Ge ' [ASSEMBLY 
It is difficult to decide what is an average plant in species which 
change so greatly in luxuriance according to their opportunity for 
growth. In offering figures the word “average ” will be used as ap- 
plying to those growing on the Station farm. 
Shepherd’s Purse — Capsella Bursa-pastoris. June 21. An ayer- 
age plant contained about 1,000 pods; each pod at least twenty seeds, 
and more bloom to come. A better specimen showed 2,200 pods, and 
still blooming; a vigorous specimen had 4,400 pods, and more to 
come. The number of seed to a plant may, therefore, be estimated 
at from 20,000 to 80,000. 
Mallow —Mualva rotundifolia. June 21. A fair specimen had 1,- 
100 blossoms, each producing fifteen seed, and’ much more bloom to 
come. A fair estimate at least, seeds, 16,500. 
Chickweed — Stellaria media. June 21. A fair specimen showed 
one hundred and twenty-three flowers and capsules, each capsule con- 
taining from seven to ten seed. A better plant had four hundred and 
seventy-one blooms or seed cases, and more yet to come. ‘This plant 
continues blooming and seeding through the whole season, A fair 
estimate of seed to a plant at one time, therefore, 1,000 to 4,000. 
Corn Speedwell — Veronica arvensis. June 21. One plant showed 
forty-three pods, and ninety seed to a pod ; a more vigorous plant had 
175 pods, and about 101 seed to a pod; another plant had seventy- 
eight pods, and another 123. The number of seed to a plant may 
therefore be estimated as from 3,800 to 15,700. 
Thyme-leaved Speedwell — Veronica Serpyllifolia. June 23. One 
plant had 142 pods, one pod fifty-eight seed. The number of seed to 
the plant estimated as 8,000. 
Black Mustard — Sinapis Nigra. <A fair, rather smallish plant, had 
120 blossoms and pods, and one pod fifteen seed. ‘The number of 
seed to a plant may therefore be put at 1,800. 
Dandelion — Taraxacum dens-leonis. June 22. Each head of. a 
dandelion flower contains about 120 seed. It isa very poor plant that 
does not give ten blooms toa root. The number of seed to a plant 
may be estimated as much over 1,200. 
Curled Dock — Rumex Crispus. June 22. A fair sample had nine 
stems. One stem selected as an average one had twenty-one flower- 
spikes. One average flower-spike counted 369 blooms. A single stem 
had then about 7,749 blooms, and the nine stems, 69,700. A larger 
plant had ten stems; the largest stem, forty-one seed-spikes, the 
smallest, twenty seed-spikes. ‘The largest spike had 630 whorls of 
seed, the smallest, 219 whorls. The computed number of seed, there- 
fore, 93,390. 
Corn Cockle — Lychnis githago. July 1. A vigorous plant had 
sixty buds and blossoms. ‘I'wo seed-puds had forty-nine and sixty-two 
seed, respectively. ‘The seed may be computed at 3,300. 
Ox Hye Daisy — Leucanthemum vulgare. June 25. A bloom of 
average size contained 802 achenes; another, 895 achenes. One plant 
had seventy-two, and another 120 blooms. While but quite often 
there is but one stem, yet frequently there are more to a root, up even 
to twenty-three counted. One stem may have thirteen blooms. ‘The 
number of seed to a plant may therefore be computed at from 800 to 
96,000. 
