Phyllostegia mollis Benth. var. fagerlindii Sherff, Occas. Pap. Bernice P. Bishop Mus. 20(1): 13 1949.
Kaua`i, northernmost Kaua`i, Hanalei Valley, above second house. 9 March 1948. Fagerlind and Skottsberg 6533.
Holotype
[S].
Phyllostegia mollis Benth. var. glabrescens O. Deg. & Sherff, in Degener, Fl. Hawaiiensis, fam. 316. Phyllostegia mollis 1935.
Moloka`i, W of Pepe`opae [Bog], open rain forest. 12 April 1928. Degener 5413.
Holotype
[F]. Isotype(s)
[BISH!, NY [mfc!]].
Phyllostegia mollis Benth. var. hochreutineri Sherff, Bot. Leafl. 8: 18 1953.
Kaua`i, Waimea, near the Gay cottage [at Kaholumanu]. 1400 m. 20 April 1905. Hochreutiner 3579.
Holotype
[G].
Phyllostegia mollis Benth. var. lydgatei Sherff, Amer. J. Bot. 21: 700 1934.
O`ahu, s.l.. s.d.. Hillebrand s.n..
Lectotype
[US]. Lectotypified in Wagner. Novon 9: 282. 1999.
Phyllostegia mollis Benth. var. lydgatei Sherff, Amer. J. Bot. 21: 700 1934.
O`ahu, Wai`anae Mts.. 1869. Lydgate s.n..
Holotype
[B].
Phyllostegia mollis Benth. var. micrantha Sherff, Amer. J. Bot. 21: 700 1934.
Lana`i, Maunalei Valley. 25 June 1913. Forbes 170.L.
Holotype
[BISH].
Phyllostegia mollis Benth. var. resinosa Fosberg, Occas. Pap. Bernice P. Bishop Mus. 16(15): 345 1942.
Kaua`i, plateau at head of Kalalau Valley, in wet forest. 375 m. 29 December 1935. Fosberg 12696.
Holotype
[BISH].
Phyllostegia mollis Benth. var. skottsbergii Sherff, Field Mus. Nat. Hist., Bot. Ser. 17: 577 1939.
Kaua`i, Koke`e, in dense woods. 3600 ft. 8 March 1926. Wilder 451.
Holotype
[F].