Closterium directum W.Archer

NEW YORK BOTANICAL GARDEN
1
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tur
acul
Wittrock, Nordstedt, Lagerheim. Algoe exsiccatce.
1391. Glosterium directum Arch.
et Arthrodesmus Incus (.Breb.) Hass, ß intermedius Wittr.
Cellulse a latere apicibus rotundatis, zygosporse ut in a, sed ut vide-
aculeis numerosioribus. Diam. zygospor. sine äcul. 18—20 u, cum
30 — 36 ¡u>, long. acul. c. 8 U.
Norvegise arcticse in fossa turfosa prope Tromsö 18^-94
leg. G. Lagerheim.
Determ. 0. Nordxtedt.
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