Myxophycese, Heterocystidese, Mioroohsete. 483 



giques II, p. 129, t. XXX, A, Born. et Flah. Rev. III, p. 84, Hansg. 

 Prodr. II, p. 55, c. ic, Beck v. Mann. Spor. von Microch. tenera in 

 (Est. Bot. Zeitschr. 1898, n. 3, p. 1, t. IV. — Parvula, stellata; 

 filis 1 mm. longis, 6-7 \x. crassis, basi curvatis, leviter flexuosis; 

 vagina tenui, arcta, uniformi, hyalina; trichomatibus 5 (x. crassis, 

 serugineis ; articulis inferioribus diam. duplo longioribus, superiori- 

 bus cequalibus; heterocystis basihiribus oblongis, intercalaribus 

 cylindricis; sporis cylindraceis, seriatis. 



Hab. ad algas in stagnis Grallice australis apud Antipolim (Fla- 

 hault), in flumine Danubio ad Vindobonam (Beck, Stockmayer); 

 in Bohemia passim (Hansgirg, Gutwinski) et in Riesengebirge 



(J. SCHRCETER, ZaCHARIAS, 0. SCHRCEDER, LeMMERMANN) ; iu turfosis 



Borussiae (Schmidle), et in ditione Connecticut Amer. bor. (Set- 

 chell) et Alaska (Saunders), denique in insulis Azoricis (Bohlin). 

 — Var. mlnor Hansg. Prodr. II, pag. 55: filamentis vagina in- 

 clusa 7 [x. tantum diam, ; articulis 4-5 [i. crassis. — In stagno 

 prope Pragam Bohemiae (Hansgirg). — Var. major Moeb. Austral. 

 Suesswasseralg. II, pag. 343, tab. II, fig. 24-36: filis '/^-l mm. 

 longis, 12-14 |j.. crassis, in floccos parvulos ceteris algis superposi- 

 tos consociatis; articulis 8-10 ^. crassis, inferioribus diam. paulo 

 iongioribus, superioribus brevioribus. — « Dalby, Darling, Downs» 

 Queensland in scrobibus aqua repletis (Moebius). 



Microchgete calothrlcoides Hansg. Grundz. d. Algenfl. v. Nieder- 1138 

 oesterr. in Beih. z. Bot Centralbl. 1905, p. 494. — Filamentis 

 singulis vel caespitose conglomeratis, rarissime in stratum flocco- 

 sum sordide viridi-griseum consociatis, rectis vel curvatis, vaginis 

 achrois, arctis, stratosis, superficie plerumque plus minusve in- 

 crustatis, 10-16 (rarius usque ad 20) {i. latis; articulis deorsum 

 6-8 [1. crassis, '/., diam. brevioribus vel subquadratis, dissepi- 

 mentis evidenter constrictis, contentu subtiliter granulato, sursum 

 attenuatis, in apicem truncato-rotundatum nunquara in pilum ex- 

 euntibus dlaiii. ad 2-pIo longioribus; heterocystis pleruraque ba- 

 silaribus, ovato-sphgericis vel elliptico-elongatis, 6 [j.. latis, 8 [x. 

 longis. 



Hab. in stagnis horti «Prater» dicti prope Vindobonam Austrioe 

 (Hansgirg). 



Microchaete robusta Setch. et Gardn. Alg. of Northwest. America, 1139 

 in Univ. of Californ. Publicat. 1903, p. 194. — Filamentis aggre- 

 gatis, radiatim ordinatis, in herbis aquaticis insidentibus; filamentis 

 elongatis et perfecte cylindricis sed parcius deorsum incrassatis. 



