INDEX. 



177 



COSMAKIUM Nymannianura.Grun., 87 



" obsoletum, Reinsch, . 70 



" ochthodes, Nord, . . 84 



" octogonutu, Delp., . 71 



" oculiferum, Lagh, . . 76 



" ornatum, Kalfs, . . 89 



Var. protractum,Wolle, 90 



" orbiculatum, Ralfs, . 85 



" orthosticum, Lund., 86 



" ovale, Ralfs, . . 62 



" pachydermum. 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.granulatum, Wolle, 91 



" Pseudobroomei, Wolle, 93 

 " pseudonitidulum, Nord., . 72A 



" Pseudopectinoides, Wolle, 96 



" pseudogranatum, Nord., . 64 

 " pseudopyraini<latum,Lund., 75 

 " pseudotaxichondrum,Nord.,77 



" pulcherrimum, Nord., . 97 



'' punctulatum, Breb., . 80 



" pyramidatum, Breb., . 74 



Var. stenonotum, . 74 



" pycnochondrum, Nord., . 97 



" quadrature, Ralfs, . 63 



" quadrifarium, Lund., . 94 



" Quasillus, Nord, . 92 



" Quimbyii, Wood, . . 66 



'' quinarium, Lund., . 78 



" radiosurn, Wolle, . . 97 



Ralfsii, Breb., . . 75 



" Regnesi, Zeinsch, . . 70 



reniforme, Ralfs, . 84 



" Reinschii, Arch., . . 73 



" retusum, Perty, . . 87 



" rhombusoides, Wolle, . 66 



" scenedesnms, Delp., . 63 



" Sdiliephackeanum.Grun., 89 



" Seelyanum, Wolle, . 80 



" sejuiictuin, Wolle, . . G8 

 12' 



COSMABIUM sendtnerianum, . 72A 



" sexangulare, Lund., . 69 



" sinuosum, Lund., . 70 



" Smolandicum, Lund., . 72 



" speciosum, Lund., . 95 



" sphalerostichum, Nord., . 76 



" Sportella, Breb., . . 90 



" stenonotum, Nord., . . 74 



" subcrenatum, Hantzsch, 91 



" subcruciforme, Lagh., . 94 



" sublobatum, Arch., . 87 



" suborbiculare, Wood, . 85 



" supraspeciosum, Wolle, 95 



" taxichondrum, Lund., . 77 



Var. bidentatum,Lagh., 77 

 " tetrophthalmuoi (Kg.), 



Breb., .... 82 

 " tinctum, Ralfs, . ' 67 



" tithophorurn, Nord., . 88 



" trachypleurum, Lund., 79 



" triplicatum, Wolle, . . 79 



" tumidum, Lund., . 67 



" Turpinii, Breb., . . 87 



" undulatum. Corda, . 72 



Var. crenulatura, . . 73 



" variolatum, Lund., . 68 



" venustum, Rab., . . 73 



" Wolleanum, Lagh., . 64 



Var. granuliferum, Lagh. S4 



Crystals in Desmids, . . . 

 DESMIDIE^E How generated and 



multiplied, . . . .17 



DESMIDIUM, Ag. Description of, . 25 



" aptogonium, Breb., . 27 



" Baileyii, Ralfs, . . 27 



" cylindricum, Grev., . 25 



" . diagonum, Delp., . .171 



" longatum, Wolle, . 26 



" qiiadrangulatum, Kg., . 27 



'' quadratum, Nord,, . 26 



" Swartzii, Ag., . . .26 



DESMIUS Characteristics of, .16 

 How multiplied, . . 17 



Regeneration of, . . .18 

 Of the United States, . 21 



Voluntary movements of, . 16 

 Where found, ... 15 



DIDYMOFBIUM, Kg., . . .23 



