10 Myxophyceae, Chroococcaceae, Ohroococcns. 



(Beck), ex ins. «Novaja Semlia» dicta oceani arctici (Wille) et 

 Groenlandia (Boergesen). 



8. Chroococcus montanus Hansg. Prodr. BuIl II, p. 160, Notarisia 

 1888, p. 400. — Strato amorpho, mucoso, obscure fusco-luteo 

 vel fusco-nigro; cellulis subsplioericis vel mutua pressione plus 

 minusve angulosis, ad 3-9 [x. crassis, singulis, binis, quaternis, 

 octonis vel pluribus in familias ad 30 [x. crassas dense aggregatis; 

 membranula tenui, more contentus luteola vel fusco-Iutea. 



Hdb. inter C a 1 o t h r i c e m p a r i e t i n a m (Naeg.) Thur. in saxis 

 madidis Bohemiae, Austrige, Dalmatise, Istrise (Hansgirg). 



III. Suhgen. Euchroococcus Hansg. Prodr. II, p. 161. — Contentus cellularum 

 caei-uleus, raro olivaceo-brunneus vel rufo-viridis, brunneo-violaceus, cupreo- 

 rufus. Membrana ssepe stratosa, hyalina vel lutea aut brunnea. 



9. Chroococcus Goetzei Schmidle Ueb. die tropische Afrik. Thermal- 9 

 alg. in Engl. Bot. Jahr. XXX, 1901, p. 242, Tab. V, f. 9. — 

 Familiis minutissimis, 10-60 [i. diam., solidis, superficio racemosa 

 plerumque multicellularibus; cellulis regularissime tetrastiche or- 

 dinatis secus tres series orthogonales arcte confertis, 3,5 ]i. diam., 

 divisione confecta diametro Dequilongis, ante divisionem fere ad 

 2-plo longioribus ; contentu hyalino luteo-virescenti; tegumentis 

 hyalinis, non mucosis, solidis, sBgre conspicuis. 



Hah. ad « Kisakisteppe » prope «Maji ya veta» Africjie centralis 

 in ligno aqua thermali (altit. 400 M.) superfuso (Goetze). 



10. Chroococcus thermophilus Wood in Americ. Journ. Sc. et Arts 10 

 1869, pag. 122, Fresh. of Un. St. 1872, pag. 12. — Cellulis 

 singulis aut bi-quaternatis et in familias consociatis, oblongis vel 

 subglobosis interdum angulosis, stratum haud mucosum efficientibus; 

 tegumento crassissimo, achroo, homogeneo; contentu viridi, subtiliter 

 granulato interdum homogeneo. 



Hab. ad « Benton Spring, Owen Co. » California^ (Parz). — 

 Celluhe singuke absque tegumento circ. 1,5 [j.. longa^, 1 [x. latae. 



11. Chroococcus poiyhedriformis Schmidle Ueber die tropische Afrik. n 

 Thermalalgenfl. in Engl. Bot. Jahrbiich. XXX, 1901, p. 241, t. IV, 

 fig. 1. — Cellulis singulis vel in familias sphsericas consociatis, 

 polyhedricis vel sphterico-polyhedricis, nunquam cubicis, 10-16 [i. 

 longis, 8-10 [JL. latis; tegumento solido, sufficienter crasso non 

 stratoso nec mucoso, plerumque luteo-rubro; contentu rerugineo- 

 viridi, evidenter granuloso. 



