Bot. [ad. Gr. θήκη.] = THECA 2.
1872. Tuckerman, N. Amer. Lichens, 30. [Spores] occurring in eights in the thekes. Ibid. (1881), I. Introd. 8. The hymenium, consisting of thekes (thecæ, the spore-bearing organs).
1900. in B. D. Jackson, Gloss. Bot. Terms.
