hymenial

[Mod. Lat. hymen i (um); Eng. suff. al.] Pertaining to or connected with the botanical hymen (q. v.). hymenial-layer, s. Hymen .] [HYMEN.] Bot.: A layer in lichens, composed of parallel hyp he or paraphyses, and of the asci. ( Thomé .) hy-me-ni-ŭm, s. [Gr. hymen i on, dim in. from Bot . The fructifying surface in fungi, in which the spores are naked; the parts in which the sporules immediately lie. The term is used of Agaric us and similar genera, and more loosely of Helvella and Peziza. Distinguished from a nucleus (q. v.). hy-měn-o-, pref . [Gr. hymen a skin, a mem brane.] (See etym.)