Type Information
Pittosporum hosmeri Rock , Bull. Torrey Bot. Club 37: 297 1910.
Hawai`i, North Kona, [Mt. Hualalai, lava fields of] Pu`uwa`awa`a. 3000 ft. 17 June 1909. Rock 3957.
Holotype [BISH]. Isotype(s) [A, BISH!, GH [2]].
*Verification: R.K. Shannon; Haas, J.E. 1977. Allertonia 1:73-167.
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Pittosporum hosmeri Rock f. saint-johnii (Sherff) J.E. Haas, Allertonia 1: 107 1977.

*Verification: R.K. Shannon.
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Pittosporum hosmeri Rock var. longifolium Rock, Indig. trees Haw. Isl. 163 1913.
Hawai`i, South Kona, Kapua. July-January 1911- 1912. Rock 10023.
Lectotype [BISH]. Isolectotype(s) [A, BISH! [4], F, GH, K, NY, UC, US]. Lectotypified in Haas. Allertonia 1: 106. 1977.

Note: Haas (1977) chose as lectotype one of the sheets labeled "cotype" by Rock, not the sheet labeled "type." Epithet published as "longifolia," orthography corrected by Herbst, in 1974 edition of Rock's book (p. 523). Additional syntypes (BISH!).
*Verification: R.K. Shannon; Haas, J.E. 1977. Allertonia 1:73-167.
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Pittosporum hosmeri Rock var. saint-johnii Sherff, Field Mus. Nat. Hist., Bot. Ser. 22: 413 1941.
Hawai`i, Pu`uwa`awa`a, Pu`u Hualalai. 4000 ft. 30 December 1931. St. John et al. 11442.
Holotype [BISH]. Isotype(s) [B, BISH! [2], F, K, UC, US].

Note: Additional syntype: Hawai`i, Kilauea, Mauna Loa, beyond Puaulu, July 1911, Rock 10074 (BISH! [2]). Published as "longifolia;" Herbst corrected the spelling to "longifolium" in the appendix to the reprinted edition (p. 513).
*Verification: R.K. Shannon; Haas, J.E. 1977. Allertonia 1:73-167.
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