Tropicals & Tender Perennials: Datura innoxia? stramonium? metel? meteloides?, 1 by

wrote:

his year I was very lucky and got a sample of a verified D. lanosa Bye ex. Barcl. from a friend in Germany. It is close to blooming now and I would say the leaves are different from all three species, but closest to D. inoxia. However I produced "lanosa-fruits" in all three other species as well as in D. stramonium, D. tatula and D. quercifolia. So the calyx covering the fruit can not be a reliable characteristic to ID D. lanosa.

Another thing I discovered was that the "inermis type of fruits is found in several species of the section Dutra. I have a specimen of D. meteloides (datu-72B) that produce almost spineless fruits, but it can be produced in D. inoxia and D. ferox as well.

Here is the fruit of D. tatula var. inermis. :)