margined 



Median 



a margin of distinct character ; 

 margined, marginate ; marginici'- 

 dal (caedo, I cut), dehiscent by the 

 disjunction of the united margins 

 of the carpels, a form of septicidal 

 dehiscence ; Mar'go thallo'des, the 

 rim of the shield of a Lichen formed 

 by the thallus. 



marine', mari'nus (Lat., pertaining to 

 the sea), growing within the influ- 

 ence of the sea, or immersed in its 

 waters. 



marit'imus (Lat., marine), belonging 

 to the sea, or confined to the sea- 

 coast. 



Markings, used of various forms of 

 thickening on the cell-wall, as 

 annular, reticulated, spiral, etc. 



marmora'tus (Lat., marbled), having 

 veins of colour, as some marbles. 



Mar'row, used by Blair for the pith. 



marsu'pial (fjiapffviriov, a pouch), 

 geocalycal or pouch-fruited, used 

 of certain Hepaticae. 



mas, mas'culus, masculi'nus (Lat.), 

 male ; staminate, or with corre- 

 sponding structures. 



masked, personate. 



Mass, usually written MAST. 



Mas'sa (Lat., a lump), the mass or 

 substance of a body ; <~ semina'lis, 

 the flesh of some Fungi (Lindley) ; 

 ~ sporopn'ora ; ~ thecig'era, the 

 sporangia of some Fungi (Lindley) ; 

 Mas'ses, collections of anything in 

 unusual quantity, as pollen-masses. 



Mas'sula (Lat., a little lump), (1) 

 the hardened frothy mucilage 

 enclosing a group of microspores 

 in Heterosporous Filicineae ; (2) in 

 Phanerogams, a group of cohering 

 pollen - grains produced by one 

 primary mother-cell, as in Or- 

 chideae ; also styled Pollen-mass. 



Mast, the fruit of such trees as beech, 

 and other Cupuliferae. 



mast'igopod (/id<m, a whip ; TroCs, 

 TroSos, a foot), a stage in the 

 development of Myxogastres, the 

 contents of each spore escape as a 

 zoogonidium enclosing a nucleus 

 and contractile vesicle, with a 

 single cilium. 



153 



Mas'tic (fj.affTixT), gum), a resinous 

 exudation from Pistacia Lentiscus, 

 Linn. 



mas'toid (fj-aarbs, a breast; elSos, like), 

 nipple-like. 



Math, an old term for crop, as after- 

 math = second crop. 



Ma'trix (Lat. the womb), the body on 

 which a Fungus or Lichen grows, 

 ~ Pol'linis, the cell in which 

 pollen-grains are developed. 



Mattul'la or Mat'tula (matta, a mat), 

 the fibrous material surrounding 

 the petioles of palms. 



Matura'tion, Matura'tio (Lat.), ripen- 

 ing. 



matures'cent (maturescens, becom- 

 ing ripe), approaching maturity 

 (Crozier). 



matuti'nal, matutina'lis, matuti'nus 

 (Lat.), pertaining to the morning ; 

 plants flowering early, as Ipomoea 

 purpurea, Roth. 



meal'y, farinaceous. 



mean'driform (/xcuWfyos, a winding 

 river, forma, shape), having a 

 winding direction, as the anther- 

 cells of Cucurbitaceae. 



Mea'tus (Lat., a passing) intercel'lu- 

 laris, an intercellular passage ; ~ 

 pneumat'icus, an air-passage. 



Mechanomorph/osis (/j.->jx av ^> contriv- 

 ance, /jLoptptacTLS, shaping), a word 

 coined by Sachs to express me- 

 chanical changes in structure pro- 

 duced in the larger groups by 

 similar external causes, as leaf-like 

 organs in Algae and Phanerogams. 



Me'conine (/J.-/JKWI>, a poppy), an alka- 

 loid contained in opium ; Meco'nium, 

 botanicaily, the juice of Papaver 

 somniferum, Linn. 



me'dial, me'dian, mcdia'nus (Lat., in 

 the middle), belonging to the 

 middle ; Me'dian Line, the central 

 line of a bilateral organ, as the mid- 

 rib of a symmetric leaf ; ~ Plane, 

 when used of a flower, in the plane 

 of bract and axis ; ~ Wall, in 

 Archegoniates, the wall in a plane 

 at right angles to the basal wall 

 dividing the proembryo into lateral 

 halves. 



