•Jl.i 



.KIMS H(aYl l'l-.TI.USKN 



III 



Chmoioirns liiryitins vnr. diinidialns Mauck i-l Uirhlcr Phycolhcca 



imiv. lut IS'J. 



Phumcocciis tttniidiis Hal). Al;^. no. 104. 



Chroococfiis celliilis s|)lia'iicis vel c prcssione imiliia plus iniinisvc 

 an^ulosis. sin-iulis vel l)inis. tornis vel (|iiaternis in familias consociatis, 

 sine teniimento 13—27 ii crassis. cum tc-^imi. 18—32 // crassis; Icfiii- 

 nuMito ita(|ue crasso, (lisliiule lamelloso. chlorozincico joduralo lulescenlc 

 vi-1 fiiscesceiite; contenlii oellulariim violaceo. 



S. Icel. liainartjon^iir (Steenstriip)! — N. Iccl. Ski'iUislatiir (MNvatn) 

 a small pond lemp. li) " 'Vt 1914. 

 Arca: — En};l., (icrm. 



Tilis species was formerly classed lof^elher with Chroococciis luniidiis 



(Kutz.) Nag. from which, however, it is 

 casily distintfuishcd by \) ils coloiir which 

 is a pronounccd l)lue violet (Codex nr. 459 

 or 486), 2 its strongly stratified shealii, 

 3) and by the faet that its sheaths, when 

 Irealed with chlor-zinc-iodine. assumc a 

 yellowish or brown colour. the stratifi- 

 cation becoming at the same time still 



Fiu 1 



(^liroococcus \\'cstii 

 n. sp. ' X<JOO). 



more distinct. 



In his (iiagnosis of C. lun/ id ns v. viola- 

 ceus West does nol menlion anylhing at all about the stratilication of 

 the sheath, but this does nol necessarily imply the absence of same. 

 as the (liagnosis of C. Iiin/idiis admils of stratilication of the sheath. The 

 Iwo lirst menlioned synonyms are, in faet, to a great extent dou!)lful. 



Willc 1914 p. 8 1 describcd a new var. subuiulaceiis which, according 

 lo his opinion, is dislinguished from var. violaceus West by smaller cells 

 and by living epiphylic on olhcr algae. The illustration (1. c. tab. I, tig. 1), 

 however. shows thai var. siihiuolaceiis Wille hardly can be included in 

 the new species C. Wcslii nob. as the sheath apparently lacks slialilicalion 

 entircly. 



Hauck et Hichler Phycolheca universalis nr. 182 rclcr to Hab. ,\lg. 

 nr. 2033. I have examined Ibis sample, bul il is evidenlly a (|uile dillerenl 

 plant. Ihe cells haviiig apparently no slieath at all. 



Chroococcus helveticus Nag. 

 West 1902 p. 24.'). 



'Mveravellir, on rocks and stones among Galothrix parielina var. 

 thermalis. lemp. 24^ (] 



.\rca: Kur., Afr., Tromso. Xovava Zemlva. 



Chroococcus macrococcus Kfitz. Hab. 



Kutz, Tab. j)hvc. I tab. 2. De-Toni Sylloge Alg. V p. 8. Rab. Algen 

 nr. 921. 



1% Icel. Among mosses in inundaled area al LagarlljtU. lem]). 16^ 

 14. - N.W. Iccl. ArnarfjonVir Hariot 1 1893 p. 314), Belloc ^1894 p. 6). 

 .\rea: — Kur., Am. .\iistr.. l'jeroes, dreenland. Antarclic. 



