before the Linnean Society, May, 1873. 253 
has proved difficult or impossible. The leaves of Pinus, the 
outer casing of inferior ovaries, the floral cup of Myrtacee, 
some parts of Coniferous flowers above alluded to, the stamens 
of Euphorbia, &c., have led to much controversy as to whether 
line of demarcation in this respect can be drawn between an 
axial development and a true appendage. It is consequently 
argued that there is no real difference between a leaf-organ (or 
appendage) and a branch; and Trécul (Comptes Rendus, 1872, 
Ixxv, 655) goes so far as to propose the suppression of the 
former term, and call all the parts of a plant branches. To 
ke We should hardly have regarded Goethe’s morphology te 
_ poetically conceived.” It seems to us to have been as soberly. 
if not as & philosophically worked out” by him as by seve 
* See “Prolepsis Pl » in the Amoonitates Academic, ed. Schreb. vi, 
324, where Linnweus plemayie since Ob ‘scusapioe the homology of bud-scales, 
leaves, bracts, calyxes, petals, stame isti 
