Euphorbia rivularis A. Heller , Minnesota Bot. Stud. 1: 846. 1897.
Type information:
Lectotype
[MIN]. A.A. Heller 2441. 24-26 June 1895. Kaua`i: Hanapepe River, near the falls.
Lectotypified in Koutnik. Allertonia 4: 342. 1987. Isolectotype(s)
[BISH! [2], CU, F [3], K!, NY, P, US!].
Note: Collection 2441, pro parte. Additional syntypes under Heller 2441 at same locality were collected 28 June (GH), and 2-8 July (MO, US!). The K and MIN sheets have a more specific date on the label of 25 June, but a less specific locality of Hanapepe and Wahiawa watershed. Heller did not cite a date, and cited locality as "banks of Hanapepe river...elevation of about 600 feet." Koutnik (1987) erroneously considered the MIN sheet to be the holotype, but under ICBN Art. 9.8 we take this as a lectotypification. He also erroneously considered some of the other syntypes to be isotypes. Wagner, W.L. & R.K. Shannon. 1999. Brittonia 51:422-438
=Euphorbia celastroides var. hanapepensis
Note: Collection 2441, pro parte. Additional syntypes under Heller 2441 at same locality were collected 28 June (GH), and 2-8 July (MO, US!). The K and MIN sheets have a more specific date on the label of 25 June, but a less specific locality of Hanapepe and Wahiawa watershed. Heller did not cite a date, and cited locality as "banks of Hanapepe river...elevation of about 600 feet." Koutnik (1987) erroneously considered the MIN sheet to be the holotype, but under ICBN Art. 9.8 we take this as a lectotypification. He also erroneously considered some of the other syntypes to be isotypes. Wagner, W.L. & R.K. Shannon. 1999. Brittonia 51:422-438
*Verification: David Lorence.