228 MR. R. A. ROLFE ON THE APOSTASIEX. 
the structure of the seeds is quite different. Even the supposed 
analogies are not very close ; for the andrecium in Hypozidee is 
regular. In fact this group so thoroughly agrees with Amarylli- 
dacee, that it is clearly only a tribe of that order. The simila- 
rities in certain characters between Orchidee and Scitaminee, 
which have been pointed out as tendingto justify the ordinalsepara- 
tion of Apostasiea, are in a like manner simply developmental ana- 
logies; fortheseeds are altogether different, and the lineof ancestry 
of Scitaminee would have to be traced back to the diverging-point 
of at least one or two other Orders before the point of contact 
or common ancestry with Orchidee was reached. In short, the 
lines of bifureation, if rightly interpreted, are as (in ideal) shown 
in the annexed diagram (fig. 2, p. 224, shown in plan in fig. 1), and 
all other affinities are necessarily more remote, and therefore out- 
side the scope of the present paper. The exact point of contact 
of the Arrhizogonee with its parent branch, I believe, yet remains 
to be solved. 
GEOGRAPHICAL DISTRIBUTION. 
The (known) geographical distribution of the Apostasiee is set 
forth in the following table; but I believe on this point very 
much yet remains to be done, and I ean only hope that those 
Indo-Malaya. 
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Neuwiedia | 
veratrifolia ......... es deed. | | X len |. |? 
Lindleyi … … … … … seen Poe | X fon fa. | X 
calanthoides ......... cee [owes Poe | wee len len ben | wee PX 
Curtisii ............... we foe Poe |X I. | x 
Zollingeri ............ wee free Pee | XIIe? 
Griffithii ............ wee | wee | X | | 
Apostasia | | 
§ Mesodactylus | | 
odorata ............ len len bon | X lan € ? 
Walliehii ......... x! Xp... |X ? wee | cee |X 
stylidioides ...... eee pee es a bene | X 
§ Adactylus | 
Lobbii ............ eee ler ben ide X 
nuda ........ ...... x x | x | | 
