Bot. [mod. f. Gr. ἄδηλ-ος not manifest + ἀστὴρ, -έρα star.] A provisional name for a plant of which the flowers are unknown, so that it cannot be as yet referred to its proper genus.
1866. Lindley & Moore, Treas. Bot., 18. All Adelasters are therefore provisional names, to be abandoned as soon as the true names of the plants so called can be ascertained.
