138 
826. Cosmarium Botrytis (Bory) Menegh. a et b. Forma 
tumore centrali granulato non vel plus minus evoluto in C. Botr. 
ß subtumidum Wittr. et C. gemmiferum Bréb. transiens. 
Sueciæ a. ad Jokkmokk in Lapponia Lulensi 1883; b. prope 
Upsaliam 1882. Leg. G. Lagerlieim. 
c. Forma interdum tumore liorizontaliter elliptico seriebus 
verticalibus circa 6 granulorum ornato (fere ut in Klebs Desmid. 
Ost-Preuss. tab. Ill fig. 80), sed sæpe tumore nullo. 
(In Cosm. Botryt. ß subtumido Wittr. tota membrana granu- 
lata est, in C. gemmifero Bréb. granula circa tumorem granulatum 
centralem desunt. Intermedias formas nunc videns C. gemmiferum 
cum C. Botiytide conjungere volo). 
Sueciæ ad Strömsberg in Smolandia 1883. 0. Nordstedt. 
827. Cosmarium tetraophthalm-um (Kfitz.?) Bréb. f. minor Joshua 
nov. f. Long. cell. 76 — 90 //, lat. 56 — 66 p. 
Angliæ in Judmoor prope Cirencester 1883. W. Joshua. 
830. Cosmarium anceps Lund. Forma plus minus ad Cosm. 
sublobatum accedens; lateribus cellulæ interdum leviter sinuatis. 
Germaniæ ad parietes caldarii in Anger prope Lipsiam 1882. 
i P. Richter. 
831. Cosmarium Hammeri Reinsch. ex parte. (C. homaloder- 
mum Nordst. Desm. aret.) Forma lateribus eï apice semicellularum 
sæpe non evidenter retusis sed leviter rotundatis (semicellulis a la¬ 
tere visis late ovato-ellipticis). 
Scotiæ in rupe cataractæ ad Kirkaig prope Loch-Inver in Sut¬ 
herland 1885. O. Nordstedt. 
v • „ 
832. Cosmarium subtumidum Nordst. f. isthmo latiore. Long. 
26 — 28 p, lat. 24 — 26 ju- crass. 15—16 /u, lat. isthm. 12 —13 u. 
Sueciæ in alpe Njammats prope Q,vikkjokk in Lapponia Lulensi 
1883. G. Lagerheim. 
836. Closterium 'pusillum Hantzsch. (in Rabenh. Alg. Eur., n.-o 
1008). ß monolithum Wittr. nov. var. Var. paullulo minus cur¬ 
vata, locellis apicalibus semicellularum majoribus, corpuscula mobilia 
singula includentibus; crassitudine cellulæ 9 —10 p , longitudine 
30—A8 ju. 
Obs. Figuræ 540:ies amplificatæ 
sunt. 
Hungariæ in terra humida in con¬ 
sortio Oscillariæ spec, ad lacum Csorber- 
See in Tatra alta, in altitudine 1380 
mtr. s. m. 1885. 
Veit Wittrock. 
841. Closterium striolatum Ehrenb. Forma plus minus ad 
Cl. intermedium Ralfs accedens; crassitudine cell. 30—33 ju , longit. 
10—12-plo majore, distantia striarum longitudinalium 2 — 3 ju. 
Sueciæ ad Bäck par. Högby in (Elandia 1883. 
Veit Wittrock. 
