314 The Botanical Gazette. (July, 
We have stated above that such unlobed, notched leaves 
in many cases remind us of the leaflets of several Legumi- 
nosz, and if we compare Mr. Hollick’s figure 2 on his plate 
v (I. c.) where three leaves of the same size, shape and vena- 
tion as our fig. 3, which is one of them, are figured, might 
we then not assume that they have been situated close to- 
gether as they were found in the rock? They seem indeed to 
have formed a ¢rifoliate leaf, not unlike Desmodium, Phaseo- 
lus, and others. Their venation is much more like that of 
the Leguminose than of any known Liriodendron. More- 
over we must not forget that notched leaves are not only 
common among the Leguminose, but exist in many genera 
of various families, e. g., Zygophyllum, Passiflora, Akebia, etc., 
which might also be taken into consideration. 
We see from this comparison that it is very unsafe to re- 
fer such leaves to Liriodendron, when such essential points as 
the petiole and the venation are imperfect or wanting. It is 
furthermore difficult to understand how Mr. Hollick could 
find any probable relationship between the small fragments 
figured on his plate 179°, and the genus Liriodendron. These 
fragments might just as well have been referred to genera of 
entirely different families and if not, we do not see why his 
leaf of Colutea (l. c.) figured on our plate as no. 5, has not 
been identified as a Liriodendron or Liriophyllum, in accord- 
ance with the other species mentioned above. 
There is now another point to which we should like to cal| 
attention, viz., what Mr. Hollick calls the wing-like append- 
ages on the petioles of Liriodendron ‘‘alatum.”? It seems to 
on g Islan . 1904. 
* Hollick, Arthur: Wing-like appendages on the petioles of Liriophy/ium 
populoides Lesq., and Liriodendron alatum Newb.,with description of the latter. 
Bull. Torrey Bot. Club 21: 467-471. pl. 220-221. 1894. 
