3. Die graue, graubraune oder lederbraune Farbe der Samenschale, in Verbindung mit violett-rother Blüthe und röthlicher Mackel in den Blattachseln.
3. The grey, grey-brown or leather-brown colour of the seed coat in association with a violet-red flower and reddish taint in the axillas.
taint = Mackel Both Bateson and Sherwood have “spots”. Usually spelled Makel (though Mackel seems to have been common in botany), this term connotes an imperfection or blemish; see Jacob and Wilhelm Grimm, Deutsches Wörterbuch, online-edition, s.v. “makel” (1881).