INDEX. 



177 



COSMAKICM Nymannianum.Grun., 87 



" obsoletiim, Eeinsch, . 70 



" ochthodes, Nord, . . 84 



" octogonum, Delp., . 71 



" oculiferum, Lagh, 76 



" ornatum, Ealfs, . . 89 



Var.protractum,Wolle, 90 



orbiculatum, Ealfs, . 85 



" orthosticum, Lund., 86 



" ovale, Ralfs, . . 62 



" pachydermiim, Lund., . 75 



" Pardalis, Cohn, . 83 



" parvulum, Breb., . 64 



'• Pectinoides, Wolle, 96 



" perforatum, Lund., . . 65 



" Phaseolus, Breb., 89 



" polygonum, Naeg., . . 71 



" polymazum, Nord., . 76 



" polymorphum, Nord., 80 



" Portianum, Arch., . 84 



" protractum(Naeg.),Arch., 90 



" protuberans, Lund., . 91 



Var.granulatiim,'Wolle, 91 



" Pseudobroomei, Wolle, 93 



" pseudonitidulum, Nord., . 72a 



" Pseudopectinoides, Wolle, 96 



" pseudogranatum, Nord., , 64 



" pseudopyramidatum,Lund., 75 



" pseudotaxichondrum,Nord.,77 



" pulcherrimum, Nord., . 97 



'' punctulatum, Breb., 80 



" pyramidatum, Breb., , 74 



Var. stenonotum, 74 



" pycnochondrum, Nord., . 97 



" quadratum, Ealfs, . 63 



" quadrifarium, Lund., . 94 



■' Quasillus, Nord, . 92 



" Quimbyii, Wood, 66 



' . quinarlum, Lund., 78 



" radiosum, Wolle, . . 97 



" Ealfsii, Breb., . . 75 



" Eegnesi, Zeinsch, . . 70 



" reniforme, Ealfs, . 84 



Eeinsohii, Arch., . . 73 



" retusum, Perty, . 87 



" rhombusoides, Wolle, . 66 



" scenedesmus, Delp., . 63 



" Schliephackeanum.Grun., 89 



" Seelyanum, Wolle, . 80 



" sejunctum, Wolle, . . 68 

 12 



Crystals in Desmids, . . — 

 DESMiDiBiE — How generated and 



multiplied, . . .17 



Desmidium, Ag. — Description of, . 25 



" aptogonium, Breb., 27 



" Baileyii, Ealfs, . . 27 



" cylindricum, Grev., 25 



" diagonum, Delp., . 171 



" longatum, Wolle, . 26 



" quadraugulatum, Kg., 27 



" quadratum, Nord,, . 26 



" Swartzii, Ag., 26 



Desmids — Characteristics of, .16 



How multiplied, . . 17 



Regeneration of, . 18 



Of the United States, 21 



Voluntary movements of, 16 



Where found, . . 15 



DlDYMOPBIUM, Kg., . . .23 



