From Asa Gray 3 February 1880
Herbarium of Harvard University,| Botanic Garden, Cambridge, Mass.
Feb. 3 1880.
My Dear Darwin
Your letter of the 19th ult, made me open my eyes. I am just off on a little journey, and have only a moment to say that Mr. Watson, Prof. Goodate, my artist who drew the figures & others can make affidavit to the facts. Two or three plants—on one, I think fully 2 inches of the seeming radicle was out of ground There are 3 or 4 species. The second lot I sent you was probably different from the first, or of 2 species.
If your plants were weak, even of the same species, it might account for their not lifting the weight of the seed.
About nomenclature, following the current nomenclature I called the hypocotyledonousQQQQ internode radicle—properly caudicle.
Please call all below it root, so as to avoid confusion, “Perennial” I should think so! The root is said to be sometimes of the size of a barrel. Those I have seen in California were from the size of a carrot to that of the biggest ruta-baga.; the tip near the surface of the ground,—but under it, where there was no wash, In haste | Ever Yours | Asa Gray
Germination of Megarrhiza. AG’s observations at variance with CD’s.
Please cite as
Darwin Correspondence Project, “Letter no. 12455,” accessed on 21 February 2017, http://www.darwinproject.ac.uk/DCP-LETT-12455