Ophiodon (ofiodon)

[NL., 4124 the leaves are not circinate in vernation, and the sporangia, which are endogenous in their origin and without annulus, are never borne on the under side of the green frond. They differ further from the true ferns by the absence or imperfect formation of bundle-sheaths and sclerenchyma in the stems and leaves. The Ophioglo aceæ embrace 3 genera, Ophioglo um, Helm in tho stachys, and Botrychium. Ophioglo eæ (of"i-o-glos' of"i-o-glos'ē-ē), n. pl. [NL., plants, typical of the group Ophioglo aceӕ. The fronds are usually from a fleshy, sometimes bulbous root, and straight or inclined in vernation; the sporangia, which are endogenous in ori gin, cohere in one or more simple spikes, are naked, not reticulated, and destitute of a ring, and open by a transverse slit into two valves. There are 10 species, 4 of which are found in North America, O. vulgatum, the adder's-tongue, being the most abundant. ophiography (of-i-og'rafi), n. [ n. [ ophiolatr -y, after idolater .] One who practises ophiolatry; a ser pent-worshiper. ophiolatrous (of-i-ol'atrus), a. [As ophiolatr -y + -ous.] Worshiping serpents; pertaining to ophi olatry. IMG:content-1749.png:[ocr errors][merged small] Fertile Plant of Adder's tongue (Ophioglo um vul gatum ), a, the upper part of the fertile frond, showing the ile frond, showing the nervation.