Cosmarium globosum subsp. subarctoum Lagerh.

y. v-s?
0 12 3 4
6 7 8 9 10
copyright reserved botanical Garden
Wittrock et Nordstedt. Algae exsicxatce.
567. Cosmarium globosum Bulnh. *subarctoum Lager-
7^e^m nov, siibsp.
C. minimum, fere quarta parte longius quam latius, medio modice
constrictum; semicellulae a fronte visae ovoideae, apice rotundato-truncatae,
aDgulis superioribus late rotundatis, a latere visae subglobosae, a vertice
visas late ellipticae. Membrana glabra, acliroa. Nuclei amylacei singuli.
Long. 18 //; lat. 14 p\ lat. isthm. 9—10 fx\ crass. 11 /**
A C. arctoo Nordst. differt cellulis magis constrictis, apicibus angu-
stioribus; a C. bioculato Bréb. differt cellulis minus constrictis; a C,
tine to Ralfs differt membrana achroa.
Conf. Nordst. Desm. arct. pag. 28, t. VII, fig. 25.
Sueciae in Lassby backar prope Upsaliam 18 /5 82.
.G. Lagerheim.
- /
02363309