Conjugat£e, Desraidiacese, Cosmariura. 989 



Saxonife (Rabenhorst), « Dretschen » (M. Rostock), prope Lipsiam 

 (Bulniieim), locis variis Suecia) (Lundell), Norvegise (Wille, 

 Nordstedt), Austria) (Grunow), Daniaj (Jacobsen), Groenlandiae 

 (Boldt), Arnericai borealis (WooD, Wolle) et Brasili?e (Nord- 

 stedt); in Birmania Asia^ (Joshua). Dimens. 40-47* 16-20 (Kircli- 

 ner), 50 « 22 (Cooke), diam. 20-25 ix. (Wolle), latit. isthmi 5-6 [j.. 

 — Var. medioleve Nordst. Freshw. Alg. of N. Zeal. and Au- 

 stral. p. 50, t. 5, f. 12, Botaniska Notiser 1887, p. 160, Notarisia 

 1888, p. 400: granulis supra isthraura in series 2 horizontales 

 paullum arcuatas (et 6 verticales), in area insuper nullis, ce- 

 teris subregulariter quincuncialiter ordinatis in series oblique 

 transversas (et rainus evidenter subverticales et horizontales); 

 pyrenoidibus binis. Ad a Arthur Pass, Taupo, Orakeikorako » in 

 Nova Zelandia (S. Berggren). Dimens. 57-66*28-40, lat. isthm. 

 14-20 a. — Var. intumescens Nordst. Freshw. Alg. of N. Zeal. 

 and Austral. p. 50, tab. 5, f. 13, Botaniska Notiser 1887, p. 160, 

 Notarisia 1888, p. 400; majus; semicellulis pauUo tumidis, lateri- 

 bus paullo convexis superne angustatis granulis ad basin in 2 

 series horizontaliter arcuatas, ceteris (quoque in centro semicellu- 

 larum !) hic illic in series, sed vulgo non evidenter, ordinatis ; py- 

 renoidibus binis. Ad u Arthur Pass )) in Nova Zelandia (S. Berg- 

 gren). Dim. 85-86 * 51-52, lat. isthm. 24-26 y.., crass. 36 ^j.. — 

 Var. tumidum Wolle Desm. U. S. p. 78 et in Hedwigia 1883, p. 

 189: lateribus (e fronte) haud parallelis at iuflatis vel rotundatis. 

 In locis variis Araericse borealis (Wolle). 

 130. Cosmarium formosulum Hoff in Nordst. Desmidieer fr. Boruholra 2367 

 p. 194, tab. IV, f. 6-7, Notarisia 1889, p. 676. — Submediocre. 

 circiter quinta parte longius quam latius, subhexagonum, profunde 

 constrictum, siuu lineari angustissirao (extrerao ampliato); serai- 

 cellulis obtuse triangularibus, apice subproducto et leviter quadri- 

 crenato late truncatis, lateribus convexis 6-7-crenatis, creuis 3 

 superioribus bigranulatis, inferioribus integris, angulis inferioribus 

 obtuse rotundatis, supra isthraum tumore granulato praiditis, gra- 

 nulis in 5(-6) series verticales, apicibus subconvergentes disposi- 

 tis, ad marginem versus subtiliter granulatis, granulis concentrice 

 dispositis, in seriebus interioribus et ad basin semicellulae singu- 

 lis, in ceteris binis; a vertice visis anguste ellipticis, apicibus an- 

 guste rotundatis, subtilissime crenulatis, medio utrinque granulis 

 quinque prominentibus; a latere visis...,; pyrenoidibus biuis; lati- 

 tudine apicis (plerumque) a^quante vel paullo' minori; crassitudine 



