Heterodermia galactophylla (Tuck.) W.L. Culb., Bryologist 69: 482 (1967) Parmelia ciliaris β galactophylla Tuck., Proc. Amer. Acad. Arts Sci. 1: 224 (1847) Anaptychia galactophylla (Tuck.) Trevis. , Flora 44: 52 (1861) Magnolia Press The lichen family Physciaceae in Thailand-II. Contributions to the genus Heterodermia sensu lato Mongkolsuk, Pachara Meesim, Sanya Poengsungnoen, Vasun Buaruang, Kawinnat Schumm, Felix Kalb, Klaus Phytotaxa 2015 2015-11-20 235 1 448 450 3L968 (Tuck.) W. L. Culb., Bryologist W. L. Culb., Bryologist Tuck. [178,856,1918,1943] Lecanoromycetes Physciaceae Heterodermia Fungi Caliciales 49 Ascomycota species galactophylla     Parmelia ciliaris β galactophyllaTuck., Proc. Amer. Acad. Arts Sci.1: 224 (1847).; Type:— U.S.A. Maine, ex herb. Oakes( holotype, FH-Tuck n.v.);   Anaptychia galactophylla(Tuck.) Trevis., Flora 44: 52 (1861).  50• Phytotaxa235 (1) © 2015 Magnolia Press  MONGKOLSUK ET AL. Thallus foliose to subfruticose, usually attached to the substrate, forming rosettes or tufts of apically ascending lobes, 3–5 cmwide, but sometimes coalescing to form coloniesup to 17 cm. Lobes 0.4–2.5 (–8.0 at sorediate tips) mm wide, sublinear, spathulate or paddle-shaped, convex, rarely branched, ascending or suberect, partially imbricate, with rounded apices when non-sorediate. Upper surface white to grayish white or seldom glaucous gray, sorediate; soredia on the undersides of reflexed and erect and widened lobe tips; marginal rhizines whitish to somewhat darkened, usually simple to furcate, but becoming thyrsiformly ramified with age. Medulla white. Lower surface ecorticate, arachnoid, uniformly white (South American material partly yellow-brown). Apothecia very rare, not present in Thai material, subterminal to terminal on ascending lobes, substipitate, 1–2.5 (–3) mm wide; margin crenate or lobulate, ciliate; disc dark brown, densely white pruinose. Ascospores Polyblastidia- type, narrowly ellipsoidal to fusiform, with 2–3 sporoblastidia, 31–35 × 13–16 µm. Pycnidia not seen. Chemistry: Cortex K+ yellow, C–, KC–, P+ yellow; medulla K+ yellow, C–, P–; pigmented lower surface K+ violet; containing atranorin (major), zeorin (major), japonene (submajor to minor).   Distribution and habitat:—Occurs on the twigs of trees and shrubs in a garden at 750–800 mabove sea level; also in North, Central and South America, Africa and Asia.   Remarks:—This lichen is characterized by the elongate lobes without cilia on the upper surface, soralia beneath the widened and reflexed lobe apices and a chemistry without depsidones. We could find no mention of apothecia for this species in the literature, but in our vast collections from South America we have located one fertile specimen (herb. Kalb 37797). Probably,  H. galactophyllais the sorediate counterpart of  H. trichophora(Kurok.) Trass, as the two species have the same chemistry.   Material reported from   Thailand:— Chiang Mai: Mushroom Research Centrealong road to Pae, on bark in  Camelliagarden in forest remnants,  750–800 m, 19°07'11'' N, 98°44'01'' E,  1–3 July 2004, Aptroot 61331 ( ABL). ( Aptroot & al. 2007: 104).  Specimens examined:  BRAZIL. Minas Gerais: Serra da Mantiqueira; above Vila Monte Verde, ca.  17 kmSE of Camanducaia, in a very disturbed montane rainforest,  1800 m, 22°52' S, 46°02' W,  3 July 1979,  K. Kalb & G. Plöbst(herb. Kalb 37797)—  BRAZIL. Mato Grosso: Serra dos Coroados; Buriti, nature reserve of the Protestant school of Buriti, ca.  6 kmSW of Buritiin a submontane rainforest,  600 m, 15°30’ S, 55°40’ W,  8 July 1980,  K. Kalb & m, Marcelli(herb. Kalb 37800)—  BRAZIL. Rio de Janeiro: Serra da Mantiqueira; Itatiaia, Parque National do Itatiaia, in a humid and dark primary rainforest,  1100 m, 22°20’ S, 44°35’ W,  21. July 1978,  K. Kalb & G. Plöbst(herb. Kalb 39358)—  BRAZIL. São Paulo: Serra do Mar; Serra de Paranapiacaba, ca. 80 kmSW of São Paulo, in a light and humid rainforest along the Rio Juquiá,  700 m, 24°00’ S, 47°20’ W,  24 March 1978,  K. Kalb & G. Plöbst(herb. Kalb 39361). [320,811,1983,2004] United States of America Oakes Type 49 1 Maine holotype 2004-07-01 2004-07-03 2004-07-01 ABL Thailand 775 19.119722 Pae 21 98.733604 Mushroom Research Centre 50 1 Chiang Mai 1979-07-03 K, G Brazil 1800 -22.866667 Serra da Mantiqueira 1258 -46.033333 50 1 Minas Gerais 1980-07-08 K Serra dos Coroados Brazil 600 -15.5 Buriti 1284 -55.666668 Buriti 50 1 Mato Grosso 1978-07-21 K, G Brazil Serra da Mantiqueira 1100 -22.333334 Parque National do Itatiaia 1260 -44.583332 Itatiaia 50 1 Rio de Janeiro 1978-03-24 K, G de Paranapiacaba Brazil Serra do Mar 700 -24.0 Rio Juquia 1253 -47.333332 Serra de Paranapiacaba 50 1 Sao Paulo