158 THE FERTILISATION OF FLOWERS. [PART III. 
homogamy and towards dicecism (609). (List of visitors in Low 
Germany, 590 Il. p. 218. 
Geranium phoeum, L., is proterandrous. The two whorls of 
stamens develop in succession, and the stigmas do not expand 
until the stamens have again bent outwards. The flowers are 
visited for their honey by humble-bees and by the hive-bee 
(229, 665). 
Geranium macrorhizon, I., is proterandrous, and the earlier 
flowers are female only. The same is true of several species 
of Pelargonium (356, p. 479). 
83. Eropium cicutarium, L’Hérit—The honey is secreted 
and stored as in all our other Geraniums; the five outer anthers 
Fic. 49.—Erodium cicutarium, L’ Heérit. 
1.—Flower, seen from above and in front. 
2.—One of the two superior petals, magnified half as much again, showing the hairs at its base 
which protect the nectar. The three dark lines converging towards the base form a ‘‘ path-finder "’ 
common to all the petals ; the elliptic spot is a ‘‘ path-finder’’ peculiar to the two upper petals. 
8.—The reproductive organs. a, anthers; st, stigma; n, nectary; hk, drop of honey; ji, the five 
filaments of the inner whorl of stamens, whose anthers are aborted. 
4.—Centre of the flower, after removal of the pistil. A, point of attachment of the pistil; n, 
nectaries. with their honey-drops protected by the two rows of hairs, 
5.—Coccinella septempunctata, an awkward visitor of this flower. 
only are fertile, as in G. pusillum. As in other Geraniums the 
flowers turn towards the sun, rendering themselves conspicuous, in 
spite of their short stalks, among all the other flowers of the bare, 
sunny slopes where they chiefly grow. 
While in the species of Geranium, the flowers though set 
obliquely are quite regular, here there is a distinct difference 
