monostylous 



Motor 



plied to the leaves of Mosses and 

 the thallus of Algae when com- 

 posed of a single layer of cells ; 

 monosty'lous, -lua ( + STYLUS) hav- 

 ing a single style. 



Mono'sy (^dj/wa-ts, deserted), Morren's 

 term for the abnormal isolation of 

 parts due to (a) ADESMY or (6) 

 DIALYSIS. 



monosymmet'rical (fj.6vos, one, <rv/j,- 

 /*T/3os, proportionate), used of a 

 flower which can be bisected in 

 one plane only, zygomorphic ; 

 monothalamlc, monothal'amous 

 (6d\afjios, 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 (6-rjKrj, a case), having 

 a single loculusor cell; monot'ocous, 

 -cus (r6Kos, child-birth), fruitirg 

 once only, as annuals and biennials, 

 mqpocarpic ; monotrop'ic (Tpoirr), a 

 turning), applied to bees which 

 visit only one species of flower ; 

 monotyplc (TI^TTOS, a type), having 

 only one exponent, as a genus with 

 but one species ; Monox'eny (eVoy, 

 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. 



Mor'ia J (/udpos, 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; Morozy'mase 

 (fujUTj, leaven), an assumed enzyme 

 in the mulberry, now believed to be 

 a mixture of diastase and zymase. 



Morphia, Morph'ine (Morpheus, the 

 god of sleep), the best known of 

 all the alkaloids contained in the 

 opium poppy. 



mor'phus (/iop^r/, shape), in Greek 

 compounds = appearance, as rhizo- 

 morphus, having the appearance of 

 a root ; Morphogen'esis (76/60-1$, be- 

 ginning), the production of morpho- 

 logical characters ; morphological, 

 relating to Morphology ; ~ Spe'cies, 

 Parmentier's term for such specific 

 forms as occur in fiosa, 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 (/u6p0w<m, a shaping), the 

 manner of development ; the order 

 in which organs farm from their 

 earliest to their final condition. 



mos'chate, moscha'tiia (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 whicli 

 vegetative portions have been de- 

 rived ; (2) the female or seed-bearing 

 parent of a hybrid; ~ Skein, a 

 continuous ribbon-like figure of 

 ehromatin in the early stages of 

 nuclear division, further divided 

 into close ~ , looped ~ , and loose ~ ; 

 ~ Star = MONASTER, a stage of 

 nuclear division. 



Moth'er-of-Vin'egar, 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 ( b'r. 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 



