| Disgrifiad | i. 22 October 1843 - Dresden - Comments on Linden's plants from Caracas. Brazilian plants of Clausen and Gardner. Stevenson's from New Zealand. Publications. (German.). (Reply by W.P. mentions Stevenson and Buckley's plants.).
ii. 3 November 1843 - Dresden - Gardner's Brazilian plants. (German.). (W.P. note explains position regarding Gardner's plants, Linden's Mexican plants, Funcke's (sic) plants and first distribution of Stevenson's N.Z. plants in 4-6 weeks.).
iii. 21 February 1844 - Dresden - Linden, Gardner and Clausen plants. Drummond's mosses of N. America: Publications. (German.).
iv. 28 May 1844 - Dresden - Linden's plants and Chinese plants. (German.).
v. 9 January 1846 - Dresden - Acknowledges Chapman's Florida plants. Hooker and Greville's Ferns. Stephenson's New South Wales plants. (German.) (Note by W.P. Stephenson's plants in c. 2 weeks. Ferns purchased at Graham's, offers Drummond's. Quotes prices.).
vi. 7 November 1846 - Dresden - Acknowledges items sent. Does not want ferns of Jamaica, Mauritius, etc. or Drummond's except perhaps Texas. (German.).
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