73 
REVISION OF THE NATUEAL ORDER HEDERACE^. 
By Berthold Seemann, Ph.D., F.L.S. 
{Continued from Vol, IL^ p. 309.) 
(Plate XXVII.) 
In giving the literary history of the Rederacea (p. 235), I omitted 
to state that it was Eoper ('Botanische Zeitung,' 1818, p. 225), who, 
in his able paper on Aj^aliacecB^ first pointed out several characters of 
these plants that had been entirely overlooked by systematic botanists, 
viz, the articulation of the pedicels, the calyculus, and the sestivation; 
to the latter he drew attention some years previously (1834). But 
Decaisne and Planchon first applied these characters in circumscribing 
b 
the genera. It should have also been mentioned that Miquel has pub- 
lished a memoir on Araliacem in his ' Annales Jlusei Botanici Lugduno- 
Batavi,^ 1863, vol. i., where he proposes four new genera, viz. Osmoxylon^ 
Textoria, Kalopanax, and JSotryopanax ; the last genus would be a sec- 
tion of my genus Groiefendia ; and Textoria is identical with Dendro^ 
r 
panax. 
III. On Sciadopakax, a New African Genus. 
By the courtesy of Sir W. J. Hooker, T am able to give an illustra- 
tion of a new East African genus of HederacetB, discovered by M, 
Boivin, at Nossibe, Madagascar, which I propose to name Sciadopanax. 
It shares with the American genus Bidymopanax the peculiarity of 
having vitt(jey but it differs from all the other genera I have examined 
by its very singular four-lobed seeds. "When I first saw it at the Kew 
Herbarium, 1 fancied it might possibly be the obscurely known Maralia 
Madagascariemisy and to make quite sure I forwarded a proof of my 
plate to my friend Senor Triana, to compare it with the authentic 
specimens of Maralia existing at the Paris Herbarium. Senor Triana 
, communicated on the subject with M. Decaisne, to whom we are in- 
debted for one of the ablest papers on Hederaoeoe^ and the latter very 
kindly took the trouble to compare my plate with the plant in question. 
The subjoined" extract from his letter informs me of the result : 
" I have examined plate xxvii. of the 'Journal of Botany * and com- 
pared it Vi\^ Maralia Madagascariensis of Petit Thouars' herbarium 
VOL. III. [march 1^ 1865.] G 
