Ozothamnus reflexus (N.T.Burb.) de Salas & Schmidt-Leb.

De Salas, Miguel F. & Schmidt-Lebuhn, Alexander N., 2018, Integrative approach resolves the taxonomy of the Ozothamnus ledifolius (Asteraceae: Gnaphaliae) species complex in Tasmania, Australia, Phytotaxa 358 (2), pp. 117-138 : 133

Ozothamnus reflexus (N.T.Burb.) de Salas & Schmidt-Leb. , comb. & stat. nov.

Type:— AUSTRALIA. Tasmania: “Sea cliffs at Remarkable Cove, 3 mile S. of Safety Cove, Tasman Peninsula”, 18 Dec 1925, R. Melville 2500, (holotype: K; isotypes HO 27070 !, P 00698478 [photo!]) ”

≡ Helichrysum ledifolium subsp. reflexum Burbidge (1958: 270) .

≡ Helichrysum ledifolium subsp. purpurascens (DC.) Burbidge (1958: 270) , non O. purpurascens DC.

≡ Helichrysum purpurascens (DC.) Curtis (1963: 334) non Ozothamnus purpurascens DC.

≡ Ozothamnus purpurascens auct . non DC.

Compact to erect, floriferous shrub to 2 m tall. Branching habit corymbose to columnar. Younger stems and leaves covered in colourless exudate, or exudate not evident, slightly aromatic; older stems with persistent leaf bases. Leaves crowded, petiolate, reflexed or sometimes spreading when young, not normally encrusted with black fungi; lamina linear to narrowly oblong to oblanceolate, widest near the apex, (2.5–)4.9–10.7(–18.1) mm long, (0.6–)0.9–1.7(–2.5) mm wide; adaxial surface moderately tomentose, dark green with midrib sunken; abaxial surface densely tomentose, including the midrib which is not or hardly glabrescent; both surfaces with exudate either not apparent or colourless; base tapering slightly; margins entire, recurved; apex obtuse, rounded. Inflorescence a corymbose panicle, terminal; bracts scarious, ovate, tomentose, apex acute. Involucre campanulate, 4–6 mm long, (1.5–)1.8–2.6(–2.9) mm diameter, normally suffused with pink (especially near the coast); outer involucral bracts with margins scarious, tomentose, viscid with colourless exudate; inner involucral bracts 4.5–5 mm long, spathulate, with a long claw, and a spreading white lamina. Florets (5–)8–12(–14), most commonly 10–12. Achenes papillose-pubescent; pappus barbellate, with ends somewhat clavate. Flowers Dec.–Jan.

Distribution and habitat:—On Permian mudstone and Triassic sandstone in South-eastern Tasmania, from sea level to middle elevations (approximately 500 m above sea level). The main populations are on the foothills of Mt Wellington, the Meehan Range, Rheban/Wielangta area and Tasman Peninsula.

Remarks:—Characterised by its longer leaf size (to 18 mm long), colourless exudate on the leaves, commonly having 8–12 florets per capitulum, and cottony-tomentose indumentum. The name Ozothamnus purpurascens , as well as its combinations under Helichrysum , have been consistently misapplied to this taxon by most authors. However, the type of O. purpurascens comes from montane shrubby woodland in the Great Western Tiers near Cressy (see discussion for details), whereas O. reflexus occurs in south-eastern Tasmania in coastal shrubland and low-elevation dry woodland. Two forms with distinct morphologies are present: a form with long, fine leaves from the Mt Wellington foothills and the Rheban / Wielangta area, and a form with shorter, broader, often highly reflexed leaves, which occurs mainly along the Meehan Range and Tasman Peninsula. However, a breakdown into two separate genetic groups is not supported by the genotyping analysis, which shows that the Rheban populations are more closely related to the Tasman Peninsula ones, and that the Meehan Range and South Hobart populations are genetically distinct.

Selected specimens — AUSTRALIA. Tasmania: Huon Road , 30 Nov 1901, F. A. Rodway 4783 ( NSW) ; Huon Road [Lat/Long for Port Huon], 18 Dec 1902, L. Rodway s.n. ( MEL) ; Near Redgate [Red Gate], 24 Nov 1913, R. A. Black s.n. ( MEL) ; Lindisfarne , 22 Nov 1936, A. M. Olsen s.n. ( HO) ; Huon Road, Hobart , 01 Nov 1937, H.D. Gordon s.n. ( HO) ; Strickland Avenue, Hobart , 20 Nov 1937, A. M. Olsen s.n. ( HO) ; Bellerive, summit of Tunnel Hill on main road, 20 Nov 1942, H.D. Gordon s.n. ( HO) ; Eaglehawk Neck , 18 Dec 1942, W. M. Curtis s.n. ( HO) ; Keens Curry Hill, Hobart , 27 Oct 1945, J. Somerville s.n. ( HO) ; Safety Cove, Tasman Peninsula , 28 Apr 1946, C. Elliott s.n. ( HO) ; Collinsvale , 28 Oct 1948, J. Somerville s.n. ( HO) ; Remarkable Cave, Tasman Peninsula , 08 Nov 1951, W. M. Curtis s.n. ( HO) ; Near Bellerive , 29 Nov 1951, A. Ashby s.n. ( HO) ; Remarkable Cave, S coast of Tasman Peninsula , S of Safety Cove, 18 Dec 1952, R. Melville 2500 ( HO) ; Huon Road, at Turnip Fields , 25 Dec 1952, W. M. Curtis s.n. ( HO) ; [unknown] s.n. (HO); Near Boomer , 24 Nov 1959, W. M. Curtis s.n. ( HO) ; Huon Road between Hobart and Fern Tree , 06 Dec 1959, W. M. Curtis s.n. ( HO) ; Huon Road between Hobart and Fern Tree , 06 Dec 1959, W. M. Curtis s.n. ( MEL) ; Near Copping , 12 Nov 1960, M. E. Phillips s.n. ( NSW) ; Near Copping , on highway, 12 Nov 1960, M. E. Phillips s.n. ( CBG) ; M. E. Phillips s.n. ( CBG) ; Huon Road, Hobart , 31 Dec 1961, T. E. Burns 483 ( HO) ; Track to Remarkable Cave , 03 Feb 1962, M. E. Phillips s.n. ( CBG) ; Mornington. Bellerive , 18 Jun 1969, W. M. Curtis s.n. ( HO) ; Mornington. Bellerive , 18 Jun 1969, W. M. Curtis s.n. ( MEL) ; Hobart area , 22 Jan 1973, D. A. Ratkowsky 38 ( CBG) ; Mount Faulkner, 22 Dec 1973, D. A. Ratkowsky & A. V. Ratkowsky 1039 ( NSW) ; Huon Road, Turnip Fields , 07 Jan 1974, W. M. Curtis s.n. ( HO) ; Hutchins School, Churchill Avenue, Sandy Bay , Hobart , 05 Jan 1975, D. A. Ratkowsky s.n. ( HO) ; Warrane Hills , 12 Oct 1975, M. Allan s.n. ( HO) ; Wielangata , S of Rheban, 04 Jan 1976, M. Allan s.n. ( HO) ; Ridgeway Reservoir , 07 Jan 1976, D. A. Ratkowsky s.n. ( HO) ; Standup Point, N of West Arthur Head, Tasman Peninsula , 14 Sep 1980, W. D. Jackson s.n. ( HO) ; West Arthur Head , S of Port Arthur, 19 Sep 1980, I. Boyer s.n. ( HO) ; Standup Point, Tasman Peninsula , 07 Dec 1980, I. Boyer s.n. ( HO) ; Crescent Bay , S of Safety Cove, 18 Dec 1980, A. E. Orchard 5174 ( NSW) ; Pass Road, Rokeby Hills , 14 Dec 1982, A. M. Buchanan 1004 ( HO) ; Near Maingon Blowhole. Map: Storm Bay , 04 Dec 1983, A. Moscal 4618 ( CANB) ; Wielangta , 22 Nov 1984, M. J. Brown 473 ( HO) ; Fitzgeralds Road (Between Mornington and Cambridge ), 23 Nov 1984, A. M. Buchanan 4537 ( HO) ; Crescent Bay , S of Port Arthur, 05 Oct 1986, P. A. Collier 1718 ( HO) ; Mt Faulkner , 12 Jan 1988, A. Moscal 15431 ( HO) ; Remarkable Cave , 04 Apr 1988, R. Burns 20 ( CBG) ; Above Remarkable Cave , 4.5 km directly S of Port Arthur, 26 Jan 1989, F. E. Davies, P. Ollerenshaw & R. Burns FED 1281 ( PERTH) ; Chestermans Sugarloaf on Wielangta Road , S of Orford, 26 May 1990, R. Burns 153 ( CBG) ; Howrah , 05 Nov 1995, D. Ziegeler 148 ( HO) ; Arthur Highway at Boomer Road turnoff, 27 Dec 1995, A. M. Buchanan 14043 ( CANB) ; Near Remarkable Cave , 27 Dec 1995, A. M. Buchanan 14045 ( HO) ; Huon Road, behind HCC Mountain Park depot, 29 Dec 1995, A. M. Buchanan 14050 ( CANB) ; Tunnell Hill, Hobart , 29 Dec 1995, C. F. Puttock 107 ( CANB) ; Standup Point , 30 Dec 1995, C. F. Puttock 109 ( CANB) ; Huon Road, behind HCC Mountain Park depot, 29 Jan 1996, C. F. Puttock s.n. ( HO) ; Tunnel Hill , 26 Nov 1996, A. M. Buchanan 14341 ( HO) ; Cape Raoul , above the columns, 19 Nov 2003, A. M. Buchanan 16080 ( HO) ; Wielangta Road , 15km S of Orford, 25 Nov 2004, A. M. Buchanan 16271 ( HO) ; Huon Road, 100m S of Hobart City Council Depot , 14 Nov 2006, S. Yalakowski s.n. ( HO) ; Tasman Island , near quarters 3, 23 Sep 2007, P. A. Tyson 435 ( HO) ; Tasman Island, Wfacing cliff tops, 28 Sep 2007, P. A. Tyson 562 ( HO) ; One bay S of Remarkable Cave, 31 Jan 2008, M. Visoiu 439 ( HO) ; Sandspit Forest Reserve , 03 Mar 2012, A. N. Schmidt-Lebuhn 1357 ( CANB) ; Mornington , 09 Dec 2013, M. F. de Salas 432 ( HO) ; M. F. de Salas 433 ( HO) ; Meehan Range NRA, 09 Dec 2013, M. F. de Salas 434 ( HO) ; M. F. de Salas 435 ( HO) ; Mt. Rumney , 09 Dec 2013, M. F. de Salas 436 ( HO) ; South Hobart , 11 Dec 2013, M. F. de Salas 437 ( HO) ; M. F. de Salas 438 ( HO) ; M. F. de Salas 439 ( HO) ; M. F. de Salas 440 ( HO) ; M. F. de Salas 441 ( HO) ; Remarkable Cave , 17 Dec 2013, M. F. de Salas 449 ( HO) ; M. F. de Salas 450 ( HO) ; M. F. de Salas 451 ( HO) ; Rheban , 17 Dec 2013, M. F. de Salas 453 ( HO) ; M. F. de Salas 454 ( HO) ; M. F. de Salas 455 ( HO) ; Fern Tree , 21 Dec 2013, M. F. de Salas 459 ( HO) ; M. F. de Salas 460 ( HO) ; Mornington , 14 Jan 2014, M. F. de Salas 495 ( HO) ; M. F. de Salas 496 ( HO) ; M. F. de Salas 497 ( HO) ; M. F. de Salas 498 ( HO) ; M. F. de Salas 499 ( HO) ; Remarkable Cave , 15 Jan 2014, M. F. de Salas 500 ( HO) ; M. F. de Salas 501 ( HO) ; M. F. de Salas 502 ( HO) ; M. F. de Salas 503 ( HO) ; M. F. de Salas 504 ( HO) ; Rheban , 15 Jan 2014, M. F. de Salas 505 ( HO) ; M. F. de Salas 506 ( HO) ; M. F. de Salas 507 ( HO) ; M. F. de Salas 508 ( HO) ; M. F. de Salas 509 ( HO) ; Lime Bay area, Tasman Peninsula , Dec 1962, [unknown] s.n. ( HO) ; Port Arthur , s.d., J. Bufton 5 ( MEL) ; J. Bufton 11 ( MEL) ; J. Bufton 14 ( MEL) ; J. Bufton 42 ( MEL) ; Bellerive , Jan 1946, W. M. Curtis s.n. ( HO) ; Huon Road, at Turnip Fields , s.d., W. M. Curtis s.n. ( HO) ; Huon Road, at Turnip Fields , s.d., W. M. Curtis s.n. ( HO) ; Huon Road, Fern Tree Bus Terminal , s.d., W. M. Curtis s.n. ( HO) ; Longley , Nov 1929, A. V. Giblin s.n. ( CANB) ; Mount Nelson Road , s.d., A. V. Giblin s.n. ( HO) ; Longley , s.d., A. V. Giblin s.n. ( HO) ; Cape Raoul , Nov 1979, G. Kantvilas s.n. ( HO) ; Huon road on road to Mt. Wellington , s.d., C. E. Lord s.n. ( CANB) ; Bellerive, Hobart , s.d., A. H. S. Lucas s.n. ( NSW) ; Hobart , s.d., A. H. S. Lucas s.n. ( NSW) ; Waterworks, Hobart , s.d., F. A. Rodway 4780 ( NSW) ; Mount Nelson , s.d., F. A. Rodway 4782 ( NSW) ; Mt Wellington , s.d., L. Rodway 404 ( HO) ; Huon Road, Hobart , s.d., L. Rodway 404a ( HO) ; Bellerive , Jan 1912, L. Rodway s.n. ( HO) ; Cascades, Hobart , s.d., L. Rodway s.n. ( HO) ; Safety Cove , Dec 1961, J. Somerville s.n. ( HO) ; Half Moon Bay (Crescent Bay), near Mt Brown , Tasman Peninsula (site D5), Dec 1961, Tasmanian University Sci. Soc., s.n. ( HO) ; Cascades, slope of Mount Wellington , 20 Jan 1920, R. A. Black s.n. ( MEL) .