Leprocaulon arbuscula (Nyl.) Nyl.

Bajpai, Rajesh, Upreti, D. K. & Nayaka, Sanjeeva, 2018, The lichen genera Lepraria (Stereocaulaceae) and Leprocaulon (Leprocaulaceae) in India, Phytotaxa 356 (2), pp. 101-116 : 111

2. Leprocaulon arbuscula (Nyl.) Nyl.

Thallus terricolous or on decaying plant remains over rocks; primary thallus not seen; pseudopodetia attached by rooting base, upwards dendroid branched; branches flattened or dorsiventral, in one plane, soft, fragile, greyish white to yellow-brown; phyllocladial granules on ultimate branchlets, often dissolute into powdery particles. Pseudopodetia anatomically differentiated into central axis of longitudinally compact hyphae; and an outer mantle composed of loose intricate hyphae; photobiont on surface of psedopodetium or in powdery granules enveloped by hyphae.

Chemistry: Atranorin, protocetraric, grayanic, didymic acids and two unknown substances.

Ecology and Distribution: This species is reported from Australia, Bhutan, Brazil, China, Colombia, Cuba, Korea, Nepal. In India the species grows over bark and twigs between altitudes of 1500–2500 m.

Specimens examined: HIMACHAL PRADESH: Sirmaur district, Renuka Arate, Reserve Forest alt, 2010 m, on Rhododendron, Srivastava R 02-07-2000, 20-066755, UTTARAKHAND: Chamoli district, Durmi forest area, alt 2000 m, on tree trunk, 30-08-2006, Upreti DK & Party 06-10687, Gwaldam Bhagunam, alt 1550 m, on Rhododendron , 04-05-2015, Rawat S 15-027375, 27362, Pithoragarh district, Gori ganga catchment, Majthan, alt 1800 m, on bark, 09-06-2000, Pant V 20-087144,20-067930, Thali area, alt 2300 m, 20-67540, Deochula, alt 1800 m, Ghandhura east, 20-67916, 20-067982, 20-067963, Daphuyadhura, alt 2200 m, on bark, 07-06-2000, Pant V 20-067595, Narayan Nagar alt 1500 m, on bark, Arora DP 16-05-1977, sn, Askot Sandev Botanical Hot spot, Deochula, alt 2000 m, on bark, 12-04-2002, Pant V 02-0103987, Sandev Botanical Hot spot, Lamaghash, alt 1550 m, on bark, 28-09-2002, Pant V 02-000936, near Adichaura, alt 2300 m, on bark, 28-09-2002, Pant V 02-0103911, Rudraprayag district, Dugalbitta forest area towards, Mukku, alt 2500 m, on bark, 29-08-2006, Upreti DK & Party 06-085668, out side Indian specimen examined: NEPAL: East Nepal, Mewakhala valley, above Taukhu village alt 2500 m, on bark, 25-05-1953, Awasthi DD 53-02209.