Skip to main content

Lemon-chrome porecrust (Luteoporia flavula) similar to Luteoporia straminea and pointing crust (Xylodon subpunctus) similar to Xylodon punctus

Dlium Lemon-chrome porecrust (Luteoporia flavula) similar to Luteoporia straminea and pointing (Xylodon subpunctus) similar to Xylodon punctus

NEWS - Lemon-chrome porecrust (Luteoporia flavula C.L. Zhao & H.M. Zhou, sp. nov.) similar to Luteoporia straminea and pointing crust (Xylodon subpunctus C.L. Zhao & H.M. Zhou, sp. nov.) similar to Xylodon punctus, two new species of wood-dwelling fungi were described from the Yunnan-Guizhou Plateau in southwest China.

Luteoporia F. Wu, Jia J. Chen & S.H. He. (2016) with Luteoporia albomarginata F. Wu, Jia J. Chen & S.H. He as the type species showed a monomitic hyphal system with generative hyphae containing clamp connections, and hyaline and smooth basidiospores.

Other species found in China are Luteoporia citriniporia Z.B. Liu & Yuan Yuan (2020), Luteoporia lutea (G. Cunn.) C.C. Chen & Sheng H. Wu (2021) and Luteoporia straminea C.L. Zhao (2023), while Luteoporia citriniporia is exclusively found in Europe, Luteoporia lutea is found in Oceania and the latter two species were originally described in southwest China.

Xylodon (Pers.) Gray (1821) is characterized by Xylodon quercinus (Pers.) (1821: 649) distributed in various habitats worldwide, including temperate, tropical and subtropical regions. A number of species have been reported in China.

Luteoporia flavula is characterized by purple tissue in KOH, in contrast to the reddish color of L. straminea. Basidiomata annual, resupinate, ceramic, odorless or tasteless when fresh, becoming hard when dry, up to 1 cm long, 1.2 cm wide, 200–250 μm thick when dry. Hymenophore odontoid, lemon chrome when fresh, curry yellow when dry, tissue turns purple in KOH. Sterile margin, narrow, and light lemon colored.

Generative hyphae monomitic with clamp joints, hyaline, thin to thick walled, IKI-, CB-. Subicular hyphae unbranched, 2.5–4 μm in diameter; subhymenial hyphae unbranched, 2–4 μm in diameter; abundant yellow to yellowish brown gelatinous substance present between subhymenium. Hymenial cystidia subuliform, hyaline, thick walled, 15.5–30 × 3.8–5.7 μm, no cystidioles; basidia 4-celled, clavate, with basal clamp joints, 24–29 × 4–5.2 μm.

Basidiospores oblong ellipsoid, hyaline, thin-walled, smooth, sometimes with guttules, IKI-, CB-, (3.4–)4–5.2(–5.5) × (2.2–)2.3–3.2(–3.4) μm, L = 4.56 μm, W = 2.74 μm, Q = 1.63–1.71 (n = 90/3).

Xylodon subpunctus differs from X. punctus in smaller basidiospores (2–4 × 1.5–2.5 μm vs. 5.5–7.2 × 2.5–3.6 μm). Basidiomata annual, regenerating, odorless and tasteless, keratinous when fresh, hard keratinous when dry, up to 4 cm long, 2 cm wide, 20–50 μm thick. Hymenium surface is powdery, shiny when dry, cracked. Sterile boundary is indistinct.

Hyphae monomitic, generative with clamp joints, hyaline, thin-walled, often branched, intertwined, IKI-, CB-, 1.8–4.4 μm in diameter; tissue unchanged in KOH; subhymenial hyphae densely covered by larger, irregular crystals; basal layer of hyphae arranged regularly.

Cystidia of two types: (1) occasional capitate cystidia, hyaline, thin-walled, slightly narrowed at the neck, with rounded apex, 27–34.2 × 3–3.5 μm; (2) fusiform cystidia often, hyaline, thin-walled, 20.3–26.8 × 5.3–6.4 μm; basidia 4-celled, stalked to clavate, with basal clamp connection, 10–17.4 × 2–5.2 μm

Basidiospores ellipsoid to oblong, hyaline, thin-walled, smooth, IKI-, CB-, (5.3–)5.5–7.2(–7.4) × (2.6–)2.5–3.6(–4.5) μm, L = 6.33 μm, W = 3.00 μm, Q = 2.08–2.13 (n = 60/2).

Original research

Hong-Min Zhou, Xin Yang, Yu-Yun Wang & Chang-Lin Zhao (2024). Morphological and molecular identification of two new wood-inhabiting macrofungi (Basidiomycota) from Yunnan-Guizhou Plateau, China. Phytotaxa 674 (1): 001–017, DOI:10.11646/phytotaxa.674.1.1

Dlium theDlium
Labels:

Popular Posts

Humpback whales (Megaptera novaeangliae) manufacture bubble-nets as tools to increase prey intake

NEWS - Humpback whales ( Megaptera novaeangliae ) create bubble net tools while foraging, consisting of internal tangential rings, and actively control the number of rings, their size, depth and horizontal spacing between the surrounding bubbles. These structural elements of the net increase prey intake sevenfold. Researchers have known that humpback whales create “bubble nets” for hunting, but the new report shows that the animals also manipulate them in a variety of ways to maximize catches. The behavior places humpbacks among the rare animals that make and use their own tools. “Many animals use tools to help them find food, but very few actually make or modify these tools themselves,” said Lars Bejder, director of the Marine Mammal Research Program (MMRP), University of Hawaii at Manoa. “Humpback whales in southeast Alaska create elaborate bubble nets to catch krill. They skillfully blow bubbles in patterns that form a web with internal rings. They actively control details such ...
Read more

Javanese grasshopper (Valanga nigricornis)

Wooden grasshopper or Javanese grasshopper ( Valanga nigricornis ) is an animal species of Acrididae, grasshoppers that have at least 18 subspecies, insects with very wide diversity in color and size, sexual dimorphism in which females are larger in size and paler in color. V. nigricornis in males has a length of 45-55 millimeters and females 15-75 mm. The head is square and green or yellow or brown or black in color. A pair of antennas has a black color. The eyes are large and gray or white or brownish. The hind legs are very large and have a green or yellow or brown or black color, plain or brindle. The limbs have two rows of large and long spines with black tips facing backward. The wings have a length exceeding the belly, a rough surface and are brown or green or yellow or black in color with pulse lines forming spaces filled with black color. The hind wings are rose red which will be visible when flying. Nymphs are pale green or yellow or brown or blackish in color. Javanese gr...
Read more

Purwaceng (Pimpinella pruatjan)

Purwaceng or purwoceng or antanan gunung or Viagra of Java ( Pimpinella pruatjan or Pimpinella priatjan ) are small termas growing horizontally in Apiaceae, growing in villages on Dieng Plateau, Central Java Province, Indonesia, at 1,500 to 2,000 meters above sea level, the roots have medicinal properties for aphrodisiacs and are usually processed in powder form for a mixture of coffee or milk. P. pruatjan grows flat on the ground but does not propagate, small leaves are reddish green for 1-3 cm in diameter. This plant is only found in Java and grows in high mountain areas. A low population where industrial demand is very high results in increasingly scarce. Another place that is likely to become a purwaceng habitat is the Iyang Mountains and the Tengger Mountains in East Java Province. Efforts to multiply and cultivate have a big problem where these plants have difficulty producing seeds. In vitro propagation research through tissue cultivation has been carried out to overcome ...
Read more