Alphitonia ponderosa Hillebr. var. auwahiensis H. St. John, Phytologia 35: 180 1977.
Maui, East Maui, Auwahi. 3000 ft. 30 June 1972. St. John 26873.
Holotype
[BISH].
Alphitonia ponderosa Hillebr. var. costata H. St. John, Phytologia 35: 180 1977.
O`ahu, Wai`anae Mountains, Makua Valley against cliff of backbone, about middle of cliff face in a large V-shaped gulch, edge of steep ridge. 1600 ft. 28 November 1976. Obata 76-305.
Holotype
[BISH]. Isotype(s)
[US!].
Alphitonia ponderosa Hillebr. var. grandifolia H. St. John, Phytologia 35: 181 1977.
Kaua`i, Koke`e Park, upper Waimea Canyon, 2 mi S of Park headquarters. 3000 ft. 10 July 1966. Carlquist 1956.
Holotype
[BISH].
Alphitonia ponderosa Hillebr. var. kauila H. St. John, Phytologia 35: 181 1977.
Hawai`i, between Pu`uwa`awa`a and Huehue. 18 August 1926. Degener 3344.
Holotype
[BISH].
Alphitonia ponderosa Hillebr. var. lanaiensis H. St. John, Phytologia 35: 182 1977.