melanos per meæ

pl. [Mod. Lat., from pref. melano-, and Gr. sperm a a seed.] Bot .: One of the three primary divisions or suborders of Alge, consisting of those which have dark olivaceous spores. It consists of plants of a light or dark olive color; the fronds compact and cellular, or formed of jointed filaments. The fruit is either external in patches, or in distinct cysts sunk in the frond. Impregnation by minute spermatozoids, produced in distinct antheridia. It contains the higher sea-weeds, Fucacee, Laminar i aceæ, . měl-an-ō-të-kite, s. [Pref. melano-, and Gr. tekein to melt.] Min .: A ma ive mineral, presenting cleavage in two directions. Hardne , 6.5; specific gravity, 5.73; luster, resinous; color, black to blackish-gray. Dichroic, presenting bottle-green and red-brown colors. Composition: Silica, 17.22; sesquioxide of iron. 22-81; protoxide of lead, 5842; protoxide of manganese, 0.57; magnesia, 0.33; potash, 0'18; soda, 0.33; represented by the formula Pb2 [Fe] Si2O9. Occurs at Longban, Wermland, Sweden; a ociated with hyalotekite, ganomalite, and other minerals.