Solanum laysanense Bitter , Abh. Naturwiss. Verein Bremen 16: 433. 1900.
Type information:
Holotype [BREM]. H. H. Schauinsland s.n.. 14 July 1896. Laysan: dunes on the north side of the island. Isotype(s) [BISH! [2]].

Note: Check publication again for locality info. The two sheets at BISH are numbered A and B. Write to BREM and B to see if they have/had specimens of this. Ask BREM if they have any collections of phanerogams (according to collector index, only cryptogams went to BREM). If there are any at BREM, one could be designated as lectotype.

=Solanum nelsonii
Note: Check publication again for locality info. The two sheets at BISH are numbered A and B. Write to BREM and B to see if they have/had specimens of this. Ask BREM if they have any collections of phanerogams (according to collector index, only cryptogams went to BREM). If there are any at BREM, one could be designated as lectotype.

*Verification: R.K. Shannon.