Flora of New Zealand Series

≡Fistulariella geniculata (Hook.f. & Taylor) Bowler & Rundel, Mycotaxon 6: 195 (1977).

=Ramalina inflata var. gracilis Müll.Arg., Flora 71: 131 (1888).

Lectotype: New Zealand. Sine loco [probably Bay of Islands), J.D. Hooker – BM [fide Galloway (1985a: 499)]. Isolectotype – FH.

Ramalina inflata var. gracilis. Holotype: New Zealand. Sine loco [probably Bay of Islands), J.D. Hooker – FH.

Descriptions : Flora (1985: 499) see also Blanchon et al. (1996a: 77–79).

Chemistry : Two chemodemes present: (1) Usnic and sekikaic acid , ±divaricatic acid, and (2) usnic and divariactic acid, ±sekikaic acid.

K: N: Northland (Great Barrier I.) to South Auckland (Waikato and Coromandel Peninsula), Hawke's Bay, Wellington (Wanganui – Manawatu) [map in Bannister et al. (2004: 128, fig. 4)]. Best developed N of Auckland on both the mainland and offshore island coastal sites where it is found most commonly on Avicennia marina var. resinifera. Known also from Beilschmiedia tawa, Crataegus, Kunzea ericoides, Lophomyrtus, Metrosisderos excelsa, Phyllocladus, Pittosporum, Plagianthus, Podocarpus totara, Populus, Pinus radiata, Prunus, Salix, and also from rocks (especially on offshore islands).

Endemic

Illustrations : Blanchon et al. (1996a: 78, fig. 7A; 85, fig. 9B).

Ramalina geniculata is characterised by: the corticolous (occasionally saxicolous) habit; fully inflated branches with oval perforations; and convex apothecia. South I. material of R. geniculata (Galloway (1985a: 499) is referred to either R. glaucescens or R. riparia (Blanchon et al 1996a: 80).