With Supplementary Remarks on Naturally Produced Hybrids in the Genus Verbascum.
"The Life and Letters of Charles Darwin, Volume II (of II)" by Charles Darwin
See in the "Origin" the brief abstract of Gartner on Verbascum and Zea.
"More Letters of Charles Darwin" by Charles Darwin
Secondly: Have you any white and yellow varieties of Verbascum which you could give me, or propagate for me, or LEND me for a year?
"More Letters of Charles Darwin Volume II" by Charles Darwin
My notes are explicit on the subject of some of them, taken on Verbascum sinuatum.
"More Hunting Wasps" by J. Henri Fabre
The fields have Crucifera Lamium and Verbascum, a late biennial species, Caule simplici, Hemiphragma.
"Journals of Travels in Assam, Burma, Bhootan, Afghanistan and TheNeighbouring Countries" by William Griffith
With supplementary remarks on naturally-produced hybrids in the genus Verbascum.
"Life of Charles Darwin" by G. T. (George Thomas) Bettany
Verbascum, made by him in the Botanic Gardens of Edinburgh.
"The Variation of Animals and Plants Under Domestication, Volume II (of 2)" by Charles Darwin