Dates op Flo weeing op Plants observed in 1889 and 1890, -With the Mean Date fob 1876-88. 
1889. 
1890. 
No. 
Species. 
St. 
Albans. 
Harfen- 
DEN. 
Hert¬ 
ford. 
Hitchin. 
St. 
Albans. 
Harpen- 
DEN. 
Hert¬ 
ford. 
Hitchin. 
1 
1876-88. 
Anemone nemorosa (wood anemone) 
Mar. 31 
Mar. 29 
Mar. 31 
Mar. 15 
Mar. 30 
Mar. 16 
Mar. 16 
Mar. 14 
Mar. 16 1 
2- 
Ficaria verna (lesser celandine). 
Feb. 18 
Mar. 28 
Mar. 15 
Feb. 25 
May 16 
Feb. 10 
Feb. 24 
3. 
Ranunculus acris (upright crowfoot) 
. 
May 6 
Apl. 19 
Apl. 19 
Apl. 15 
Apl. 20 
May 13 
Apl. 24 
4. 
Caltha palustris (marsh marigold) .... 
Apl. 18 
Apl. 27 
May 31 
Apl. 1 
May 13 
June 19 
Apl. 13 
Apl. 20 
Apl. 6 
Mar. 16 
Mar. 27 
June 5 
June 6 
June 1 
June 7 
June 2 
May 28 
June 26 
May 30 
June 2 
6. 
Nasturtium officinale (water-cress).... 
May 30 
Apl. 27 
May 29 
7. 
Cardamine pratensis (cuckoo-flower) 
Apl. 21 
Apl. 28 
Apl. 18 
Apl. 21 
Apl. 19 
Apl. 6 
Apl. 21 
Apl. 14 
Alliaria officinalis (garlic-mustard).... 
May 5 
Apl. 14 
Apl. 21 
Apl. 30 
(M- 4 
Apl. 20 
Mar. 10 
Apl. 19 
9. 
Erophila vulgaris (whitlow grass). 
Apl. 26 
Mar. 31 
Mar. 4 
Mar. 28 
Mar. 14 
Mar. 10 
10. 
11. 
12. 
Viola odorata (sweet violet). 
Mar. 21 
Mar. 24 
Mar. 17 
May 9 
June 1 
May 21 
May 18 
May 19 
Mar. 15 
Mar. 16 
May 22 
Mar. 28 
May 22 
May 22 
Feb. 19 
May 11 
May 26 
Lychnis Flos-cuculi (ragged Robin) . 
June 8 
June 8 
13. 
Stellaria Solostea (greater stitchwort) 
Apl. 12 
Apl. 23 
Apl. 19 
Apl. 25 
May 24 
Apl.' 14 
Apl. 15 
Mar. 30 
Apl. 16 
Apl. 7 
14. 
Malva silvestris (common mallow). 
June 8 
June 6 
■ ..... 
June 5 
June 11 
June 8 
15. 
16. 
17. 
Hypericum quadratum(squ<ueSt J .vr.) 
H. pulchrum (upright St. John’s wort) 
Geranium Robcrtianum (herb Robert) 
May 12 
May 12 
July 14 
July 2 
May 9 
July 9 
June 30 
May 1 
May 23 
July 16 
July 6 
May 8 
Apl. 24 
July 9 
June 30 
Apl. 29 
18. 
Euonymus europccus (spindle-tree) ... 
June 1 
May 23 
June 1 
May 6 
June 1 
May 29 
June 2 
19. 
Acer Pscudo-platanus (sycamore) . 
May 5 
. 
May 16 
May 7 
Apl. 19 
Apl. 20 
Apl. 25 
May 4 
20. 
JEsculus Hippocaslanum (h. chestnut) 
May 7 
May 10 
May 7 
May 12 
May 7 
May 12 
May 4 
May 6 
May 10 
21. 
Cytisus Laburnum (laburnum). 
May 13 
May 20 
May 16 
Mar. 14 
May 8 
May 6 
May 10 
May 10 
May 19 
22. 
Trifolium repens (Dutch clover). 
June 5 
May 23 
May 24 
May 6 
May 17 
May 19 
23. 
Lotus corniculatus (bird’s foot trefoil) 
June 5 
May 19 
. 
May 19 
May 30 
May 16 
May 17 
May 22 
24. 
Vicia Gracca (tufted vetch). 
June 15 
June 6 
June 16 
June 28 
June 23 
May 18 
June 6 
May 9 
June 3 
May 16 
June 8 
May 1 
May 26 
Apl. 30 
June 4 
26. 
Z«t/jyi-MsjDi-atoisw(meadowvetchling) 
June 15 
June 7 
27. 
28. 
Apl. 16 
Apl. 28 
Apl. 19 
June 13 
Apl. 20 
June 25 
Apl! 13 
Apl. 3 
Mar. 23 
Mar. 28 
Mar. 29 
Spireea TJlmaria (meadow sweet) . 
June 19 
June 20 
June 17 
29. 
Potentilla anserina (silver-weed). 
May 23 
May 21 
June 1 
May 16 
May 16 
May 17 
June 6 
May 25 
June 6 
May 30 
May 30 
May 21 
June 1 
May 10 
June 3 
May 26 
May 15 
June 4 
May 22 
31. 
Sorbus Aucu'paria (mountain ash). 
May 26 
May 23 
May 22 
32. 
Cratcegus Oxyacantha (hawthorn) . 
May 14 
May 18 
May 12 
May 7 
May 11 
May 17 
May 8 
Apl. 30 
May 15 
33. 
34. 
Epilobium hirsulun ifhairy willow-hb) 
E. montanum (broad willow-herb). 
;;;;; 
June 13 
June 27 
June 6 
July 3 
June 7 
June 15 
June 22 
July 13 
June 1 
July 12 
June 12 
July 7 
35. 
Angelica silvestris (wild angelica) . 
June 30 
July 31 
July 27 
Aug. 9 
Aug. 1 
36. 
Daucus Carota (wild carrot). 
July 2 
June 29 
July 9 
July 12 
July 3 
37. 
Hcdera Helix (ivy) . 
Sept. 22 
. 
Sept. 15 
Sept. 20 
Oct. 5 
Oct. 12 
Sept. 24 
38. 
Cornus sanguinea (dog-wood). 
June 23 
June 16 
June 13 
June 15 
June 17 
June 18 
39. 
Syringa vulgaris (lilac) . 
May 12 
May 9 
May 7 
May 6 
May 8 
May 4 
May 3 
May 10 
40. 
Galium Aparine (cleavers). 
May 30 
May 19 
May 8 
May 24 
May 11 
May 7 
May 16 
41. 
G. verum (yellow bedstraw). 
June 26 
June 23 
June 29 
..... 
. 
June 20 
June 30 
June 28 
42. 
Eipsacus silvestris (wild teasel) . 
Succisa pratensis (devil’s bit) . 
July 30 
Aug. 22 
. 
July 27 
Aug. 9 
July 28 
43. 
June 23 
June 19 
June 29 
Aug. 13 
July 27 
44. 
Petasites vulgaris (butter-burr) . 
Mar. 31 
May 17 
..... 
Mar. 14 
. 
Mar. 22 
45. 
Tussilago Farfara (coltsfoot) . 
Achillea Millefolium (milfoil). 
Feb. 18 
Feb! 17 
Feb. 17 
Feb. IS 
Mar. 19 
Feb. 12 
Feb. 24 
46. 
June 24 
June 26 
June 22 
June 15 
j une 23 
June 21 
47. 
Leucanthcmum vulgare (ox-eye). 
May 25 
May 23 
May 21 
May 18 
May 19 
May 18 
May 21 
May 24 
May 19 
48. 
Artemisia vulgaris (mugwort) . 
. ! 
July 25 
July 24 
July 29 
Aug. 8 
July 30 
49. 
Senecio Jacobcea (ragwort) . 
. 
June 30 
June 25 
June 22 
June 29 
50. 
Centaurea nigra (black knapweed) . 
June 15 
June 12 
June 20 
July 13 
June 22 
..... 
June 25 
June 28 
June 19 
51. 
Cirsium lanceolatum (spear thistle) . 
C. arvense (field thistle) . 
. 
June 27 
July 13 
June 29 
July 13 
July 19 
June 21 
52. 
July 3 
June 23 
June 27 
June 26 
June 26 
June 22 
53. 
Sonchus arvensis (corn sow-thistle) . 
July 3 
July 14 
July 13 
..ii. 
July 17 
July 14 
July 8 
54. 
Hieracium Pilosella (mouse-ear) . 
June 1 
May 19 
June 16 
June 8 
May 8 
June 7 
Mar. 17 
55. 
Campanula rotundifolia (hair-bell) . 
July 2 
July 2 
July 2 
July 7 
July 9 
July 4 
July 5 
56. 
Ligustrum vulgare (privet) ....„ . 
June 27 
July 8 
July 1 
June 22 
June 19 
57. 
Calystegia sepium (greater bindweed) 
July 7 
July 15 
July 4 
...... 
July 20 
July 11 
July 6 
58. 
Symphytum officinale (comfrey) . 
Pcdicularis silvatica (red rattle). 
May 14 
. 
May 13 
May 10 
May 11 
May 10 
59. 
May 19 
May 17 
. 
. 
. 
May 16 
60. 
Veronica Chamtedrys (speedwell) . 
Apl. 27 
Apl. 28 
Apl. 20 
Apl. 19 
Apl. 19 
Apl. 30 
Apl. 20 
Apl. 26 
Apl. 26 
61. | 
Mentha hirsuta (water mint). 
July 31 
July 20 
July 20 
Aug. 18 
July 28 
62. 
Thymus Serpyllum (wild thyme). 
June 23 
June 8 
June 29 
June 11 
June 10 
63. 
Prunella vulgaris (self-heal) . 
June 15 
June 16 
June 19 
June 13 
June 21 
June 19 
64. 
Glechoma hederacea (ground-ivy). 
Apl. 14 
Apl. 17 
Apl. 7 
Apl. 6 
Apl. 4 
Apl. 2 
Mar. 28 
Mar. 21 
Mar. 28 
65. 
Galeopsis tetrahit (hemp-nettle). 
Stachys silvatica (hedge woundwort) 
June 22 
..... 
June 24 
June 20 
66. 
June 14 
June 15 
June 6 
June 13 
June 15 
June 15 
June 13 
June 8 
67. 
Ajuga reptans (bugle). .' . 
May 12 
Mar. 29 
May 9' 
Apl. 7 
May 5 
May 10 
Apl. 3 
Apl. 30 
May 7 
Apl. 3 
Apl. 30 
May 4 
Apl. 4 
Apl. 20 
May 13 
Mar. 28 
May 5 
Mar. 22 
68 . 
Primula officinalis (cowslip) . 
Mar. 31 
Apl. 2 
Apl. 27 
69. 
Plantago lanceolata (ribwort plantain) 
May 3 
May 6 
Apl. 24 
Apl. 22 
70. 
j Mercurialis perennis (dog’s mercury) 
; TJlmus montana (wych elm). 
Feb. 12 
Feb. 11 
Mar. 15 
Mar. 8 
Mar. 14 
Feb. 24 
71. 
Mar. 24 
Apl. 19 
Mar. 31 
Mar. 22 
Feb. 14 
Feb. 16 
Feb. 4 
Mar. 5 
72. 
. Salix Caprea (great sallow). 
Mar. 27 
Mar. 30 
Mar! 22 
Mar!' 8 
Feb. 28 
Mar. 16 
Mar. 16 
Mar. 12 
73. 
Fagus silvatica (beech). 
. 
May 11 
May 7 
May 13 
74. 
Corylus Avellana (hazel). 
: Orchis maculata (spotted orchis). 
Feb! 14 
Feb. 8 
Feb!' 3 
Jan. 29 
Jan. 14 
Jan. 12 
Jan. 19 
Jan. 26 
76. 
June 6 
May 30 
June 2 
May 31 
June 27 
June 5 
76. 
Iris Pseudacorus (yellow iris). 
June 3 
June 6 
May 29 
June 26 
June 5 
77. 
, Narcissus Pseudo-narcissus (daffodil) 
Mar. 21 
Mar. 30 
Apl. 4 
Mar. 30 
Mar. 17 
Mar."l8 
Mar. 30 
Mar. 16 
Mar. 10 
78. 
Galanthus nivalis (snowdrop). 
Jan. 30 
Feb. 3 
Feb. 3 
Jan. 22 
Jan. 25 
Jan. 28 
Feb. 16 
Jan. 12 
Jan. 24 
79. 
Scilla nutans (blue-bell). 
May 4 
Apl. 26 
Apl. 25 
Apl. 26 
Apl. 14 
Apl. 4 
Apl. 6 
Apl. 3 | Apl. 17 
