r !
te ; :
w
i)e oopulatione oonf. Archer in Mior. Journ. 1867. July, p. 186—193.
Individua singula, (vel post divisionem faotam bina in tegumento
communi) libere natantia vel in familias consociata et in muco matrioali
nidulantia.
a. Lamina chlorophyll, unica.
* C e llu la e u tr o q u e p o lo o b tu s a e .
Sp. condensata Breb. (iu llalfs Brit. Desmid. p. 179. N. 1.
T. XXXIV. F. 1. Liste p. 137. X. 1. De By Conj. T. V. F. 12.
Cleve Bidrag p. 492. X. 1. Archer in Pritch. Inf. p. 751. T. II.
F. 4. Mior. Journ. 1867. 1. c. T. VIII. F. 5—11. llabenh. Alg. X. 1900.
sub X. 171 et 1231.). Sp. cylindracea, recta (vel leviter curvata), ooties
vel decies longior quam lata, utroque polo rotundata; laminis chlorophyll.
singulis, anfractibus subarctis (plerumque 8—12). v. v.
Diam. i/u!, — ‘,'92' " = 0,00074 — 0,0009".
Hab. in aquis stagnantibus, praeoipue turfosis totius Europae, libere
natans vel muco liquido involuta.
Sp. closteridia (Entospira closteridia Bréb. in Ktz. Tabul. phyool. I.
p. 24. X. 171. T. 86. F. II. Palmogloea closteridia Ktz. Spec. Alg.
p. 228. X. 6.). Sp. minima, fusiformis, plerumque modioe curvata,
utroque polo obtusa, diametro triplo circiter longior, in muco matrioali
subgelatinoso amorpho achroo nidulans. v. s.
Diam. 1/480"' = 0,00018".
Hab. in Gallia, ad „Falaise“ detexit ol. de Brébisson.
Sp. bryophila (Endospira bryophila Bréb. in Desmaz. Cr. de Pr.
ed. II. 1654! (1850). Palmogloea endospira Ktz. Tabul. phyool. I.
p. 19. T. XXIV. F. 6. Spec. Alg. p. 229. X. 7. Spirotaenia musci-
oola de By Conj. p. 75. T. VII. F. P.). Sp. minima, bryophila, in
gelatina matrioali nidulans, oblongo - cylindrioa, recta vel subcurvata, bis
vel ter longior quam lata, utroque polo rotundata; lamina chlorophyll,
singula anfraotu 1 — IV2 . v. v.
Diam. ( 35s — V29S'" = 0,00024 — 0,00029".
Hab. in muco gelatinoso dilute viridi in muscis, liohenibus, per
Europam passim : in Gallia, Suecia, pluribus locis Germaniae, in
comitatu Tyrolensi, Helvetia.
Sp. erythrocephala Ilerm. J. (in litt. c. icone!) Sp. parva, fusiformis,
quater-sexies longior quam lata, recta, utroque polo obtusa vel
rotundata, lo o e llo a p io a li ru b ro p r a e d i t a ; lamina chlorophyllosa
singula lata, anfractibus 1 ( 2 — 2. v. ic.
iiab. in fossis prope Xeudamm Borussiae ubi ol. Hermann 1.
detexit.
A Sp. minuta quaoum Archer in Pritch. Inf. oonjunxit apicibus
obtusis vel rotundatis r u b r o - oapitatis satis superque diversa.
Sp. tru n cata Archer (in Micr. Journ. 1862. p. 253. T. XII.
F. 2 8— 31. et 1867, July. T. VIII. F. 12. [Zygospora]). Sp. cylindrical
sexies vel octies longior quam lata, polos versus leniter attenuata, apicibus
obtuso-truncatis; lamina chlorophyll, unica arcte spiraliter torta,
apices non attingente, v. ic.
Diam. 7 3 1 4 " ' = 0,00028".
Hab. in paludibus parvis ad Dublin in Scotia.
** C e llu la e u tr o q u e p olo a c u ta e .
Sp. parvula Archer (Mior. Journ. 1862. p. 254. T. XII. F. 32—43.)
Sp. minima, fusiformis, diametro 4 — 8 -pio longior, apicibus aoutis;
lamina chlorophyll, unica obliqua, laxissime spirali, v. io.
Diam. ( 5 0 0 70 3 0 == 0,00017 — 0,00014".
Hab. in stagnis turfosis prope Dublin.
Sp. minuta Thuret (in Bréb. Liste p. 157. X. 3. Eabenh. Krypt.
Flor. von Sachs, p. 177.). Sp. parva, fusiformis, laevis, quater, quinquies
vel sexies longior quam lata, utroque polo acuminata; lamina
chlorophyllosa spirali sublata, anfractibus 2 — 2 ‘/5 ; looello nullo, v. v.
Diam. V2'4 — V22(ì'" = 0,00082 — 0,00039".
Hab. in fossis Galliae (prope Parisios, Falaise), Saxoniae, Borussiae,
Sueciae (ad Upsaliam legit Cleve).
b. Laminis clilorophyllosis pluribus.
Sp. ohscura Ralfs (Brit. Desmid. p. 179. X. 2. T. XXXIV.
F. 2. Bréb. Liste p. 157. X. 2. Fresenius in Verh. der Senckenb.
naturf. Ges. II. p. 240. T. XL F. 2 1—^26. Eabenh. Alg. Xo. 510
et 727 !). Sp. valida, oylindrica vel fusiformis, obscure viridis, quinquies
vel ooties longior quam la ta , utroque polo attenuata, apicibus obtusis ;
laminis ohioroph. pluribus angustis, singulis, anfractibus 2—3. v. v.
Diam. V90 — Vsi'" = 0,00098 — 0,0011".
Hab. in aquis stagnantibus, in muco gelatinoso per rupes, aquae-
ductus, muros irroratos effuso per totam Europam, passim observata,
e gr. in Anglia: Dolgelley, Penzance (J. Ealfs), Clifton (Leipner); in
Hibernia: Dublin (Archer); in Gallia: Falaise (de Brébisson), Cherbourg
(Le Jolis); in Hollandia: Leiden (Suringar); in Sueoia: Stockholm,
Upsala (Cleve), Gothenburg (L. E.) ; in Germania: Neudamm (Itzigsohn
1 0 *
I: