318 ZANTHOXYLUM ALATUM. 



1863. some bints respecting those here mentioned, and for numerous 

 careful observations upon them, I have to thank Mr. Charles 

 John Workman of the Eoyal London Ophthalmic Hospital, 

 Moorfields, and Mr. Bader of Guy's Hospital. [^V. Repert. of 

 Pharm., xii. 435.] 



MEMORANDUM ON A PRESUMED CASE OF PARTHEN- 

 OGENESIS IN ZANTHOXYLUM ALATUM, Eoxb. 



(Read before the Linnean Society, Nov. 19, 1863.) 



1863. IN January last Dr. Anderson, brought under the notice of 



the Linnean Society a presumed case of parthenogenesis in a 



Aberw. species- of Aberia, a shrub of which, in the Botanic Gardens of 

 Calcutta, bore a large crop of well-ripened fruits containing 

 fertile seeds, though only pistilliferous flowers could be detected 

 at the time of flowering. 



A case of similar character has come under my own notice ; 

 Zanthoxylum an Indian species of Zanthoxylum, the Z. alatum of Roxburgh, 



alatum. a dioecious plant, flowered in my father's garden at Clapham, 

 in the spring of 1862. As I had examined the flowers without 

 being able to detect stamens, and knew that no other plant of 

 the same genus grew near, I was not a little surprised to find 

 the ovaries swell and the berries attain their full development, 

 and still more so when, having carelessly placed three or four 

 seeds in a pot of earth, a seedling Zanthoxylum made its 

 appearance. 



In the spring of this year the shrub, now removed from the 

 conservatory to the open border, again flowered, and though 

 subjected to a much more careful scrutiny than previously I 

 failed to discover upon it any other than pistilliferous flowers. 

 Still the ovaries became enlarged, and the shrub again bears 

 mature berries, some of which I now exhibit to the Society. 



NOTE ON CASSIA MOSCHATA, IF., R t K., 

 1863. (Read before the Linnean Society, June 18, 1863.) 



Genus Cassia. THE genus Cassia as constituted by Linnaeus furnishes 



medicine, as is well known, two drugs of some importance, 



