. British fungi (Hymenomycetes). Fungi -- Great Britain. RADULUM. 51. Genus XXXVII.—Radulum (from the root-like appearance of Radulum. the processes of the hymenium). Fr. Elench. p. 148. Hymenium amphigenous, tubercular. Tubercles rude, irregu- larly shaped, commonly elongate, obtuse, waxy (except in R. aterrimum), irregularly arranged, distinct. Sporophores 4-spored, oc- curring not only on the tubercles, but also on the even parts of the hymenium. Growing on wood, resu- pinato-effused, often bursting through the bark. Fr. Hym. Eur. p. 622. * Denuded, very variable. ** Innate, removing the ba
. British fungi (Hymenomycetes). Fungi -- Great Britain. RADULUM. 51. Genus XXXVII.—Radulum (from the root-like appearance of Radulum. the processes of the hymenium). Fr. Elench. p. 148. Hymenium amphigenous, tubercular. Tubercles rude, irregu- larly shaped, commonly elongate, obtuse, waxy (except in R. aterrimum), irregularly arranged, distinct. Sporophores 4-spored, oc- curring not only on the tubercles, but also on the even parts of the hymenium. Growing on wood, resu- pinato-effused, often bursting through the bark. Fr. Hym. Eur. p. 622. * Denuded, very variable. ** Innate, removing the bark. * Denuded, very variable. 1. R. orbiculare Fr. — A. First season's growth, while then yellowish, orbicular, confluent, circumference flaxy. Tubercles elongated, some- what round, scattered or fasciculate. B. Second season's growth, vernal, flesh-colour, waxy-fleshy, smooth. Tubercles softer, shorter, as if rubbed away. Entirely changeable in form, but very distinct. The tubercles vary flexuous. On dead bark, birch, cherry, &c. Frequent. Oct. cent. (2-3 in.) broad, quite membranaceous or above 4 mm. (2 lin.) thick. Name—orbiculus, a small disc. Orbicular, round. Fr. Hym. Eur. p. 623. Berk. Out. p. 263. C. Hbk. 11. 874. S. Mycol. Scot. n. 826. Grev. t. 278. 2. R. quercinum Fr.—White then pallid, cent. (2-3 in.), somewhat round then broadly confluent, innate, crustaceous, becoming smooth. Tubercles round, stout, obtuse, scattered or fasciculate, irregularly shaped, floccoso-villous at the apex. Rude, changeable in form, often confounded with Hydnum squalinum and H. variecolor. On dead oak. Rare. Dec. Name—quercus, oak. Growing on oak. Fr. Hym. Eur. p. 623. Syst. Myc. i. /. 423. Berk. Out. p. 263. C. Hbk. n. 875. .b". Mycol. Scot. n. 827. —Ray Syn. t. \. f. 4. LXXVIII. Radtilum qicercinum. Natural Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration
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