— 937 — 
pilosella 
The underside of | dense covering of 
| stellate hairs 
the leaves 
The basis of the | 
large and stiff 
hairsofthe leaves 
pilosella >< 
aurantiacum 
aurantiacum 
uncoloured 
| 
less dense covering 
of stellate hairs 
uncoloured or very 
slightly red 
no stellate hairs 
red 
The hairiness of | hispid and with | hispid and with | hispid and with 
the scape black glandular | black glandular | numerous black 
hairs and further | hairs and further | glandular hair 
at the basis with | at the basis with | and further at the 
numerous, longer, | longer, uncoloured | basis longer, more 
uncoloured hairs | orslightlyred hairs | or less red hairs 
| = : — —- — 
Arrangement of | one large termi- 2—5 heads of | rathersmallheads 
the flower-heads | nal head | rather large size; | arranged in a co- 
| one terminal, the | rymb at the top 
| others on branches | of the scape 
| going out from 
| different places of 
| | the main-scape 
| 
| 2 
Golour of the co- | yellow, with a | lightly orange, at | orange red, at the 
rollas of the outer | narroworangered | the basis yellow, | basis lightly 
flowers stripe on the | withabroadorange | orange 
underside red stripe on the | 
underside | 
Colour of the co- | 
rollas ofthe other | 
flowers | 
pure yellow 
| yellow with orange 
red teeth 
ligthly orange, at 
the basis yellow 
A great help to clearing up these things and also to the solu- 
tion of other problems was the discovery of a Hieracium-plant with 
quite empty and shrunken anthers, a purely female plant. I 
found this plant in a lawn and saw afterwards, that it had escaped 
from the Hieracium-plot, where the same form was labelled H. 
It is a tall species of the subgenus Pilosella; it 
has a very rich-flowered corymb at the top of the scape, small 
and rather few-flowered yellow heads; the leaves are hairy, but 
excellens Blocki. 
