291 
>4 Phcenological Study. 
other years. I have compared the flowering dates of 100 plants in 
1919 (some at the beginning of the year and others in the summer) 
with Blomefield’s dates for these species. In the early part of 
the year, out of 45 dates, 15 are earlier and 30 are later than 
Blomefield’s dates. Of the 55 readings from June onwards 33 are 
earlier, and 22 later than Blomefield’s. Thus out of 100 readings 
48 of my flowerings are earlier than his, and 52 are later. In other 
words my results for 1919 are broadly speaking the same as 
Blomefield’s. 
Alphabetical List of Plants whose first flowering is recorded 
in the following charts. The numbers refer to the order in 
which the species appear in the charts (pp. 296-298). The date of 
flowering in each of the three years, 1917, 1918, 1919 is also given. 
No. Species. Date of first flowering. 
1917. 
1918. 
1919. 
75 
Acer campestre..\ 
• •• 
May 
5 
May 24 
42 
„ Pseudo-Platanus ... 
• •• 
May 
6 
y y 
9 
„ 9 
164 
Achillea millefolium 
July 
7 
July 
8 
June 26 
19 
Adoxa moschatellina 
• •• 
Mar. 
16 
April 8 
117 
.Egopodium podagraria... 
June 
6 
June 7 
192 
Ethusa cynapium 
July 
17 
July 
2 
July 12 
166 
Agrimonia Eupatoria 
... 
June 
27 
» » 
3 
June 27 
Agropyrum caninum 
... 
» > 
10 
177 
„ repens 
• •• 
July 4 
215 
Agrostis alba 
July 
7 
„ 24 
51 
Ajugareptans . 
... 
May 
7 
April 28 
May 14 
Alchemilla vulgaris 
» » 
21 
220 
Alisma Plantago ... 
July 27 
37 
Alliaria officinalis 
May 
14 
April 
8 
May 6 
53 
Allium ursinum ... 
• •• 
y y 
16 
May 
10 
.» 14 
Alnus glutinosa $ 
... 
Feb. 
18 
63 
Alopecurus pratensis . 
May 
9 
May 17 
185 
Anagallis arvensis 
July 
2 
July 8 
22 
Anemone nemorosa 
Mar. 
26 
April 10 
225 
Angelica sylvestris . 
July 31 
212 
Anthemis arvensis 
• • • 
July 
2 
„ 23 
54 
Anthoxanthum odoratum 
May 
9 
May 15 
74 
Anthriscus cerefolium ... 
• • • 
„ 23 
172 
Anthyllis vulneraria . 
• • • 
July 
11 
June 
6 
June 30 
201 
Apium nodiflorum 
y y 
18 
July 
7 
July 14 
208 
Arctium Lappa ... 
... 
19 
,, 20 
124 
Arrhenatherum avenaceum 
June 8 
33 
Arum maculatum . 
... 
May 
10 
April 28 
173 
Asperula cynanchica . 
• ■ • 
June 30 
76 
,, odorata. 
May 
15 
May 
17 
May 24 
106 
Avena pratensis ... 
... 
i y 
29 
June 2 
