Mr Blackwall on the Instincts (ff Birds. 5io 



Many additional arguments might be advanced, and a multi- 

 tude oC highly respectable authorities quoted, in support of this 

 doctrine; but conceiving that sufficient evidence has been al- 

 ready produced, I shall only add, that I am not aware of any 

 serious objection which can be urged against it. — Memoirs of 

 the Literary and Philosophical Society (yf Manchester. Second 

 Series^ vol. v. 



Additional Remarks on Ercilla, Mac?'omeria, Aitonla, and 

 Citronella. By David Don, Esq. Librarian of the Linnean 

 Society ; Member of the Imperial Academy Naturae Curio- 

 sorum; of the Imperial Society of Naturalists of Moscow ; 

 of the Royal Botanical Society of Ratisbon ; and of the 

 Wernerian Society of Edinburgh, &c. (Communicated by 

 the Author.) 



ERCILLA, vol. xiii. p. 237- 



Xn my remarks on this genus, I have stated the reasons which 

 led me to dissent from the opinion of M. Adrien de Jussieu, 

 respecting its affinities ; and although, in the absence of a know- 

 ledge of the perfect seeds, I have spoken rather too confidently 

 of its intimate affinity to the PhytolacecB, yet the points of agree- 

 ment between them are so numerous, and so marked, that they 

 appear to indicate more than mere analogies of structure, and 

 render the correctness of the above arrangement at least proba- 

 ble. In the eighth part of the ^' Botanical Miscellany," Dr 

 Hooker and Mr Arnott have given an accurate figure and de- 

 scription of this plant under the name of Bridgesia spicata, and 

 have proposed to refer it to the RutacecB ; but I regret that I 

 am obliged to differ entirely from the views of my learned 

 friends on this subject, being fully persuaded that here there is 

 but little affinity. The Rutacece have terminal and very differ- 

 ently constructed stigmata, the anthers erect and inserted by 

 their base, and the normal form of the leaf compound, and fur- 

 nished with glandular dots. In the structure of the perianthium 

 and pistillum, Ercilla agrees with Coriaria, but, except in these 

 particulars, I am not disposed to think that there is much affinity 



