MENDELIAN CHARACTERS IN PLANTS AND ANIMALS, 
ORCHIDS. 
In my experiments and observations with orchid hybrids of various 
genera and species, three pairs of Mendelian characters haye been found, 
zation of spotted and striped sap patterns. 
te) 
Oo 
o 
TQ 
=) 
=) 
= 
ea) 
2) 
= 
G 
‘e) 
LY 
] 
| 
| 
S 
on 
Fie 
x Hera showing seg 
Forms of Paphiopedilwm 
Pirro}n 
viz. purple sap colour and albino, spotted sap and striped sap patterns 
(see figs. 29, 80, and 81), white and green areas, the first-named of the pair 
being dominant over the other, which is recessive. The first pair may be 
regarded as presence and absence of purple sap, presence being dominant. 
