NOTES ON THE FORMS OF CASTELA GALAPAGEIA 
281 
lanceolate mucronulate, figure i c \ spatulate slightly retruse, figure I d\ 
and obovate retruse mucronate, figure i e. The leaves are slightly 
shiny on the upper surface, but as this is a character which seems to 
vary with the age of the specimen and the care with which it was dried, 
it can hardly be considered as distinctive. It might be added that, 
after comparing this specimen with the type specimen of this form, 
I find that there are leaves very similar in shape to those shown in 
Fig. I 
figure la, c, and d, to be found upon it. The margins of many of the 
leaves on the Academy specimen are somewhat revolute. 
The specimen from Villamil Albemarle Island has many leaves 
which are oblong obtuse mucronate, figure 2a. 
There are still other leaves which are obovate and distinctly re- 
truse, figure 26, and still others which are spatulate, similar to those 
shown in figure id. In fact the bases of the most of the leaves on this . 
Fig. 2 Fig. 3 
specimen are rather too attenuate at the base to be considered oblong, 
approaching more a spatulate shape in this respect. The margins of 
the leaves are slightly revolute in many instances, as was the case with 
the specimen from Tagus Cove. 
The specimen from the southeast side of Indefatigable Island has 
more of its leaves oblong obtuse mucronate in shape than any of the 
other unarmed specimens assigned to this form. A typical leaf of 
this kind is shown in figure 3a. 
