Marbled 



OF BOTANICAL TERMS. Medullary Bays 



bria support the apparatus 

 ■which contains the anthero- 

 zoids. 



MARBLED, covered with faint 

 irregular wide stripes, or trav- 

 ersed by vein-like markings 

 like those which occur in cer- 

 tain kinds of marble; marmo- 

 rate. 



MARgES'£ENT, withering but 

 not falling off, as the corolla 

 of lobelia. 



MARGINAL VEIL, in Hymeno- 

 mycetes (mushrooms, etc.), a 

 membrane stretching from the 

 margin of the pileus to the sur- 

 face of the stipe in the young 

 sporophore and covering the 

 hymeuium; velum partiale. 



MAR'GiNATE, having a margin 

 differing in texture, form, or 

 color from the remainder of 

 the surface; margined; edged. 



MAR'GiNED, see Marginate. 



MARINE', growing in the sea or 

 upon the immediate sea-shore. 

 Compare Littoral and Mari- 

 time. 



MAR'ITlME, growing upon or 

 near the sea-shore. 



MAR'MORATE, see Marbled. 



MASKED, see Personate. 



MAs'StJLA (pi. Mas'sulae), one of 

 the lumps of mucilage derived 

 from the disorganized tapetum 

 of the microsporangium of 

 Azolla and enclosing a num- 

 ber of spores. Also applied 

 to an adherent group of pol- 

 len-grains derived from a sin- 

 gle mother-cell, as the ulti- 

 mate groups in a pollen-mass 

 in orchids, each containing 

 four grains. 



MAST, a popular name for the 

 fruit of the oak, chestnut, 

 beech, and some other forest 

 trees. 



MAs'TOID, large teat - shaped. 

 (Rare.) 



MA'TRlX, the place or body 

 upon or within which any- 

 thing grows. 



MATTtrL'LA, the fibrous material 

 at the base of the petioles of 

 palms; reticulum. 



MATtJRES'CENT, approaching 

 maturity. 



MATUtTNAL, pertaining to the 

 morning; expanding in the 

 morning, as the flowers of 

 morning-glory. 



MEAL'Y, see Farinaceous. 



MEDIAL, pertaining to the mid- 

 dle; median. 



ME'DlAN, see Medial. 



MEDIAN LINE, a line along the 

 centre or axis of a bilateral 

 organ, as along the midrib of 

 a leaf. 



ME'DiAN PLANE of a flower or 

 other lateral structure, the same 

 as antero-posterior plane, i.e., 

 a vertical plane which bisects 

 an organ into right and left 

 halves. The median plane of 

 a leaf would pass through the 

 midrib above and below. Com- 

 pare Lateral Plane. 



MEDUL'lA, pith; also central 

 tissue of some other kinds, as 

 of the thallus in lichens. 



MED'tJLLARY, pertaining to 

 medulla or pith. 



MED'tJLLARY RAYS, vertical 

 plates of cellular tissue in the 

 nbrovascular system of exo- 

 gens connecting the pitli and 

 the cortex. They form the 

 glistening spots called "silver 

 grain " which are seen on 

 the surface of wood which is 

 split radially. Only the rays 

 formed the first season extend 

 entirely to the pith. See Xy- 

 lem Ray and Phloem Ray. 



105 



