Agaricales » Biannulariaceae » Anupama

Anupama indica

Anupama indica K.N.A. Raj, K.P.D. Latha & Manim., in Raj et al., Mycol. Progr. 18(5): 661 (2019)

 

Etymology: The specific epithet refers to India, the country where this species was first discovered.

Diagnosis: Habit tricholomatoid. Pileus surface brownish, hygrophanous and becoming paler, glabrous and somewhat waxy. Lamellae sinuate, orange-gray, crowded, furcate, with concolorous edges. Stipe central or slightly eccentric, tapered towards the base, solid, with white mycelial cords at the base; surface densely appressed-fibrillose all over, orange-gray. Spore print grayish white. Odor pleasant, rather fruity. Basidiospores subglobose, obovoid or somewhat lacrymoid, smooth, hyaline or pale yellow, inamyloid, acyanophilic. Pleurocystidia scarce. Cheilocystidia abundant, versiform. Pileipellis a cutis. Clamp connections observed on all hyphae. nrITS, nrLSU, and rpb2 sequences distinctive.

Basidiocarps small to medium-sized, tricholomatoid. Pileus 1558 mm diam., convex when young, becoming broadly convex to plano-convex or almost applanate with or without a low, broad umbo occasionally surrounded by a shallow depression at maturity; surface brownish orange (5C4, 6C3/OAC799, OAC669) or light brown (6D3/OAC641) when young, becoming orange-gray (6B2/OAC676) and finally brownish gray (7C2/OAC613), hygrophanous and becoming paler, glabrous and somewhat waxy to the naked eye, finely pruinose under a lens; margin almost inrolled when young, becoming incurved to somewhat decurved with age, rather lobate. Lamellae sinuate, orange-gray (6B2/OAC676) when young, becoming pale orange (5A3/OAC792) or orange-gray (5B2, 5B3/OAC793) with age, up to 6 mm wide, crowded, furcate, with lamellulae in several tiers; edge initially entire, becoming crenate or wavy, concolorous with the sides. Stipe 1263 × 317 mm, central or slightly eccentric, terete or slightly compressed, tapered towards the base, solid; surface densely appressed-fibrillose all over, orange-gray (5B2/OAC808) or paler all over; base with white tomentum and long, white, and subterranean mycelial cords. Context up to 5 mm wide, white, soft. Odor pleasant, rather fruity. Taste not distinctive. Spore print grayish white (1B1/OAC907).

Basidiospores 34(4.5) × (2)2.53(3.5) (3.54 ± 0.45 × 2.94 ± 0.23) μm, Q = 1.01.6, Qm = 1.20, subglobose, obovoid or somewhat lacrymoid, smooth, hyaline or pale yellow, thinwalled, inamyloid, acynophilous, showing a Bnodulose^ type hilum in scanning electron microscope images. Basidia 1929 × 47 μm, clavate, hyaline or pale yellow, thin-walled, inamyloid, without siderophilous granules, four-spored; sterigmata up to 4 μm long. Lamella-edge heteromorphous. Cheilocystidia 2581 × 3.55 μm, abundant, versiform: flexuous, cylindrical, cylindrical with a mucronate apex and a bulbous base, lageniform or clavate, with a pale yellow wall pigment, thin-walled. Pleurocystidia intermixed with basidioles, 1235 × 45 μm, scarce, versiform: fusiform, lageniform, flexuous, cylindrical or cylindrical with a mucronate apex, with a pale yellow wall pigment, thin-walled. Pseudocystidia absent. Lamellar trama subregular; hyphae 416 μm wide, with a pale yellow wall pigment and fine yellowish brown encrustations, thin- to slightly thick-walled, inamyloid. Pileus trama interwoven: hyphae 614 μm wide, thin-walled, with a pale yellow wall pigment, inamyloid. Pileipellis a cutis; hyphae 38 μm wide, with pale brownish yellow plasmatic contents and yellowish brown encrustations, thin- to slightly thick-walled. Stipitipellis a disrupted cutis; hyphae 39 μm wide, thin-walled, with a pale yellow wall pigment, inamyloid. Caulocystidia absent. Clamp connections observed on all hyphae.

Habitat: In small groups, occasionally scattered singly on the soil under bamboo (Bambusa striata). Distribution: India, Kerala State.

Index fungorum number: IF828253

 

Figure 1. Maximum likelihood phylogram based on a combined nrLSU and rpb2 sequence data matrix showing the generic placement of Anupama within the Biannulariaceae. Values at nodes indicate bootstrap and posterior probability support. MLB and BPP values 50% and 0.5 respectively are shown

 

Figure 2. Maximum likelihood phylogram depicting the taxonomic position of Anupama among other genera of Biannulariaceae using a combined sequence data matrix of nrITS, nrLSU, and rpb2. Values at nodes indicate bootstrap and posterior probability support. MLB and BPP values 50% and 0.5 respectively are shown

 

Figure 3. Anupama indica (CAL 1725, holotype). A. Basidiocarps in their natural habitat. Scale bar: A = 10 mm

 

Figure 4 Anupama indica (CAL 1725, holotype). a Basidiospores. b SEM image of basidiospore showing the Bnodulose^ type hilum. c Basidium. d Pleurocystidia. e Lamella-edge showing cheilocystidia. f Cheilocystidia. g Pileipellis. h Stipitipellis. i Clamp connection on the hyphae of pileipellis. Scale bars: a, cf, i = 10 μm; b = 1 μm; gh = 20 μm

 

Reference:

Raj, K. N. A., Latha, K. P. D., Leelavathy, K. M., & Manimohan, P. 2019. Anupama: a new genus of Biannulariaceae (Agaricales) from tropical India. Mycological Progress, 18(5), 659669. doi:10.1007/s11557-019-01479-1

 

About Basidiomycota

The webpage Basidiomycota provides an up-to-date classification and account of all genera of the phylum Basidiomycota.

 

Supported by 

Thailand Science Research and Innovation (TSRI)

project entitled:

"Macrofungi diversity research from the Lancang-Mekong Watershed and surrounding areas"

(Grant No. DBG6280009)

Contact

  • Email: basidio.org@yahoo.com
  • Addresses:
    Mushroom Research Foundation, 292 Moo 18, Bandu District,
    Muang Chiangrai 57100, Thailand
  • The State Key Lab of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No.3 1st Beichen West Rd., Chaoyang District, Beijing 100101, P.R. China


Published by the State Key Lab of Mycology, Institute of Microbiology, Chinese Academy of Sciences and
Mushroom Research Foundation
Copyright © The copyright belongs to the Curators. All Rights Reserved.