Type Information
Basionym: Pterotropia gymnocarpa Hillebr. , Fl. Hawaiian Isl. 151 1888.
O`ahu, valley of Niu. s.d.. Lydgate s.n..
Holotype [B]. Isotype(s) [BISH! [3]].
Note: RKS examined BISH specimens
*Verification: R.K. Shannon.
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Basionym: Pterotropia gymnocarpa Hillebr. var. pupukeensis O. Deg., Fl. Hawaiiensis, fam. 281. Pterotropia gymnocarpa 1938.
O`ahu, Pupukea-Kahuku trail near Pu`u Moa, dense forest. 3 April 1938. Degener et al. 11919.
Holotype [BISH]. Isotype(s) [B, BISH! [2], BH!, BRI!, CU, G!, GH, L, MASS!, MO!, NY, S, US!].

Note: Additional isotypes according to the label on the holotype. RKS examined BISH and MO sheets.
*Verification: R.K. Shannon.
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