1 

 i 

 I 



> 



I 



656 Protococcoideae, PaImollace;e, Staurogenia. ; 



exs, n. 5;^ et 171, Cooke Brit. Freshw. Alg. p. 46, t. 18, f, 3, i 



Chlovopecliu7n reclangulare Naeg. rascr. — Cellulis oblotigo-ova- ' 



libus vel e mutua pressione subangulatis, 5-7 ::i 4-(5, 4-lG-Gl in ; 



familias tabulatas 13-55 a. latas coQsociatis, angulis obtuso-ro- : 



tundatis. \ 



Hab. in paludibus, fossis etc. pr. «Ziirich» Helvetiae (Naegeli), ' 



ad Friburgum et Berolinum in horto botanico (A. Braun), prope j 



((Neudamm» in Neomarciiia (Itzigsohn) pr. «Liegnitz et Tiilowitz» ! 



in Silesia (Kirchner), pr, (( Prag, Troja, Kunratic, Hostiwic, Hirsch- \ 



berg, Lomnic, Tabornetc. in Bohemia (Hansgirg), Hungaria (Ist- j 



vanffi), Belgio (De-Wildeman), Britannia (Argher, Cooke), Rossia ■ 



(Riabininb), Sibiria (Kozlowski). — ■ Adsunt specimina e Bohemia j 



cellulis 10 = 4-5, ex Hungaria cellulis 7 :;:; 4. Chlorophora lamina- i 



ria parietalia. \ 



2. Staurogenia quadrata (Morren) Kuetz. Sp. p. 194, Rabenh. FI. 1542 \ 

 Eur. Algar. III, p. 80, Crucigenia ciuaclrata IMorren in Ann. des -, 

 Sc. nat. 1830, t. XX, p. 404, t. XV, f. 1-5 Pediastrum quaclra- ] 

 ium Menegh. in Linnsea 1840, p. 212, n. 7, Micrasterias Cruci- • 

 genia Kuetz. Syn. Diat, p. 73. — Cellulis 4-16, exacte quadratis, j 

 angulis acutis vel obtusis. " | 



Hab. in stagnis Gallias (Morren) et Rossiae (Riabinine). \ 



3. Staurogenia heteracantha Nordst. in Wittr. et Nordst. Alg. aq. 1543 | 

 dulc. exsicc. n. 451 et in Botaniska Notiser 1882, pag. 55 cuin \ 

 icone. — Cellulis coenobii 4, rotundato- v, late ovato-obcordatis, an- J 

 gulis (externis) rotundatis spina ornatis, spinis inter se disparibus, 

 una (dextera, ut ita dicam) longa, altera (sinistra) circiter dimidio 

 breviore. 



Hab. in piscina horti ad Stromsberg prope Jonkoping Suecia) 

 in consortio Scenedesmi quadricaudce Propagatio fit macrogoni- 



diis, ((( agilibus?») 4 in cellula matricali ortis, in coenobium filiale l 



connexis; lat. cell. 4-8 a., long. cell. sine acul. 4-8 <j.., long. acul. £ 



raajor ad 14 a., minor ad 8 u., [ 



4. Staurogenia cruciata WoIIe Freshw. Alg. U. S. p. 171, f. 157, 1544 ,' 

 f. 9-11, Staurogenia crucifera Wolle in BuII. Torrey botanical | 

 Club 1877, f. VI, pag. 140. — Familiis 22-24 a. circ. latis, e cel- | 

 lulis 4 muco coalitis, 10 a, circ. diam., ffiquilateralibus, rhomboideis, ||| 

 lateribus incurvis, angulis rotundatis efformatis, quadrangularibus j 

 vel rhombicis; cellulis omnibus signo cruciformi ornatis, ) 



Hab. in stagno pr. ((Bethlehem» in Pennsylvania Araericae bo- | 



realis (Wolle), 



