Ozothamnus ledifolius (A. Cunn. ex de Candolle, 1838) Hooker, 1856

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 : 129-130

Ozothamnus ledifolius (A.Cunn. ex) Hooker (1856: 204)

Basionym:— Cassinia ledifolia A.Cunn. ex de Candolle (1838: 155) . Type:— AUSTRALIA. Tasmania: “more elevated parts of mount Wellington near Hobart town, Van Diemen’s Land”, Jan 1819, A. Cunningham 103, (holotype G-DC G00461559 [photo!]).

≡ Helichrysum ledifolium (A.Cunn. ex DC.) Bentham (1867: 630) .

≡ Helichrysum rosmarinifolium var. ledifolium (A.Cunn. ex DC.) Tovey & Morris (1922: 211) .

Compact shrub to 1 m tall, with a corymbose branching habit. Younger stems and leaves covered in bright yellow exudate, sweetly aromatic, especially in warm weather; older stems with persistent leaf bases. Leaves crowded, petiolate, spreading, with older ones reflexed and often encrusted in black fungi; lamina linear to narrowly oblong, widest near the middle, (4.5–)5.5–11.0(–14.2) mm long, (1.0–)1.3–2.2(–2.9) mm wide; adaxial surface thinly to moderately lanate-tomentose, dark green with midrib slightly sunken; abaxial surface obscured by cottony indumentum, stained yellow by exudate in younger leaves with midrib raised, not glabrescent; base tapering slightly; margin entire, slightly recurved but abaxial lamina still visible; apex obtuse and rounded. Inflorescence a corymbose panicle, terminal, with yellowstained tomentose branches; bracts scarious, ovate, stained dark yellow with margins fimbriate and apex apiculate. Involucre turbinate to campanulate, 5–7 mm long, (2.1–)2.5–3.1(–3.3) mm diameter, often suffused dark pink; outer involucral bracts with scarious margins, lightly tomentose, viscid with yellow exudate; inner involucral bracts 4.5–5 mm long, spathulate, with a long claw or petiole, and a spreading white lamina. Florets (8–)9–12(–14). Achenes papillose-pubescent; pappus barbellate, with ends somewhat clavate. Flowers Jan.–Feb.

Distribution and habitat:—Wellington Range, Mt. Field and the Snowy Range, found primarily at elevations above approximately 1000 m above sea level and exclusively on Jurassic dolerite-derived soils. North of Mt. Field, and particularly around the eastern and western margins of the Central Plateau, this taxon can intergrade with O. ericifolius . See discussion under O. purpurascens .

Remarks:—Recognised by its larger leaf size, more compact habit, and leaves with bright yellow exudate and abundant, appressed tomentose indumentum. It commonly has 9–12 florets per capitulum.

Selected specimens:— AUSTRALIA. Tasmania: Mount Wellington , 19 Jan 1902, R. Helms s.n. ( NSW) ; Collins Bonnet , 14 Feb 1911, L. Rodway s.n. ( HO) ; Mt. Wellington , 15 Jan 1915, J. B. Cleland s.n. ( AD) ; Mount Wellington , 07 Feb 1922, R. A. Black s.n. ( MEL) ; Mt. Wellington , 22 Jan 1928, J. B. Cleland s.n. ( AD) ; Mt. Wellington side, 23 Jan 1928, E. H. Ising s.n. ( AD) ; Mount Wellington , above springs, 12 Apr 1931, [unknown] 4791 ( NSW) ; Mt Wellington , 17 Jan 1932, F. H. Long 1106 ( HO) ; Mount Wellington , 17 Jan 1932, O. Rodway s.n. ( HO) ; Pinnacle, Mount Wellington , 30 Jan 1937, G. L. R. Davis & H. C. F. Davis s.n. ( NSW) ; Mount Wellington , 31 Jan 1937, A. M. Olsen s.n. ( HO) ; Mt Wellington , 27 Feb 1942, H.D. Gordon s.n. ( HO) ; Fern Tree track below Springs, Mount Wellington , 31 Mar 1945, Gordon s.n. ( HO) ; Fern Tree , 07 Nov 1945, Burnett s.n. ( HO) ; Mount Wellington, near turn off to Collins Bonnet Track , 08 Feb 1947, J. Somerville s.n. ( HO) ; Mt Wellington , 19 Jan 1949, N. T. Burbidge 3187 ( CANB) ; Middle slopes of Mount Wellington , 19 Jan 1949, N. T. Burbidge s.n. ( HO) ; Mt. Wellington , 02 Mar 1951, E. Gauba TAS 412 ( CBG) ; Mount Wellington , 25 Jan 1952, W. M. Curtis s.n. ( HO) ; Mount Wellington , 25 Jan 1952, W. M. Curtis s.n. ( HO) ; Foot of Mount Wellington , 10 Dec 1952, R. Melville 2273 ( MEL) ; Mount Wellington , 06 Dec 1959, W. M. Curtis s.n. ( HO) ; Mount Wellington, near Hobart , 06 Dec 1959, W. M. Curtis s.n. ( MEL) ; Mount Wellington , 28 Dec 1959, W. A. Tobias s.n. ( HO) ; Mt. Wellington , on slopes, 09 Nov 1960, M. E. Phillips 431 ( CBG) ; M.E. Phillips s.n. (CBG); Mt. Wellington , at summit, 16 Jan 1962, M. E. Phillips s.n. ( CBG) ; Mount Wellington , 24 Jan 1962, D. V. Curtis s.n. ( MEL) ; Mt. Wellington, Hobart , 03 Jan 1963, P. J. Darbyshire 1070 ( CANB) ; Mt. Wellington , at junction of road & dolerite sill, 28 Nov 1965, M. E. Phillips s.n. ( CBG) ; Mt Wellington plateau, 27 Jan 1968, J. H. Hemsley 6518 ( HO) ; Mt. Field National Park ( Lake Belcher track), 02 Feb 1969, E. M. Canning 2254 ( CBG) ; Mt Field East , 10 Jan 1978, J. M. B. Smith 378 ( HO) ; K Col, Mt Field National Park , 19 Jan 1979, A. M. Buchanan 12 ( HO) ; Mt Wellington , 14 Jun 1980, I. Boyer s.n. ( HO) ; Mount Wellington , 14 Jun 1980, I. Boyer s.n. ( HO) ; The Lectern, Mount Wellington , 13 Jan 1981, A. Brown 95 ( HO) ; Collins Cap Track near Big Bend. Mount Wellington , 13 Jan 1981, A. Brown 116 ( MEL) ; Mt Wellington , 31 Dec 1982, C. Totterdell s.n. ( CANB) ; Mt Wellington road, 1 km uphill from The Springs, 26 Nov 1988, R. Burns 69 ( CBG) ; Mt Wellington , 02 Dec 1988, R. W. Purdie 3553 ( CBG) ; Mt. Wellington, 9 km NNW along Pinnacle Road from junction with Huon Highway, 12 Jan 1989, F. E. Davies & P. Ollerenshaw 759 ( AD) ; Mount Field National Park. Rocky slope between Clemes Tarn and Naturalist Peak, 15 Feb 1989, P. S. Short 3433 ( MEL) ; 2km ENE of Nevada Peak , 24 Feb 1990, P. A. Collier 4582 ( HO) ; Mt Wellington, near Big Bend , start of Collin Gap track, 28 Dec 1995, C. F. Puttock 101 ( CANB) ; Mt Wellington, near Big Bend , 0.4 km along Collin Gap track, 28 Dec 1995, C. F. Puttock 103 ( CANB) ; C. F. Puttock 104 ( CANB) ; Between The Springs and Chalet, Mt Wellington , 28 Dec 1995, C. F. Puttock 105 ( CANB) ; Dead Island, Mt Wellington , 07 May 1996, A. M. Buchanan 14151 ( HO) ; Old cable tower near Maydena , 20 Dec 1999, B. French BF 388 ( HO) ; Summit of Mt Wellington , 5km W of Hobart. In and around summit viewing area, 20 Jan 2000, R. J. Bayer 11 ( HO) ; Dead Island, Mt Wellington , 06 Feb 2000, A. C. Rozefelds 1622 ( HO) ; Rocking Stone Track, Mt Wellington (Wellington Park), 19 Apr 2007, M. Visoiu 330 ( HO) ; Mount Wellington , 05 Mar 2012, A. N. Schmidt-Lebuhn 1369 ( CANB) ; Mt Wellington , 09 Jan 2014, M. F. de Salas 466 ( HO) ; M. F. de Salas 467 ( HO) ; M. F. de Salas 468 ( HO) ; M. F. de Salas 469 ( HO) ; M. F. de Salas 470 ( HO) ; M. F. de Salas 471 ( HO) ; M. F. de Salas 472 ( HO) ; M. F. de Salas 473 ( HO) ; M. F. de Salas 474 ( HO) ; M. F. de Salas 475 ( HO) ; Mount Wellington , 1 Jan 1893, R. C. Gunn s.n. ( HO) ; Mount Wellington , 7 Jan 1841, [unknown] s.n. ( NSW) ; Near Fern Tree Inn, Huon Road , 31 Dec 1877, A. Simson 839 ( HO) ; Top [of] Mount Wellington , 2 Jan 1888, W. A. Weymouth 20 ( MEL) ; Mount Wellington , 31 Dec 1890, E. Oakden 213 ( MEL) ; Waterworks, Hobart , s.d., [unknown] 4781 ( NSW) ; Mount Wellington , s.d., R. A. Black s.n. ( MEL) ; Mount Wellington , s.d., E. Cheel s.n. ( NSW) ; Mount Wellington , s.d., A. Cunningham s.n. ( MEL) ; Mt Field East , Jan 1944, W. M. Curtis s.n. ( HO) ; Mount Wellington , Oct 1934, W. M. Curtis s.n. ( HO) ; Mt Wellington , above springs, s.d., W. M. Curtis s.n. ( HO) ; Mt. Wellington , above “The Springs”, s.d., W. M. Curtis? s.n. ( CBG) ; Seagers Lookout, Mount Field , s.d., A. J. Ewart s.n. ( MEL) ; Mount Wellington , s.d., W. V. Fitzgerald s.n. ( NSW) ; Mt Wellington , near summit, s.d., A. M. Gray s.n. ( CANB) ; Mount Wellington , s.d., T. A. Gulliver & B. Gulliver 30 ( MEL) ; Mount Wellington , s.d., V. Jacobs 73 ( MEL) ; V. Jacobs 75 (MEL); Wombat Moor, Mt Field National Park , s.d., G. Kantvilas s.n. ( HO) ; Mount Wellington , s.d., A. H. S. Lucas s.n. ( NSW) ; Mount Field East , s.d., J. H. Maiden s.n. ( NSW) ; Mount Wellington , s.d., J. H. Maiden s.n. ( NSW) ; Mount Wellington , s.d., J. H. Maiden & R. H. Cambage s.n. ( NSW) ; Mt. Wellington , s.d., C. F. Puttock 9 ( CANB) ; Springs, Mt Wellington , s.d., L. Rodway 403 ( HO) ; Mount Wellington , s.d., L. Rodway s.n. ( HO) ; Mount Wellington , s.d., H. M. R. Rupp s.n. ( MEL) ; Top of Mount Wellington , s.d., A. Simson s.n. ( MEL) ; Mount Wellington , s.d., C. Stuart s.n. ( MEL) ; Mount Wellington , s.d., Sullivan & Coates s.n. ( MEL) ; Mount Wellington , Jan 1981, G. C. Wade s.n. ( HO) ; Mt Wellington , s.d., J. B. Williams s.n. ( NE) ; Huon Road , May 1894, L. Rodway s.n. ( HO) ; Huon Road , 1879, L. Rodway s.n. ( HO) .