459 
Guymer & Forster, Triunia kittredgei, a name to be rejected 
the protologue whereas Foreman’s (1986) 
lectotypification, Simmonds s.n. [AQ317462], 
agrees with the protologue. Therefore, 
Sleumer’s lectotypification is superseded 
by Foreman’s (1986) lectotypification as per 
Article 9.19(b) of the International Code of 
Nomenclature for algae, fungi and plants 
(Melbourne Code) (ICN) (McNeill et al. 
2012). Triunia robusta Foreman remains 
as the correct name to be applied to the SE 
Queensland species (Foreman 1986, 1995), T. 
erythrocarpa Foreman the correct name for 
the NE Queensland species (Foreman 1987, 
1995), and T. kittredgei is a synonym of T. 
robusta. Note that the ‘protologue’ provided 
by Olde (2015) for H. youngiana var. robusta 
is not the actual protologue from White 
(1933), but is a short Latin description from 
Sleumer (1955). 
Taxonomy - conspectus of Triunia Lour. 
1. Triunia erythrocarpa Foreman, Muelleria 
6: 302, fig. 3 (1987). Type: Queensland. Cook 
District: State Forest Reserve 310, Swipers 
Logging Area, 8 October 1973, B. Hyland 
6919 (holo: CNS; iso: BRI, CNS, NSW). 
Triunia robusta auct. non (C.T.White) 
Foreman; Olde, Telopea 18: 190 (2015). 
2. Triunia montana (C.T.White) Foreman, 
Muelleria 6: 195 (1986); Helicia youngiana 
var. montana C.T.White, Contr. Arnold 
Arbor. 4: 24 (1933). Type: Queensland. Cook 
District: Palm Camp, Bellenden Ker, 6 July 
1889, F.M. Bailey s.n. (lectotype: BRI [AQ 
317454], fide Foreman 1986; isolectotype: 
MEL n.v). 
Olde (2015) assumed that Sleumer (1955) 
lectotypified H. youngiana var. montana 
C.T.White by referring to a non-existent 
specimen at NSW ‘Bellenden Ker, near the 
summit, White (NSW, typus , haud vidi)’. 
Foreman (1986) was the first to lectotypify 
H. youngiana var. montana by selecting as 
lectotype F.M. Bailey’s specimen from Palm 
Camp, Bellenden Ker (BRI [AQ317454]). This 
specimen agrees with White’s protologue and 
has on the specimen label in C.T. White’s 
handwriting ‘Type of variety’. The selection 
by Foreman (1986) of this specimen as 
lectotype is in accordance with the Code 
Article 9 and Rec. 9A.3. Note that Olde 
(2015) reproduced Sleumer’s (1955) Latin 
description for H. youngiana var. montana 
and not White’s (1933) protologue. 
3. Triunia robusta (C.T.White) Foreman, 
Muelleria 6: 196 (1986); Helicia youngiana 
var. robusta C.T. White, Contr. Arnold Arbor. 
4: 23-24 (1933). Type: Queensland. Moreton 
District: Eumundi, November 1892, J.H. 
Simmonds s.n. (lectotype: BRI [AQ317462], 
fide Foreman 1986; isolectotype: BRI 
[AQ317462 - 2 nd sheet]). 
Triunia kittredgei Olde, Telopea 18: 192 
(2015), syn. nov. Type: Queensland. Moreton 
District: Brolga Park, 6 km W of Woombye, 
27 October 1990, A.R. Bean 2538 (holo: NSW 
n.v/, iso: BRI, MEL n.v). 
4. Triunia youngiana (C.Moore &F.Muell. ex 
F.Muell.) L.A.S. Johnson & B.G.Briggs, Bot. J. 
Linn. Soc. 70: 175 (1975); Helicia youngiana 
C.Moore & F.Muell. ex F.Muell., Fragm. 4: 84 
(1864); Macadamia youngiana (C.Moore & 
F.Muell. ex F.Muell.) F.Muell. inG.Bentham, 
FI. Austral. 5: 406 (1870); H. youngiana var. 
typica C.T.White, Contr. Arnold Arbor. 4: 23 
(1933), nom. inval. Type: New South Wales. 
Duck Creek, Richmond River, Richards 4, in 
1863 (holo: MEL 93852A, image!, fide Olde 
2015). 
Acknowledgements 
We thank David Halford and Rod Henderson 
for reviewing the manuscript. 
References 
Foreman, D.B. (1986). A new species of Helicia , new 
combinations and lectotypification in Triunia 
(Proteaceae) from Australia. Muelleria 6: 193— 
196. 
- (1987). New species of Xylomelum Sm. and 
Triunia Johnson & Briggs. Muelleria 6: 299- 
306. 
- (1995). Triunia. Flora of Australia 16: 404-407. 
Forster, P.I., Bean, A.R. & Tucker, M.C. (1990). 
Extinction is not always for ever: Triunia robusta 
(Proteaceae). Australian Systematic Botany 
Society Newsletter 63: 9. 
