monostylous 



Motor 



plied to the leaves of Alossea aud 

 the thallus of Algae when com- 

 posed of a single layer of cells ; 

 monostylous, -lus ( + STYLUS) hav- 

 ing a single style. 



Mono'sy (/j.6vwa-is, deserted), Morren's 

 term for the abnormal isolation of 

 parts due to (a) ADESMY or (b) 



i DIALYSIS. 



monosymmet'rical (n6vos, one, avfj.- 

 fjLfrpos, proportionate), used of a 

 flower which can be bisected in 

 one plane only, zygomorphic ; 

 monothalam'ic, monothal'amous 

 (tfciXa/uos, a bed-chamber), ( 1 ) applied 

 to apothecia consisting of a single 

 chamber ; (2) when galls consist of 

 only one interior chamber ; mono- 

 thal'mic, derived from a single 

 flower, as most fruits (Crozier) ; 

 monothe'cal (6r]K-rj, a case), having 

 a single loculus or cell; monot'ocous, 

 -cus (r6/cos, child-birth), fruiting 

 once only, as annuals and biennials, 

 monocarpic ; monotrop'ic (-rpoirri, a 

 turning), applied to bees which 

 visit only one species of flower ; 

 monotyp'ic (TVTTOS, a type), having 

 only one exponent, as a genus with 

 but one species ; Monox'eny (eVos, 

 a host), used of a parasite on one 

 host only, autoecious. 



Mon'ster, Monstrum (Lat., an un- 

 natural production), an abnormal- 

 ity ; Monstrosity, Monstro'sitas, 

 some conformation deviating from 

 the usual and natural structure; 

 adj. mons'trous. 



mon'tane, monta'nus (Lat.), pertain- 

 ing to mountains, as a plant which 

 grows on them. 



Morla (/J-opos, a share), parts of a 

 flower in general, as pentamorius, 

 all parts in fives. 



Mor'in (Morus, mulberry), a principle 

 derived from the yellow heart- 

 wood of fustic, Madura aurantiaca, 

 Nutt. ; the name is derived from 

 Morus, to which genus the plant 

 was formerly referred; Morozylnase 

 (v/AT), leaven), an assumed enzyme 

 in the mulberry, now believed to be 

 a mixture of diastase and zymase. 



Morpn'ia, Morph'ine (Morpheus, the 

 god of sleep), the best known of 

 all the alkaloids contained in the 

 opium poppy. 



mor'pnus (poptf)^, shape), in Greek 

 compounds = appearance, as rliizo- 

 morphus, having the appearance of 

 a root ; Morphogen'esis (7^e<rts, be- 

 ginning), the production of morpho- 

 logical characters ; morphological, 

 relating to Morphology ; ~ Spe'cies, 

 Parmentier's term for such specific 

 forms as occur in JRosa, which are 

 assumed to have departed from 

 their ancestral form in conse- 

 quence of varied environment ; 

 Morphol'ogy (\6yos, discourse), the 

 study of form and its develop- 

 ment. 



Morpho'sis (/xo/o^wo-ts, a shaping), the 

 manner of development ; the order 

 in which organs form from their 

 earliest to their final condition. 



mos'chate, moscha'tus (moschus, 

 musk), musky. 



Moth'er, used in the sense of 

 "parent"; ~ Cells, those which 

 divide to form other cells ;~ Plant, 



(1) the parent plant, from which 

 vegetative portions have been de- 

 rived ; (2) the female or seed-bearing 

 parent of a hybrid ; ~ Skein, a 

 continuous ribbon-like figure of 

 chromatin in the early stages of 

 nuclear division, further divided 

 into close ~ , looped ~ , and loose ~ ; 

 - Star = MONASTEK, a stage of 

 nuclear division. 



Moth'er-of-Vin'egur, the active agent 

 in acetous fermentation, Saccha- 

 romyces Mycoderma, Reess. 



mo'tile (motus, a moving), move- 

 able ; ~ Re'gion, (1) in growing 

 members the region of elongation ; 



(2) in mature members a distinct 

 organ, such as the pulvinus in 

 Mimosa pudica, Linn. 



Motillty (Kr. motilite), the power of 

 movement ; -~ of Pro'toplasm, a 

 suggested emendation of "contrac- 

 tility" of protoplasm. 



Mo'tor (Lat. , a mover) Zone, another 

 term for MOTILE REGION. 



163 



