Myxophycefe. Stigonemacefe, Nosfcochopsis. 59B 



cava; trichomatibus a basi ramosis, mm. 1 longis, laxis, elongatis, 

 flexuosis, 4-9 [x. latis, hete ?erugineis, ssepe ad geniciiia contractis; 

 ramulis unilateralibus fastigiatis, basi cylindricis, sursum torulo- 

 sis, subclaviformibus; cellulis diametro usque 2-plo longioribus; 

 heterocystis lateralibus exsertis vel intercalarilms. 



Hab. ad plantas submersas aut libere natans in stagnis et fiu- 

 viis Bohemi9B (HANsaiRGJ, ins. .^zoricarum (Bohlin), Africae cen- 

 tralis (Welv^itsch), Americie f(jederat;:e (Wood, Faxon, Setchell) 

 et australis in Brasilia (Puiggari, Lofgren, Glaziou, Nordstedt), 

 nec iion in insula Suinatra (Klusi, Askenasy), Australia (Moe- 

 Bius), ins. Reunion (Jadin) et ins. Ceylona (West). — Mastigo- 

 cladus Bursa Dickie On the Alga? of Mauritius in Journ. Linn. 

 Soc. Rot. 1873, pag. 201, affinitatem pr.iebet cura Nostochopside 

 — Var. stagnalis Hansg. in Sitz. K. buhm. Ges. d. Wissensch. 

 1889, p. 142, Prodr. II, p. 29, c. ic: strato compacto, rotundato 

 vel forma irregulari, plerumque 2-5 mm. lato; filamentis prima- 

 riis valde ramosis, sa?pe radiantibus, ramulis singulis vel 2-3 ag- 

 gregatis; cellulis vegetativis (in fil. primariis) compresso-globosis 

 vel dolioliformibus, ramis oblongo-ellipticis, ut plurimum 4-6 [i. 

 hitis, ad duplo diametro longioribus, ssepe submoniliformiter dispo- 

 sitis (in ramulis plerumque 2,5-4 [j.. latis, diametro 2-plo lon- 

 gioribus; heterocystis ellipticis vel oblongo-cylindricis, in ramulis 

 plerumque 15-18 \u longis; ceterum ut in forma typica. — In 

 stagno prope « Celakowic a. E. » in Bohemia, socia Cylindrocapsa 

 geminella Wolle. 

 2. Nostochopsis Hansgirgi Schmidle Hansgirg's Ind. Alg. in Allg. bot. i3B8 

 Zeitschr. 1900, p. 77, Hedwigia 1900, p. 178, c. ic, Nostochopsis 

 rupestris Schmidle... — Strato parvo, brunneo-luteolo, solido, ge- 

 latinoso, sph.ieroidali vel expanso ; filis ])arallelis, plerumque rectis, 

 non vel parcissime ramosis, basi 1,6 [a. diam , cylindricis, cum 

 parietibus tegumentorum inconspicuis, apice incrassatis ad 2-3 \t.. 

 diam., cellulis leviter torulosis, elliptico-oblongis vel cylindricis, 

 apicibus rotundatis, 5-6 \x. longis, contentu viridi luteolo, pallide 

 colorato; vaginis hyalinis, demum diffluentibus vel luteolis, stepe 

 peripherice rugosis; heterocystis gregariis, intercalaribus vel late- 

 ralibus, primis longe-ellipticis vel plerumque utraque parte acu- 

 minatis, 5 [j.. diam. et circ. 8-10 [x. longis, extremitatibus apiculis 

 incrassatis, hyalinis, ceteris globosis vel semisphsericis directe in- 

 sertis vel in apice ramuli 2-5-ceIIularis brevis saepe binis insi- 

 dentibus. 



