiaceae). figg. 20° and » 
Of this plant Mr. Smith collected several leaves which were 
incompletely developed, being simple instead of compound 
1) Planzen-teratologie, p. 504. 
2) Penzig Il, p. 444. A beautiful specimen is cultivated in the Amsterdam Uni- 
versity Garden. 
