ajor_
145 _Campanula ,, 17 July 12
trachelium_
146 _Origanum ,, 17 July 8
vulgare_
147 _Bartsia ,, 17 July 20
odontites_
148 _AEthusa ,, 17 July 20
cynapium_
149 _Helosciadium ,, 18 July 16
nodiflorum_
150 Burdock ,, 19 July 22
151 _Verbena ,, 25 July 12
officinalis_
152 _Reseda ,, 27 June 13
luteola_
153 _Inula ,, 29 July 24
dysenterica_
154 _Centranthus ,, 29 June 5
ruber_
157 _Euphrasia Aug. 3
officinalis_
158 _Inula conyza_ ,, 3
159 _Mentha ,, 8
aquatica_
160 _Habenaria ,, 11
viridis_
161 _Gentiana ,, 17 Aug. 31
amarella_

NOTES.

{1} From the _Cornhill Magazine_, March 1919.

{2} The large-leaved lime is described by Hooker as being a doubtful
"denizen."

{3} _A Naturalist's Calendar_, by Leonard Blomefield (formerly Jenyns).
Cambridge University Press. Edited by Francis Darwin, 1903.

{4a} _Calendar_, p. 3, note b.

{4b} _The Student's Flora of the British Islands_, 3rd ed., 1884, p.
191.

{5} I was led to examine them by a writer in _The Times_ (6th February
1918), who describes the buds as being as blue "as wood-smoke from
cottage chimneys."

{6} Ludwig has seen creatures, which run on the surface of the water,
carry away duckweed pollen. These fertilisers belong to the families
Hydrometridae, Corisidae, and Naucoridae.

{7} This, and part of what follows, is from unpublished notes of
lectures given at Cambridge.

{11} The present discussion is partly taken from my introduction to
Blomefield's _Naturalist's Calendar_, 1903.

{12a} _Observations in Natural History_, p. 334.

{12b} Earliest date noted, 21st April; latest, 8th May.

{12c} Earliest date, 21st March; latest, 7th May (fifteen years'
observation).

{12d} Quoted in Prior's _Popular Names o