New Zealand Journal of Botany abstracts

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Mikronegeria fuchsiae sp. nov., a rust fungus on Fuchsia and Phyllocladus in New Zealand

Patricia E. Crane

Ensis Forest Biosecurity and Protection
Private Bag 3020
Rotorua Mail Centre
Rotorua 3046, New Zealand
pacrane@shaw.ca

Roger S. Peterson

St. John’s College
Santa Fe, New Mexico 87505, USA

Abstract  Inoculations showed that two previously described rust fungi (Basidiomycota: Pucciniales), Caeoma peltatum on Phyllocladus spp. and Uredo fuchsiae on Fuchsia spp., both endemic to New Zealand, are different stages of a single species. Uredinial and telial states formed on Fuchsia excorticata after inoculation with aeciospores from Phyllocladus trichomanoides. The oblong teliospores form directly from subepidermal hyphae, then divide to become metabasidia, each cell of which germinates to form a long suprastomatal sterigma and basidiospore. The rust closely resembles species in the family Mikronegeriaceae, and is named Mikronegeria fuchsiae sp. nov. This is the first record of a member of the Mikronegeriaceae in New Zealand.

Keywords conifer rust; life cycle; Podocarpaceae; Uredinales; Onagraceae

B07004; Online publication date 20 December 2007; Received 5 March 2007; accepted 8 November 2007

New Zealand Journal of Botany, 2007, Vol. 45: 707–713
0028–825X/07/4504–0707 © The Royal Society of New Zealand 2007

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