390 
Of the Time in which different Grasses produce Flowers 
and Seeds. 
To decide positively the exact period or season, when a 
grass always comes into flower, and perfects its seed, will 
be found impracticable; for a variety of circumstances 
interfere. Each species seems to possess a peculiar life in 
which various periods may be distinctly marked, according 
to the varieties of its age, of the seasons, soils, exposures, 
and mode of culture. 
The following Table, which shows the time of flowering, 
and the time of ripening the seed of those grasses growing 
at Woburn, which are mentioned in the Experiments, must 
therefore only be considered as serving for a test of com- 
parison, for the different grasses growing under the same 
circumstances. 
Names. 
Time of Time of ripen - 
flowering. ing the Seed. 
Anthoxanthum odoratum. 
Holcus odoratus 
Cynosurus caeruleus 
Alopecurus pratensis 
Alopecurus alpinus 
Poa alpina 
Poa pratensis 
Poa caerulea 
Avena pubescens 
Festuca hordiformis. ....... 
Poa trivialis 
Festuca glauca 
Festuca glabra 
Festuca rubra 
Festuca ovina 
Briza Media 
Dactylis glomerata 
Bromus tectorum 
Festuca cambrica 
Bromus diandrus 
Poa angustifolia 
Avena elatior 
Poa elatior 
April 
29 
June 
21 
April 
29 
June 
25 
April 
30 
June 
20 
May 
20 
June 
24 
May 
20 
June 
24 
May 
30 
June 
30 
May 
30 
July 
14 
May 
30 
July 
14 
June 
13 
July 
8 
June 
13 
July 
10 
June 
13 
July 
10 
June 
13 
July 
10 
June 
16 
July 
10 
June 
20 
July 
10 
June 
24 
July 
10 
June 
24 
July 
10 
June 
24 
July 
14 
June 
24 
July 
16 
June 
28 
July 
16 
June 
28 
July 
16 
June 
28 
July 
16 
June 
28 
July 
16 
June 
28 
July 
16 
