SHOWING MENDELIAN RESULTS. a 2 
TABLE 2*. 
U. GLABRA U. MONTANA 
[o 5 OS | AL AL | 
[os oL AS m HUNTINGDON ELM. 
POLLEN GRAINS OF HUNT? ELM’ 
NENNEN ЧИ 
Соз OL AS AL 
Ve olL olL 
Hung? ELM | e AS|^S 
hi 7^ AA SA À Ly 
AILIALIAL 
ZE L DES 
IN THE 16 SQUARES ARE 16 SEFPLINGS OF THE HUNTINGDON EL" 
А visialy  PIFFERENT KINDS 
5 PURE, AND © IMPURE = q9 
и .. D 
PUR RE = 
ot =. AND 2 ШРИ 3 
AS PURE, AND E IMPURE = 3 
L 
PURE., = 1 
* Every U. glabra tree is OS OS. 
Every U. montana tree is AL AL. 
Each Huntingdon elm tree must contain all these characters, and is OS OL AS AL. 
Its ovules must be of 4 kinds, and of 4 kinds only :—OS, OL, AS, AL. 
Its pollen-grains must also be of these 4 kinds. 
There are 16 different kinds of seedlings possible. 
Of these, as O is dominant to A, 
and S » „ L, 
there are 9 seedlings which will look OS. Those containing OS. 
3 » » » OL. Those containing no S, and containing OL. 
3 » » » AS. Those containing по О, and containing AS. 
1 » „ » AL. This contains neither О nor S. 
Only one of each of these 16 kinds will breed true, namely, the four, 
OS OL AS AL. 
OS OL AS AL. 
