1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
4 specimens
Pyrrosia albicans
BISH 1613550 · Korthals
Sumatra, Indonesia
Davallia korthalsii
BISH 1613562 · Korthals
Pronephrium peltatum
BISH 1613673 · Korthals
Christensenia aesculifolia
BISH 1613820 · Korthals