HOW TO KNOW THE FRESH-WATER ALGAE 



M 



Macrocystis 2 

 Magnolia 115 

 Malleochloris 67; also 100 



sessilis 67 

 Mallomonas 147 



acaroides 1 47 



caudata 1 47 



pseudocoronata 1 47 

 Mangrove 1 26 

 Mannitol 9 

 Mare's Eggs 173 

 Marssoniella 184 



elegans 184 

 MEDIAN INCISION: See in- 

 cision. 

 Melosira 186; also 187 



granulata 1 86 

 Meridion 187 



circular e 187 

 Mer/ngosphaera 1 40 



sp/nasa 1 40 

 Merismopedia 179; also 181 



convo/uta 179 



e/egans var. major 179 



glauca 179 

 Mesotaeniaceae 73 

 Mesotaen/um 44, 74 



Grey// 44 



macrococcum 44 

 METABOLIC: plastic, chang- 

 ing shape in motion as in 



many Euglena. 

 METABOLISM: referring to 



the physiological activities 



within a living cell. 

 Micractinium 57 



pusillum 57 



quadrisetum 57 

 Micrasterias 74, 89; also 6 



americana var. Boldtii 74 



ioliacea 74 



radiata 74 

 M/crochaete 170, 174; also 



173 



diplosiphon 1 70 



robusta 1 70 

 Microcoleus 1 64 



/acustr/s 1 64 



vaginatus 1 64 



MICROCRUSTACEAN: cope- 

 pods, water fleas, Clado- 

 cera, etc., microscopic 

 members of the Class 

 Crustacea. 



Microcystis 181, 182 

 aeruginosa 1 8 1 

 flos-aquae 1 8 1 



MICROFAUNA: microscopic 

 animals; see Microcrusta- 

 cea. 



MICRON: a unit of microsco- 

 pical measurement; one 

 1/1000 of a millimeter, 

 determined by using a 

 micrometer in the eye- 

 piece of the microscope 

 which has been calibrated 

 with a standard stage mi- 

 crometer. Expressed by 

 the symbol, 



Microspora 109; also 103, 

 131 



floccosa 1 09 

 Loefgrenii 1 09 

 Willeana 109 



Microthamnion 120 

 Kuetzingianum 1 20 

 strictissimum 1 20 



M/schococcus 1 30, 1 42 

 confervicola 1 30 



Monallantus 1 38 

 brevicylindrus 1 38 



MONAXIAL: with one axis; 

 with a single row of pri- 

 mary cells in a thallus. 



MONILIFORM: arranged like 

 a string if beads; bead- 

 like. Fig. 354 



Figure 354 



Monocilia 1 3 1 

 flavescens 1 3 1 

 viridis 1 3 1 



Monostroma 97; also 98 

 latissimum 97 



MOTHER CELL: the cell 

 which by mitosis or by 

 internal division gives rise 

 to other cells (usually 

 spores). 



Mougeotia 94, 96, 116; also 

 3 



elegantula 94 

 genuflexa 94 



Mougeotiopsis 96 

 calospora 96 



Mounting 6 



MULTIAXIAL: with more 

 than one axis or more 

 than one longitudinal 

 strand in a thallus. 



MULTINUCLEATE: with 

 many nuclei; see Coenocy- 

 tic. 



MULTISERIATE: cells ar- 

 ranged in more than one 

 row; a filament two or 

 more cells in diameter. 



Myrmecia 81 

 aquatica 81 



Myxophyceae 22 



N 



Nannochloris 78, 85 



bacillaris 78 

 Navicula 188; also" 187 

 Nephrocytium 50, 61 



Agardhianum 50 



ecdysiscepanum 50 



limneticum 50 



lunatum 50 



obesum 50 

 Netrium 73 



digitus 73 

 Nitella 21; also 12, 20, 97 



f/ex/7/s 21 



tenuissima 2 1 

 NODE: a position on a fila- 

 ment or thallus from 



which branches or lateral 



organs develop, usually 



enlarged or swollen; a 



joint in a thallus. 

 NODOSE, with regular swell- 

 ings or nodes about a 



longitudinal axis. 

 Nodularia 172 



spumigena 172 

 NODULE, a small swelling; 



a tubercle or button-like 



knob. 

 Nostoc 173; also 158, 185 



amplissimum 173 



commune 173 



linckia 173 



pruniforme 173 

 Nostochopsis 1 68 



lobatus 1 68 



OBLATE, slightly 

 sphere almost 

 Fig. 355 



flattened 

 globular. 



Figure 355 



OBLONG, a curved figure, 

 elongate with the ends 

 broadly rounded but more 

 sharply curved than the 

 lateral margins. Fig. 356 



Figure 356 



OBOVATE, an ovate figure, 

 broader at the anterior 

 end than at the posterior. 

 Fig. 357 



Figure 357 



Oedocladium 111; also 102 



Hazenii 1 1 1 

 Oedogoniaceae 102 

 Oedogonium 102; also 103, 



122 



crispum 1 02 



Westii 102 



205 



