Rudolph Arnold Maas Geesteranus

Rudolph Arnold Maas Geesteranus (1911-2003). Dutch lichenologist

IPNI standard form: Maas Geest.

Taxon names authored

(List may be incomplete)

Published author of:

Evernia prunastri var. herinii (P.A. Duvign.) Maas Geest., 1954

Parmelia aspera f. aspidota (Ach.) Maas Geest., (1948) (see Melanohalea exasperata)

Physcia grisea f. harmandii Maas Geest., 1952

Physcia grisea f. sorediosa (Malbr.) Maas Geest., 1952

Physcia nigricans f. tremulicola (Nyl.) Maas Geest., 1952

Xeromphalina aspera Maas Geest., Persoonia 15(1): 50 (1992)