A SE 
1892. ] Open Letters. “27 
The Baltimore oriole mutilating flowers. 
The interesting note of J. Schneck in regard to the oriole piercing 
the flowers of the trumpet-vine for the nectar reminds me of a note 
fusion have just come to my notice and I cannot forbear referring to 
them. One is on pp. 162, 163 of Warming’s Haandbog t den system- 
atiske Botanik (German translation), where under the bold headline 
Die ungeschlechiliche Generation der mae caegs occurs considerable 
talk about “eingeschlechtig,” “zweigeschlechtig” and “ hermaphrodite” 
flowers, thus affording an exquisite illustration of how easy it is to 
classify black, blue and green under the generic head of pale yellow. 
rch. 
et us see what the condition really is in plants of the type of 
Lychnis. The pollen grain or microspore produces a one or two-celled 
maturity and was a pollen-spore. In ee a 
mother-cell formed four nuclei and the potentially 
tents produced only ove spore — the embryo-sac — decause 0: 
cell-nuclei reabsorbed the others, and one cell united to itself the th 
Si ould there be found a more instructive exam 
high spore-nutrition tending to develop a female plant ? It is su rb. 
One might challenge the zodlogist to bring forward any evidence 
ne of the 
ree sister 
