Type Information
Pittosporum glabrum Hook. & Arn. , Bot. Beechey Voy. 110 1832.
O`ahu, s.l.. 1826- 1827. Lay and Collie s.n..
Holotype [K].
Note: non Putterl. Locality in doubt, "seem to be also from O`ahu."
*Verification: None.
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Pittosporum glabrum Hook. & Arn. f. hypoleium O. Deg. & Sherff, in Sherff, Field Mus. Nat. Hist., Bot. Ser. 22: 411 1942.
O`ahu, ridge NE of Nu`uanu Pali, on exposed ridge in tapestry forest. 20 November 1926. Degener and Ochiae 10988a.
Holotype [F].

*Verification: None.
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Pittosporum glabrum Hook. & Arn. f. subcandidum Sherff, Field Mus. Nat. Hist., Bot. Ser. 22: 411 1941.
Moloka`i, Manawai-Kahananui Ridge, at edge of moist forest. 600 m. 24 December 1936. Fosberg 13402.
Holotype [F]. Isotype(s) [B, BISH!].

Note: Sherff cites the type as being on two sheets; Haas cites an isotype at F, but presumably this is one of the two sheets Sherff considered to be the holotype.
*Verification: R.K. Shannon; Haas, J.E. 1977. Allertonia 1:73-167.
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Pittosporum glabrum Hook. & Arn. var. glomeratum (Hillebr.) Sherff, Field Mus. Nat. Hist., Bot. Ser. 22: 410 1941.

*Verification: D.M. Mix.
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Pittosporum glabrum Hook. & Arn. var. intermedium Sherff, Field Mus. Nat. Hist., Bot. Ser. 22: 410 1941.
O`ahu, Wai`anae Range, Palehua. 1-4 April 1911. Forbes 1676.O.
Holotype [BISH]. Isotype(s) [B, BISH!, F, K].

*Verification: R.K. Shannon; Haas, J.E. 1977. Allertonia 1:73-167.
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Pittosporum glabrum Hook. & Arn. var. spathulatum (H. Mann) Sherff, Amer. J. Bot. 28: 25 1941.

*Verification: R.K. Shannon.
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Pittosporum glabrum Hook. & Arn. var. tinifolium Sherff, Field Mus. Nat. Hist., Bot. Ser. 22: 412 1941.
Maui, [East Maui], ridge right side Kipahulu. 17 November 1919. Forbes 1668.M.
Holotype [BISH]. Isotype(s) [B, BISH! [2], F, K, UC].

Note: Publication erroneously gives year of collection as 1917; publication gives locality as Kipakula, southeasternmost East Maui.
*Verification: R.K. Shannon; Haas, J.E. 1977. Allertonia 1:73-167.
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