1844.] Linnean Society. 223 



cirrhi raarginales distantes : ocelli nndi : pediinculus elongatus, pyra- 

 midatus, veil trie ulum par vum in extremitate gcrens; ore lobato, fim- 

 briato. 

 Type, Geri/onia proboscidalis. 



November 19. 

 R. Brown, Esq., V.P., in- the Chair. 



Read a Note by William Griffith. Esq., F.L.S. &c., to his pajDer 

 " On the Ovulum of Santalnm, Osyris, Loranthus, and Viscnm," 

 printed in the last Part of the Society's Transactions. 



In this note Mr. Griffith states, that " having had opportunities, 

 after my revised examination of Santalum album, of examining a 

 Malacca species of Osyris (belonging to a section characterized by 

 a quinary number of parts of the flower, a less tendency to separation 

 of the sexes, and habit) , I find full grounds for believing that the 

 mode of development of the ovulum of Osyris Napalensis is altogether 

 like that of Santalum album, the only difference being the unim- 

 portant one of the short anterior prolongation of the embryo-sac 

 outside the nucleus. The minuteness of the ovulum, and the rapidity 

 •with which the anterior exserted part above the septum becomes 

 filled with albuminous tissue, during which the proper membrane of 

 this part of the sac becomes incorporated with the albuminous tissue, 

 must be my apologies for this additional and very important error. 



" I may tate this opportunity of stating, that this Malacca Osyris, 

 deducting the great minuteness of the ovulum, has given me as good 

 evidence as Santalum in my opinion has, of the non-existence of any 

 cell or body of or in the embryo-sac, from which the embryo is de- 

 rived, independent of the pollen-tube. The vesicle from which the 

 embryo is to be derived does not appear to exist before the applica- 

 tion of the pollen-tubes to the sac, it bemg in fact, so far as my 

 means of observation enable me to go, the anterior extremity of the 

 pollen-tube itself." 



Read also a paper " On the Development of the Ovulum in Avi- 

 cewwm," by William Griffith, Esq., F.L.S. &c., containing a more 

 detailed description of the process than the note referred to in the 

 "Proceedings,' p. 170-171- 



