pachypteris

[Pref. pachy-, and Greek pteris a fern.] Palæobot .: A genus of Ferns of Jura ic age. păch-ý-reiş-mą, s . [Pref. pachy- , and Greek ereisma a prop, a support.] Palœont .: A genus of Cyprinide (q. v.), peculiar to the Great Oolite. Shell, very thick and ponderous, cordate; umbones, large, sub-spiral. păch-ý-rhiz-o-dus, s . [Pref. pachy- , Gr. rhiza =a root, and odous a tooth.] Palæont .: A Cretaceous genus of physostomous fishes, probably allied to the Esocide (Pikes). IMG:content-0527.png:[blocks in formation] rooted: pref. pachy-, and Gr. rhiza a root.] Bot.: A genus of typical Phaseoleæ, consisting of twining plants with violet-blue papilionaceous flowers. It is a native of the East and West Indies, Feejee, . It is cultivated in India for its tuber. ous roots, six or eight feet long, and as thick as a man's thigh. They are eaten, especially in time of scarcity, either raw or boiled. In the latter case they resemble turnips. pa-chys-tich-ous, a. [Pref. pachy-, and Gr. stichos a row, an order.] Bot . ( of cells ): Thick-sided. păch-y-tei-chiş'-ma, s. [Pref. pachy-, and Gr. teichisma a fortification; teichos =a wall.] Palæont.: A genus of Hexactinellid Sponges, family Ventriculi tide, from the Upper Jura ic series.