162 
THE NATURE-STUDY OF PLANTS 
GERAIN 
POLLINATION, FIRST-INSTANCE 
CRANESBILLS (British species) AND 

Taste I.—THE FLOWERS. 

SEPARATION OF THE SEXES IN TIME. 
POLLINATION MODES. 



Perennial species— 
Geranium pheum 
pratense 
sylvaticum 
eh) 
” 
pyrenaicum 
” 
sanguineum 
” 
Annual species— 
Geranium rotundifolium 
= molle 
= columbinum 
A dissectum 
lucidum 
pusillum 
” 
” 
Erodium cicutarium— 
Sun-form 
Shade form 
Robertianum 

Maturity of Sexual 
Organs. 
All the anthers first 
Ditto 
Ditto 
or rarely anthers 
and stigmas to- 
gether 
All the anthers first 

Ditto 
(1) 5 anthers; (2) 
stigmas; (3) other 
5 anthers 
Ditto 
orrarely anthers and 
stigmas together 
(1) some, but less 
than 5, anthers; 
(2) stigmas; (3) 
the remainder of 
the anthers Or 
rarely anthers and 
stigmas all  to- 
gether 
Stigmas first, or 
rarely some an- 
thers before the 
stigmas 
Stigmas first, or 
rarely anthers and 


stigmas together 
Stigmas first 
Ditto 
All the anthers first, 
or anthers and 
stigmas together 
Stigmas first, or | 
anthers and stig- | 
mas together | 
| 
| 
| 

Overlap. 
No 
No 
Yes, but 
rarely 
Very rare, 
if ever 
Yes 
Yes 
Yes 
Yes 
Yes 
Yes. 
Yes 
Yes 
Yes 
Yes 


Cross only 
Cross only 
Cross and rarely self 
Cross, and very rarely 
if ever, self 
Cross and sometimes 
self 
Cross and self 
Cross and, late in the 
year, self 
Cross and self 
Cross and self 
Cross and self 
Cross and self 
Cross, but generally 
self 
Cross and self 
Cross and self 

