203 



\ 



spiciantnr, ana qnaqne interaneo figurato ornata; demnm 

 Diatomatam more secediiat, hasqne simnl e latere capnlari in 



r 



speciebas noumillis detexit cU Brdbisson. 



Characteres turn e fignra cellularnm, qnnm e forma in- 

 terauei ad species rite distingnendas abnnde erai possniiL 

 Figoram reroy nt forma amassim definiator, e dorao el e la-- 

 tere inspicere oportet, hoc in fills contiuuis, illo in sectis 

 soluUdve obserTato; iuleranea antem in posfremis tanfam pa- 

 lam fiiinf. Species a cl. Ehrenherg hutc generi adscriptas 

 cellulis, quidem geminatis sed nnmqiiam in seriem cateni- 

 formem conjnnctis, niilloquc tabo mucoso iuclusis,' constito- 

 (as, affinitatxs causa Staurastris amandavi* 



^ C^Uults € dorso triangularibusm 



1. Desmidium Sivartzii ^g^j cellulis e latere qnadrangula- 

 ribus, obtase emarginatis, e dorso (riaugnlaribas lateribns 

 depressis, apicibns rotundatis; interaneis friradiatisj radiis 

 bifidis, diraricatis* — jigm Sjst, /p. 9, Consp. cril« Diat. 



r 



p. 56 , Br^b. ! Alg. Fal. p. 63, PI. II. V , Grev. Scot, 

 crypl. FI. T. V. n. 292. — Diatoma Swartzii Ag, Disp. 

 Alg. Srec. (1811), Sv, Bot. 491 f. 1.2. 3, Lynhg, Tcu- 

 tam, p. 177. T. 61. A. 



(V. 8.) 



2. Desmidium hijidum Ehr,, cellalis e latere qnadranga- 

 laribas, acote emar^natis, e dorso triangulariboa, later!- 

 bns concaris, apicibns fissis acutis ; interaneis ,( cylindri- 

 cis?). — Ehr, Abh. d. Beri. Ak. (1832) p. 292, Infnsor. 

 p. 141. T. X. f. XI. — D. didyronm Corda Aim. de Carlsb. 

 1835. p. 123. PI. IV. f. 43. 44, — D. bidens Ehr, I. c. 

 (in icone pro crrore), 



3. Desmidium aptogonum Brib,, cellnlis e latere qnadran- 

 gnlaribns, crenolatis, e dorso triangniarlbn?, laleribus 

 convexis, aognlis rotundatis iathmum triplicem, breTissimom 



