Hyphodermella maunakeaensis Gilb. & Hemmes

Hyphodermella maunakeaensis Gilb. & Hemmes, in Gilbertson, Desjardin, Rogers & Hemmes, Fungal Diversity 6: 53 (2001) Figs 6 B, 7 Type. United States • Hawaii: Pu’u La’au, Mauna Kea, North Hilo District, Hawai’i Cou.; on Myoporum sandwicense; 22 Nov 1998; R. L. Gilbertson 22335 (holotype, BPI). Description and iconography. In Gilbertson et al. (2001). Habitat and distribution. On Myoporum sandwicense, an endemic species from Hawaii. Species known only from Hawaii, where, according to Gilbertson et al. (2001), it is well represented. Specimen examined. United States • Hawaii, Island of Hawaii, Mauna Kea, Parker PTA; 16 Dec 1997; on naio (Myoporum sandwicense); D. E. Hemmes, DEH- 1641 (paratype, CFMR!). Notes. Our phylogenetic analyses (Figs 1, 2, 3, 4) support the identity of H. maunakeaensis. Gilbertson et al. (2001) described H. maunakeaensis with basidia 15–25 × 5–7 μm and spores 6.5–7.5 × 3.5–4 μm, smaller than the specimen studied, 26–37 × 6–7 μm and 6.5–9 × 4.5–5 μm respectively, Q = 1.7, but these data must be taken with caution, since we have only studied one specimen. Hjortstam and Ryvarden (2007) reported one specimen from Venezuela as H. aff. maunakeaensis, we have not been able to locate this material, and it would be interesting to review it to better understand the distribution of this species.