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Diafomaceae Ag. 
lUlncrcbcn. 
Endl. Gen. pl. Ordo 1. 
Corpuscula minima, lineis F^fis 
circumscripta, crystalliformia , the- 
cam siliceam (lorica) ostiolo unico (raro 
duobus) referentia solitaria vel in fila 
consociata, fragilia. 
Sociatim plantis aquarum dulcium ac 
maris insident, saepe muco immersa. 
Coloris plerumque bruneo- aut viride 
flavescentia plura hyalina. 
Sittr tcciX tiefc ©efcffopfe ned) immcr in tcn botanifdjcn ©djriftctt fief)Crt , tvevten ftc au dj £ier, 
glcid)fam aU ©vinnerung *>on tcn letjtcn ©tufcn tc$ St;imcidj$ Ijcv, in Slbbittungen tavgeflcltt. 
S^te njaf)rt;aft tf;ierifd)e Sflatur medjtc balt faum utcf;v bcjtveifeft tmtcn. Stn cinigcn fu^t inan 
cine mit trcbcntcn 23ctvcgungSevgancn ocrfefycnc SJiunt (?) ? Ocffnung. SJcmgctncif? I;abcn ftc ityve ©telfung 
bci tcn 2)?agcmf)ictd)cn ©fncnb. uniet tcn gcpanjcvtcn Snfuforien ol;nc Sannfanat. 
ttcbcc it)rc biSiucilcn ungcf)cuer fdjnefle unt 5aI;lrcid)J Gmtfietmng u. f. ro. ifl nid)t$ ©td)crc3 bcfannt. 
3D r SBcitrag $uc (5‘ntflc^ung gciuiffcc (Srtarten :c. unt in fo fcvn iyoffUe tavaud beflet;en , ift tveitet 
bcfyunteh in tcm ^auptwcvE : <5. ©. ©fivenbcrg, tic Snfufton^tf)icr^cn al$ solhommcnc prgani^# 
mcn. 23erlin 1832, unt antcun ©djriftcn tcffelbcn. 
2luc^ : Sorv tc ©t. SSinccnt, Sii^fd) unt JhUjing, ©orta, fyabcit fid) viet tamit bcfc^aftigt. 
©attungen: 
Subordo 1. Di atomeae — Trib. 1. Frustulieac Frustulia Ag. — Styllaria Ag. — Meridion Ag. — Lic- 
raophora Ag. — Gomphonema Ag. Achnanthes Bory. — Isthmia Ag. — Diatoma DC. — Odon- 
tella Ag. — Fragillaria Lyngb. — Lysigonium Lk. — Gncobyrsa Ag. — Trib. 2. Hydrolineae 
Encyoncma Klz. — Hydrolinum Lk. Hcmoeocladia Ag. — Gloeodictyon Ag. Hjdrurus Ag. 
Micromega Ag. 
Subordo 2. Desmidieae Trib. 3. M‘i cras t eri eae. — Micrasterias Ag. Scenedesmus Mey. Biddul- 
phia Gray. Trib. Echinelleae. Echinella Ach. Gloionema Ag. _ Desinidium Ag. 
©ef>r fletne, metjil »on gerabcn Stnicrt 
bcgrdnjte fnjjfriUarttge ^6rperd)cn, au3 cinem 
ficfelcrDigen , nur mit etner (fclfcn 2) Deff; 
mwg verfefjenen ©efjiiufe (^Panjev) bcffe? 
I;enb , weldje cinjeln ober ,fabcnfbrmig an? 
etnanDeraeretljt unb (cid)t $erbrcd)lid? ftnb. 
©tc Icbcn gcfcUtg an SBafferpflanjen be£ 
9Jteere3 unb geftlanbeS, fyduftg tn ©cfyleim 
etngemftet. 
©ie ftnb ntetft braun ober grtmltd) ? gelb, 
mele aud; ganj farbloS. 
