To Leonard Jenyns   10 August 1851

My dear Leonard,

Your wall plant is a poor specimen of Mercurialis annua. The Garden Amaryllis is Alstroemeria pulchella. The chief work of the sort you name is Endlicher Genera Plantarum (about 3 £) in one fat volume. There is also Endlicher's Euchiridium which gives the full account of orders etc. and the classification of the Generic names with additions to his larger work. It is in one vol. 8vo. about 16/- a very useful manual by which I arrange my Herbarium. There is also (and perhaps this would be the thing) Sprengels Linnaei Genera in one Vol. 8vo but its date is 1830. It is a very useful work (on the Linnean System) for finding out genera so far as it goes – price about 12/- or 16/-. I have only just time to day to answer your letter. Tomorrow I go to London, Kew, and St. Albans till Saturday. The account of the Travellers are very satisfacty. They are at Glasgow. I shall be glad to try the seeds of Centaurea nigra var. radiata for I could not satisfy myself it was distinct as C.B. now seems inclined to consider it. Kind regards to Mrs. L.J. and believe me

Ever affy yrs | J.S. Henslow