LOCK: ECOLOGICAL NOTES 
Urban has made important observations upon the floral 
mechanisms of the Turnerace®.* I have not had access to 
Urban’s original monograph, and have relied principally 
upon the fairly full abstracts given in Just’s Bot. Jahresb. 
for 1883. But for a complete transcription of the chapter in 
which this observer describes the result of his examination 
of living plants I am indebted to Miss M. A. Graves of 
Cambridge, to whom I desire to express here my very 
hearty thanks for her assistance. 
Gilgt thus summarizes Urban’s observations upon the 
method of pollination in the order :-The flowers of very 
many Tumeracese open their petals, which are often brightly 
coloured, m the morning or sometimes not until midday; 
m t e evening they become closed again and withered. 
unng the day honey is very abundantly secreted by the 
flowers, and many insects are thus attracted. If, however, 
cross po matron has not taken place by their aid, self- 
° c , our8wUh great regularity, for when the petals 
C 8 Zl y T t0getb ” * *»» ape*, and the anthers and 
sfagmas arc thus brought into close contact. 
beings ?1 b9d f0rt5 ” eight ol Turneracere as 
as incomcler* 1 M Probably dimorphic, and sir 
homostyled iJ ^ 8i,e ° ie8§ ” 
of species examined ^ 
stated 6 tlTfiT ° f T ’ Ulmifolia known as T. angustifolia is 
d^ll; and is described at length. This 
here briefly from livin g plants, I shall 
ummarize before passing on to my own 
S Since these notes were 
^eeieaT. ulmifolia. (Tfe 1 lea1 ^ tha * this actually applies to the 
J«®ver, no hint of this lUTT* “ ?° t V Jahre8b - ^es, as far as lean 
heteroatyliam of certain t ^ e _ case ^ appears therefore that the 
fr°m already been described. 
record of dimorphism/ 
J, whilst noting in this place the < 
