Dacryopinax martinii Lowy (1971: 127)

Castro-Santiuste, Sandra, Sierra, Sigfrido, Guzmán-Dávalos, Laura, Cifuentes, Joaquín, Evans, Thomas, Martínez-González, César Ramiro, Sizzo, Hernán Alvarado- & Luna-Vega, Isolda, 2020, Dacryopinax (Fungi: Dacrymycetales) in Mexico, Phytotaxa 446 (1), pp. 6-22 : 14-15

Dacryopinax martinii Lowy (1971: 127) . Figs. 1c and 4

Basidiome up to 20 mm long, pileate, stipitate to substipitate, gelatinous-subcartilaginous, light to intense salmon pink when fresh, turning yellowish orange on drying, lighter at the tip. Pileus up to 10 mm wide, spathulate to flabelliform, with wavy margin in mature specimens, glabrous. Stipe 15 × 3–4 mm, in some cases substipitate, glabrous, yellowish red. Hymenium unilateral, smooth or with small undulations.

Basidiospores 9–11 (–12) × 4–5 µm, Q = 1.8–3.0, curved-cylindrical to elongated, aseptate or uniseptate, with thin septum, yellowish, smooth, thin-walled; germination by germ tube. Probasidia 34–47 × 4–5 µm, cylindrical. Metabasidia 37–45(–47) × 4–5 µm, narrowly claviform, becoming bifurcate, aseptate, hyaline; sterigmata 9–13 × 3–4 µm, cylindrical, hyaline, guttulate. Context hyphae up to 3 µm wide, some wider near the septa, known as bulbous septa.

Specimens examined:— MEXICO. Jalisco: Municipality of Talpa de Allende, W of the Cumbre de los Arrastrados, Ojo de Agua del Cuervo, 1750 m, 20°13’1” N, 104°45’22” W, 1 October 2005, L. Guzmán-Dávalos 9855 (IBUG!), M.G. Torres-Torres 682 (IBUG!).

Habit, habitat, and distribution:—Caespitose, on decaying wood, in cloud forest ( Abies , Acer , Podocarpus ), 1750 m elevation. Until now, only known from Jalisco state.

Remarks:— Lowy (1971) reported basidiospores of (8–) 9–12 × 4.5–5.5 µm, subcylindrical to subovoid, with one septum, and germination via a germ tube, and hyphae with bulbous septa, all of which concurred with the characters of the examined specimens. It was originally described from a specimen from Colombia (Anchicayá), in high tropical forests; it was also found in Brazil (Paraná) in tropical vegetation. This represents a new record for Mexico in cloud forest.

Figures

FIGURE 1. Geographic records of some species of Dacryopinax known in Mexico, black dots. a D. elegans, b D. lowyi, c D. martinii, and d D. spathularia.

FIGURE 4. Dacryopinax martinii. a–b Fresh basidiomes (a, photo by Fanti; b, photo by Guzmán-Dávalos). c Dried basidiomes (photo by Sierra). d Rehydrated basidiomes (photo by Sierra). e Aseptate to uniseptate basidiospores (photos by Sierra). f Bulbous septa (photos by Sierra). g Aseptate basidiospores (SEM) (photo by Castro-Santiuste). h Uniseptate basidiospore (SEM) (photo by Castro-Santiuste). i Uniseptate basidiospore with two germ tubes (gt) (SEM) (photo by Castro-Santiuste).