‖ barbula
(ˈbɑːbjʊlə)
[L., dim. barba beard.]
1. A small beard; see quot. ? Obs.
| 1688 Holme Armory ii. xvii. 392 The Barbula or pick-a-divant, or the little tuft of hair just under the middle of the lower Lip. |
2. ‘The inner row of fringes or teeth in the peristome of such mosses as Tortula.’ Treas. Bot. 1866.