400 THE FERTILISATION OF FLOWERS. [PART I I 
(22). M. teniatus, Mgn. (Th.); both of these obtained the honey withot 
getting caught in the slits. (b) Muscide: (23) Ocyptera brassicaria, F, (F.) 
(24) Lucilia (Th.) In several flowers which I dissected, the corpuscula an¢ 
pollen masses were still in their places, though pollinia, which must hay 
come from other flowers, had been inserted into the stigmatic chambers. 
The following additional list is taken from my Weiter 
Beobachtungen, i. p. 61. The insects were for the most par 
observed in my garden in July. ; 
A. Diptera—Empide : Empis livida, L., s.! B. Hymenoptera—A pide. 
Bombus muscorum, L. (B. agrorum, F.) g¢, s.! ab., Wurzburg; Ceelioxys 
conoidea, Ill, 9 ¢! ab. C. Lepidoptera—Noctuide : Hypena proboscidalis 
L., s., not extracting the pollinia; Plusia gamma, L., do., in the evening 
Sphingide : Sesia formiciformis, Esp. g (teste Speyer), do. D. Neuroptera: 
Panorpa communis, L., s. and extracting the pollinia. | 
Asclepias curassavica, L., according to Fritz Miiller’s observation: 
in South Brazil, is sometimes visited by wasps, but infinitely mo: 
frequently by a great variety of butterflies, on whose legs the 
corpuscula and pollinia of this plant may often be found. One 
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Fic. 133, 
Butterfly’s foot, bearing eleven corpuscula (k) and eight pollinia (st) of Asclepias curassavica, L. & 
butterfly, like a Vanessa, bore on one leg no less than eleven cor-— 
puscula of this Asclepias. Eight only of the twenty-two pollinia 
remained, the others had been employed in the fertilisation of 
other flowers. i 
Asclepias tenwifolia (?) was seen by Hildebrand to be fertilised 
by a cabbage-white butterfly (361). | 
Gomphocarpus (Asclepias) fruticosa, R, Br.—The structure of 
the flower and the way in which insects visit it have been described — 
by Sprengel (No. 702, pp. 139-150): he fell into the error of 
considering the upper surface of the stigma-disk to be the stigma. 
Araujia albens, Brot. (Physianthus, Mart.), is fertilised by 
humble-bees, to whose tongues the corpuscula become attached 
as 
