288 



4. Genera chronologice enumerata. 



1774 ("Corpicetti a baeello" Corti). 

 17S1 ("Der lialbe MoniT Eiclliorn). 

 1784 (Vibrio spec. Miiller). 

 102 (''Conferve ineilite" Girod- 



CJinntr.). 

 1810 ECHINELLA ^f//r. 



1813 (Arthrodia Rajiii.t). 



1814 (TJlva spec. ,S'w//// . 



1815 (Diatoma spec. Ay.:. 



1816 MDLLERINA Lechrc. 



1817 CLOSTERIUM XiUacli. 

 1822 (Achnanthes spec. Bory). 



LUNDLINA J>Vri/. 

 1S23 (Bacillaria spec, tichrank). 

 HELIERELLA Bury. 

 HETEROCARPELLA j;<.yi/. 



1824 DESMIDIUM 4//. 



(Pal me- 11 a sp. A i/.). 

 MTXONEMA Aij.'i 

 MICRASTERIAS A<j. 

 (Cocuocliloris spec. Sj>i't : ii;/i I . 



1825 TESSARTHONIA 

 DRSINELLA 7>(( 



1S2H STAURASTRUM 

 1830 (Cymbella sp. Ay.). 

 1832 EUASTRUM AV/coi?.. 



1834 XANTHIDIUM Ehrenl. 

 COLPOPELTA C'orda. 

 COSMARIUM Corda. 

 PLEUROSICYOS Corchi. 

 SPH^ROZOSMA fordo. 

 (Stauridium sp. Corda?). 

 (Prnstulia sp. Kiit:. . 

 (Scenedesmus sp. 7v/;.i. 



1835 BINATELLA 7^-rt. 



1836 PENTASTERIAS 



1841 



IMS 

 1*44 



1M45 



1848 

 1849 



TESSARARTHRA 

 CALODESMIUM H7ier. 

 APTOGONUM Eli rent. 

 ARTHRODESMUS Elirenli. 

 ODONTELLA Elirei/l. 

 CYLINDROCYSTIS Menegh. 

 MESOTREMA Cocrf. 

 STREPHOCYSTIS Corda. 

 (Isthmia sp. Menegh.). 

 EUTOMIA Hurr. 

 GYMNOZYGA Elirciib. 

 HYALOTHECA 

 POLYSOLENIA 

 ZYGOXANTHIUM Elirenl. 

 DIDYMOPRIUM Af. 

 PALMOGLOEA A'///.:. 

 DOCIDIUM -ffe. 

 I'ENIUM Breb. 

 TETMEMORUS J^//s. 

 BAMBUSINA A7i/.:. 

 GL^EOPRIUM 7>V-/7.Y?. 

 GONIOCYSTIS Hii.su. 

 HOLOCYSTIS 7/.. 

 ISTHMOSIRA Jv7V^. 

 PHYCASTRUM Kfitz. 

 PITISCUS Kiits. 

 SPIROT.&NIA Brib. 

 STAUROCERAS Kiit a. 

 TRICHODICTYON A7-/:. 

 ENTOSPIRA A"/i^-. 

 DIDYMOCLADON K.ilfs. 

 GYMNODESMUS '//TC/.S. 

 ASTEROXANTHIUM Nag. 

 DYSPHINCTIUM Nag. 

 MESOT^INIUM 2S7,//. 

 PLEUROT^INIUM JV 



SPONDYLOSIUM Bri-b. 

 STEPHANOXANTHIUM Kutz. 



1850 ENDOSPIRA Brtb. 



1851 TRIPLOCERAS Bailey. 

 SPHJEROPRIUM Hob. 



1856 COSMOCLADIUM Kreb. 



GONATOZYGON Ih Bury. 

 L858 GENICULARIA DC Bury. 



LEPTOCYSTINEMA Arch. 

 1859 TETRACHASTRUM Dixon. 

 IM:I> LEURONEMA TTVtf. 



ONYCHONEMA Wull. 



STREPTONEMA Wull. 

 I8i;2 y DIPLOSPH-ffiRIUM Cramer. 

 l-*'i7 DIDYMIDIUM Keinsch. 

 I*'*' ARTHRORABDIUM E/imtb. 



PALMOGLOEITES Goppert. 

 1871 ANCYLONEMA i'er^/r. 

 1*73 MIXOT^INIUM Di-lyoiite. 



XANTHIDIASTRUM Delponte. 

 1875 SCHIZOSPORA litinscl. 

 1*77 PHYMATODOCIS A r orrf/. 

 1878 CALOCYLINDRUS (A'<r0.) A'zVc/m. 



1884 COSMARIDIUM n/. 



1885 LEPTOZOSMA 7c. 



1SS7 PLEUROT-ffiNIOPSIS (Lund.)La- 



ffcrli. 



1*8.8 ASTEROCOSMIUM Atoffrw. 

 1S89 DOCIDIOPSIS 7f</c/6. 



NOTOCOSMARIUM Kacib. 



1890 HOLACANTHUM (iMjirf.) TFiVie. 

 PLEURENTERIUM (Lund.) Wille. 

 SCHIZACANTHUM (Lund.) Wille. 



1891 (Gyges spec. 0. 

 1896 ROYA West. 



