txylanthrax

[Prefix xyl ( o )-, and Greek anthrax =coal or charcoal.] Petrol.: Wood coal or charcoal, in distinction from mineral coal. xy-lär-I-a, subst. [Fem. of Mod. Lat. xylarius growing in woods, from Gr. xylon =wood.] Bot.: A genus of Sphæriacei. Branched, horny, or fleshy fungals, often with clavate lobes, whitish and mealy when young, afterward brown or black. Perithecia horny, usually immersed all over the branches; center black, composed of asci, with eight usually uniseptate spores. The largest species are tropical, but several are found in Europe on rotten wood, stumps of trees, . The most common is Xylaria hypoxylon . xy-lěm, s. [Gr. xyle =timber.] Bot.: Naegli's name for one or two groups into which the permanent ti ues of a fibro-vascular bundle can be divided. It is composed of paren chymatous cells, wood fibers, vascular cells, and true ve els, in which the walls of the cells generally become ligneous. From it the wood is developed. xylem-parenchyma, s. Bot.: The medullary rays. ( Thomé.) xy-lēne, s. [Gr. xylon =wood; suff.-ene.] xylite methyl atoms; viz., ortho xylene, prepared synthetically by the action of sodium on a mixture of ortho bromo toluene and methylic iodide, boils at140-141°; meta xylene, obtained by distilling xylic or mesitylenic acid with lime, boils at 137; and para xylene, prepared by the action of sodium on bromo toluene and methylic iodide, boils at 136-137°. On pa ing xylene through a red-hot tube, it is resolved into benzene, toluene, and other hydrocarbons. xylene-diamine, s. [XYLYLENE-DIAMINE.] xylene-sulph och lor ide, s. A yellow oil obtained by triturating xylene-sulphate of Chem.: C8HgSC1O2=C6H3(CH3)2 sodium with phosphorus pent a chloride, warming the mixture, and pouring the product into water. xylene-sulphuric acid, s. xy-len-ÿl, s. [XYLYL.] xy-lěn-l-a-mine, subst. [English xylenyl, and -amine.] [XYLIDINE.]