INDEX AND PICTU RED-GLOSSARY 



Acanthosphaera 79 



Zachariasi 79 

 ACICULAR: needle-like in 



shape. Fig. 338 



Figure 338 



ACID BOG: having soft wa- 

 ter, low or lacking in dis- 

 solved minerals; pH below 

 neutral (7.0). 



Acrochaetium 1 27 



Actidesmium 59 

 Hookeri 59 



Actinastrum 58 

 gracillimum 58 

 Hantzschii 58 



Aegagropila 121 

 profunda 121 



AERIAL, algal habitat on 

 moist soil, rocks, trees, 

 etc.; involving a thin film 

 of water; subaerial, some- 

 what or sometimes aerial. 



AKINETE: a type of spore 

 formed by the transfor- 

 mation of a vegetative 

 cell into a thick-walled 

 resting cell, containing a 

 concentration of food ma- 

 terial. 



Alcohol 



food reserve 9, 1 1 

 preservative 16 



ALKALINE WATER: con- 

 taining a predominating 

 amount of hydroxyl-ions 

 as compared with hydro- 

 gen-ions; abundant in 

 electrolytes; hard water 

 lakes ordinarily are al- 

 kaline 



Alligator 13 



ALPINE: altitudes above 

 tree line (usually). 



AMOEBOID: like an amoe- 

 ba; creeping by extensions 

 of highly plastic proto- 

 plasm (pseudopodia). 



AMORPHOUS:, without defi- 

 nite shape; without regu- 

 lar form. 



Amphithrix 160 

 janthina 1 60 



Anabaena 158, 172, 173; 



also 6, 160, 162 



spiroides var. crassa 1 58 



subcylindrica 1 58 

 Anabaenopsis 171 



Elenkenii 171 

 ANASTOMOSE: to separate 



and come together again; 



a meshwork. Fig. 339 



Figure 339 



Angiosperms 116, 118 



ANISOGAMETE: a sex cell 

 which shows only slight 

 differentiation in respect 

 to maleness or female- 

 ness. 



Ankistrodesmus 54, 59, 62, 

 64, 69; also 14 

 Braunii 54 

 convolutus 54 

 falcatus 54 

 ■fractus 54 

 spiralis 54 



ANTAPICAL: the posterior 

 or rear pole or region of 

 an organism, or of a col- 

 ony of cells. 



ANTERIOR: the forward 

 end; toward the top. 



ANTHERIDIUM: a single 

 cell or a series of cells in 

 which male gametes are 

 produced; a multicellular 

 globular male reproductive 

 organ in the Characeae. 

 (See Fig. 159) 



ANTHEROZOID: male sex 

 cell or gamete. 



APEX: the summit; the ter- 

 minus; end of a projection 

 or of an incision. 



Aphanizomenon 172; also 

 181 

 ilos-aquae 172 



Aphanocapsa 182 

 elachista 1 82 

 Grevillei 1 82 



Aphanochaete 104, 113 

 polychaete 1 04 

 repens 1 04 



Aphanothece 185 

 Castagnei 185 



APICAL: the forward or an- 

 terior end; the top. 



Apiocystis 39 

 Brauniana 39 



APLANOSPORE: non-motile, 

 thick-walled spore formed 

 many within an unspecial- 

 ized vegetative cell; a 

 small resting spore. 



Araceae 66 



Arachnochloris 1 40 

 minor 1 40 



ARBUSCULAR: branched or 

 growing like a tree or 

 bush. 



ARCUATE: curved, bow- 

 shaped. Fig. 340 



Figure 340 



Arisaema 1 3 

 ARMORED: see thecate. 

 Arthrodesmus 76 



incus 76 

 Arthrospira 159 



Jenneri 1 59 

 Astasia 23 

 Asterionella 187; also 186 



formosa 187 

 Asterococcus 46, 



limneticus 46 



superbus 46 

 Asterocystis 1 29 



smaragdina 1 29 

 ATTENUATE: narrowing 



a point or becoming 



duced in diameter. 



341 



81 



to 



re- 

 Fig. 



Figure 341 



Audouinella 127 

 violacea 1 27 



Aulosira 173 

 laxa 173 



AUTOSPORES: spore - I i k e 

 bodies cut out of the con- 

 tents of a cell which are 

 small replicas of the par- 

 ent cell and which only 

 enlarge to become ma- 

 ture plants. 



AXIAL: along a median line 

 bisecting an object either 

 transversely or longitudi- 



199 



