13 
LU'CID, bright, clear, transparent. 
LU'MEN, the internal cavity or space 
in a cell or any tubular organ. 
LU'RID, sordid; dull; dingy; dirty 
brownish. 
LU'TEOUS, (a) egg-yellow; gold-yel¬ 
low. (b) like mud or clay. 
LUTES'CENT, yellowish. 
MACRO-, in composition, ‘large’ or 
‘long.’ 
MACROSCOP'IC, MEGASCOP'IC, visi¬ 
ble to the naked eye; visible without 
the aid of a powerful magnifying in¬ 
strument. 
MAC'ULATE, MAC'ULAR, MAC'U- 
LOSE, spotted. 
MAM'MIFORM, breast-shaped. 
MAR'GINAL VEIL, see ‘veil.’ 
MAR'GINATE, having a well defined 
border. 
MAST, the fruit of the oak and beech 
and other forest trees; acorns or nuts 
collectively. 
MA'TRIX, the substance upon or in 
which a fungus grows. 
ME'DIAL, applied to ring when situ¬ 
ated at about the middle of stipe. 
MEDUL'LA, pith; marrow; kernel; 
inner substance as distinguished from 
outer or cortical layer or layers. 
MED'ULLARY, composed of or pertain¬ 
ing to a medulla. 
MEGA-, prefix signifying ’great.’ 
MEMBRANA'CEOUS, MEM'BRANOUS, 
having the character or appearance of 
membrane; thin, rather soft, and pli¬ 
able. 
MERIS'MOID, applied to pileus which 
is sub-divided into many smaller pilei. 
MES'OPOD, plant having a central 
stipe. 
MICA'CEOUS, covered with glistening 
mica-like particles. 
MI'CRON, MI'KRON, microscopic unit 
of measure; 1-1000 of a millimeter; 
nearly .00004 inch; to convert inches to 
microns approximately, divide by .00004. 
MINT ATE, vermilion-colored; of a 
bright vivid red color. 
MI'TRATE, MIT'RIFORM, mitre¬ 
shaped; bonnet-shaped. 
MOLD, MOULD, (a) fine, soft earth; (b) 
a general term to describe certain fun¬ 
gus growths of a low type. 
MONIL'IFORM, like a string of beads. 
MONOCOTYLE'DON, endogen; pheno- 
gam having a single cotyledon, endo¬ 
genous growth, and mostly parallel- 
veined leaves; as the palm, Indian 
corn, etc. 
MONOPO'DIAL, having an axis of 
growth which continues to extend at 
the apex in the direction of previous 
growth, while lateral structures of the 
like kind are produced beneath it in 
acropetal succession. 
MONOS'TICHOUS, arranged in one 
row. 
MON'STER, MONSTROS'ITY, a plant 
or animal having any marked abnor¬ 
mal development in form. 
MON'STROUS, of unatural formation; 
deviating greatly from the natural 
form or structure; (has no reference to 
size). 
MORPHOLOGIC, MORPHOLOGICAL, 
of or pertaining to morphology. 
MORPHOL'OGY, the science of organic 
form; the science of outer form and 
internal structure. 
MOTHER-CELL, a cell from which an¬ 
other is derived. 
MOVABLE, applied to a ring which 
has separated from the stipe and can 
be moved up and down. 
MUCED'INOUS, having the character 
of or resembling mould or mildew. 
MU'CID, (a) musty, mouldy; (b) slimy. 
MUCILAG'INOUS, MU'COUS, slimy. 
MU'CRONATE, tipped with an abrupt 
short sharp point. 
MULTI-, in composition, ‘many.’ 
MULTIFID, many times divided. 
MULTIPARTITE, many parted. 
MULTISEP'TATE, divided by many 
partitions. 
MU'RICATE, rough with short hard 
points. 
MURIC'ULATE, finely muricate. 
MU'RIFORM, resembling the arrange¬ 
ment of the bricks in the walls of a 
house; said of spores having septa at 
right angles to each other. 
ML'RINE, MU'RINOUS, mouse-col¬ 
ored. 
MUSH'ROOM, see toadstool. 
MUTUALISM, symbiosis of two organ¬ 
isms living together and mutually 
helping and supporting each other. 
MYC, MYCET, MYCETO, MYCO, pre¬ 
fixes signifying ‘fungus.’ 
MYCE'LIAL, of or pertaining to myce¬ 
lium. 
MYCE'LIUM, vegetative portion of the 
thallus of fungi composed of one or 
more hyphae. 
MYCE'LIOID, like mycelium. 
MYC'ELOID, like a fungus. 
MYCETOL'OGY, mycology. 
MYCOLOG'ICAL, relating to fungi. 
MYCOL'OGIST, one who is versed in 
mycology. 
MYCOL'OGY, the science of fungi, their 
structure, classification, etc. 
MYCOPHAGIST, one who eats fungi. 
MYCOPHAGY, the eating of fungi. 
MYCORHI'ZA, a composite organ 
formed by the symbiosis of the rootlets 
of certain phenogams, especially of the 
cupuliferae and some other forest trees, 
and a fungus-mycelium which invests 
and penetrates them; it is believed 
that the fungus not only derives nour¬ 
ishment from the tree but that it as¬ 
sists the tree in absorbing nourishment 
from the soil; fungi comprised in the 
oomycetes, gasteromycetes, hymenomy- 
cetes and pyrenomycetes may be sym¬ 
bionts of a mycorhiza, but are capable 
of an independent existence. 
