7402 Therorhodion Small
- Small, N. Amer. Fl. 29: 45 (1914).
Notes: Elven and Murray: Kron and Judd (1990) presented good molecular evidence for accepting Therorhodion apart from Rhododendron. This is further strengthened by the analyses of Kron et al. (1999) and Kurashige et al. (2001).
The northern, amphi-Beringian Therorhodion glandulosum and the more southern, amphi-Pacific T. camtschaticum (Pall.) Small (Rhododendron camtschaticum Pall.) must be closely related but are consistently different in some characters. No intermediates have been seen in the material (ALA) from Alaska where they nearly meet. We therefore accept two species. Therorhodium camtschaticum is not yet documented to reach the Arctic even if Hultén (1973) reported it from March Mountain north of Dillingham in southwestern Alaska. The three reports of diploid chromosome numbers (2n = 24, 26) included for the collective species by Löve and Löve (1975a) belong to T. camtschaticum.
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Therorhodion camtschaticum o Rhododendron camtschaticumcamtschaticum en Furano-dake, Hokkaido, Japon. ??????????????????
Source: Inti-sol at Wikispecies
