Flora of New Zealand Series

=Thelotrema aemulans Kremp., Verhandl. zool.-bot. Ges. Wien 26: 453 (1876).

=Thelotrema monosporum var. patulum Nyl. sensu C.Knight, Trans. N. Z. Inst. 8: 327 (1876). Trans. Linn. Soc. ser. 2, Bot. 1: 278 (1877). [This taxon was incorrectly referred to T. lepadodes Tuck. in the Flora account (Galloway 1985a: 574–575). In the most recent treatment of Thelotrema, Matsumoto (2000: 32) synonymises T. lepadodes with T. monosporum.]

=Ascidium attenuatum C.Knight, Trans. N. Z. Inst. 15: 354 (1883).

=Ascidium manosporum (Nyl.) C.Knight, Trans. N. Z. Inst. 15: 355 (1883).

Thelotrema aemulans. Type: New Zealand. Sine loco [probably Wellington], Charles Knight – M.

Thelotrema monosporum var. patulum. Type: New Zealand. Sine loco [probably Wellington], Charles Knight – ? WELT.

Ascidium attenuatum. Lectotype: New Zealand. Sine loco [probably Wellington], Charles Knight – WELT, Herb. Knight Vol. 37A, p. 11 [fide Galloway (1985a: 575)].

Ascidium manosporum. Lectotype: New Zealand. Sine loco [probably Wellington], Charles Knight – WELT Herb. Knight Vol. 37A, p. 1 [fide Galloway (1985a: 575)].

Description : Flora (1985: 575).

Chemistry : TLC−, all reactions negative.

N: Auckland (Waitakere Ra.), Wellington. Canterbury (Banks Peninsula), Otago (Waitati, Dunedin), Southland (Te Anau). Still very poorly collected and understood in New Zealand. Known also from Sri Lanka, Thailand, Java, Hawai'i, Cook Is, New Caledonia, Tahiti and Australia (Salisbury 1972a; Hale 1981; Filson 1996; Elix & McCarthy 1998; Wolseley et al. 2002; McCarthy 2003c, 2006). European material formerly referred to this taxon (Salisbury 1972a; Hawksworth 1992c) is now referred to T. macrosporum P.M.Jørg & P.James rvis et al. 1995: 347–348).

Palaeotropical

Illustrations : Knight (1876: pl. X, fig. 26; 1877: pl. X, fig. 26 – as Thelotrema monosporum var. patulum; 1883: pl. XXVII, fig. 18 – as Ascidium manosporum; fig. 19A – as A. attenuatum); Salisbury (1972a: 272, fig. 10); Hale (1981: 257, fig. 8F); Purvis et al. (1995: 349, fig. 5A); Matsumoto (2000: 33, fig. 14C, D; 35, fig. 15C, D).

Thelotrema monosporum is characterised by: the corticolous habit; emergent apothecia; brown, muriform, thin-walled ascospores (1–4 per ascus), 120–190 × 20–40 μm; and negative thallus chemistry.