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Dracocephalum (To the species described on p)
To the species described on p. 491, Vol. I., the following should now be added:
D. imberbe (beardless). fl., corolla lilac-blue, 1in. long, the lips nearly equal; bracts cuneate, cut, glabrous. l., radical ones long-petiolate, cauline ones few, shortly petiolate, all reniform, deeply crenate. Floriferous branches erect. h. 6in. Siberia, 1883. (R. G. 1080, f. 4-5.)