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Page 18 · DO #3494 · 324_Traverse_Bx4FF17_r
- Collection
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Alfred Traverse (1925–2015) papers
- Item/Folder
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William G. Chaloner, 1990–1999
- Digital Object
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DO #3494,
page 18
- Collection-level dates
- 1948–2001
Page transcription
Dear Judy and Rob,
I am directing this to Judy, hoping that she might fax it on to Rob, since I have only her fax number at my elbow, from the Santa Barbara Listing. I really also owe her a reply to her letter to me of May 3 (I blush to say), although I apologised in person, and happily talked it through in Santa Barbara in July.
Your joint poster on the workings of fossil plant nomenclature was really excellent, and I wish you were publishing that instead of your revision of the code! I agreed with 90% of it, though would fret somewhat over your interpretation of form-genus (see below!)
I should also add - though I said it to Judy in the summer - that I could not get away for it, although I attended the Congress. Jim Schopf scolded me roundly for this! However, my understanding of the removal was precisely that the nomenclatural treatment of an organ genus was simply the removal of an extant plant genus, and so did not need to be singled out in any particular way in a code of nomenclature. To me and many other palaeobotanists, Tagenostoma is still an organ genus, based only on a seed. We can make a family, Tagenostomaceae, for it and put other genera of seeds into that family, but as you don't need to be told, we do not know the rest of those plants. Tagenostoma is a genus for seeds; for me it is an organ-genus, based on seeds. In that respect it is entirely different from a living genus of gymnosperm plants which of course have seeds, but a lot more besides! You have heard it all before, I know.
Of course Meyen in his textbook (Fundamentals of Palaeobotany, incorporated by Act of