Termitomyces microcarpus

Termitomyces microcarpus (Berk. & Broome)

Index fungorum number: 291355

Pileus 1.0-1.5 cm diam., conic then plane to uplifted when mature, with small obtuse perforatorium; surface white to cream and dark or yellowish-brown at the center when mature, smooth and glabrous, margin straight, often radially splitting when mature. Lamellae free, white to creamy, 1 mm wide, crowded with lamellulae. Stipe 4-6 cm long, 0.2-0.5 cm wide, central, cylindrical, surface white to cream, smooth and glabrous. Annulus absent. Pseudorhiza forming a root-like at stipe base under ground level. Spore deposit white. Basidiospores 4.5-8 x 3-5 μm, ovoid to ellipsoid; smooth and thin-walled, inamyloid. Basidia 15-30 x 5-10 μm, clavate to subcylindric, bearing four sterigmata, inamyloid. Hymenophoral trama regular, 50-60 μm wide, inamyloid. Cheilocystidia rare, 30-40 x 10-17.5 μm, clavate to pyriform, smooth and thin-walled, inamyloid. Pleurocystidia rare, 25-35 x 10-17.5 μm, similar to cheilocystidia. Pileipellis a repent epicutis of narrow, radial hyphae, 2.0-4.0 μm diam. (Figure 4.D-F)

Specimens examined: Nakhon Ratchasrima: Wang Nam Khiao, Sakaerat environmental research station, in dry evergreen forest (TERM001, TERM002), Nakhon Ratchasrima: Wang Nam Khiao, Wang Nam Khiao Forestry Student Training Station, in dry dipterocarp forest (TERM003, TERM007, TERM014), Trang: Kachong, oil palm plantation (TERM047, TERM057, TERM058, TERM059, TERM060, TERM061).