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XXVI. © Observations on the Genus Teesdalia; in a Letter to 
‚Robert Brown, Esq. F. R.S. Libr. L. Soc. By Sir James Edward 
Smit M.D. F. R. S. P. L.S. 
Read March 15, 1814. 
Dear Sir, 
I ossznvz with pleasure in the new edition of Mr. Aiton's Hor- 
tus Kewensis, which you ‚have so greatly enriched, that you have 
dedicated a genus to the memory of the late Mr. Robert Teesdale, . 
F.L.S., whose merits are well known to the Linnean Society. I 
became acquainted with this worthy man at Matlock in 1788. — 
Two botanists could not long be in that delightful spot without 
finding each other out; and our friendship continued, without 
interruption, till Mr. Teesdale's death, December 25, 1804. He 
was an accurate and experienced observer, liberal in communi- 
cating that knowledge, which it was the happiness of his life to 
possess. n ine 
Your TrrspArLra interests me also on another account. The 
Iberis nudicaulis of Linnzeus, on which it is founded, one of our 
Norfolk rarities, has always appeared to me very different in | 
habit from the rest of the genus, to which botanists have referred 
it. Nevertheless, the over-ruling character of the irregular corolla 
seemed of such authority, that it has hitherto been allowed, not 
only to confine this plant to a genus, with which it has scarcely 
any thing else in common ; but to separate it from another plant, 
to which it is most intimately allied. I allude to the Lepidium 
VOL. XI. ZR nudicaule 
