Furkejuvvon:
| Váldodahkkit: | , , |
|---|---|
| Materiálatiipa: | Recurso digital |
| Giella: | |
| Almmustuhtton: |
Zenodo
2023
|
| Fáttát: | |
| Liŋkkat: | https://doi.org/10.5281/zenodo.7785582 |
| Fáddágilkorat: |
Lasit fáddágilkoriid
Eai fáddágilkorat, Lasit vuosttaš fáddágilkora!
|
Sisdoallologahallan:
- <p><b><i>Russula callainomarginis</i> J.F.Liang & J.Song</b></p><p>Figs 9–10</p><p><b>Material examined</b></p><p>CHINA • Guangdong Province, Zhaoqing City, Dinghushan Biosphere Reserve, on the ground in evergreen broad-leaf forest mainly with Fagaceae trees; 10 Jun. 2018; <i>Y. Song K18061013</i>; GenBank nos: MN275693 (ITS), MN839582 (nLSU), MN839632 (mtSSU), MT085535 (<i>rpb1</i>), MT085659 (<i>rpb2</i>), MT085602 (<i>tef1</i>); GDGM79715 • same data as for preceding; 22 Apr. 2019; <i>Y. Song K19042220</i>; GenBank no: MN839555 (ITS); GDGM79716.</p><p><b>Description</b></p><p><i>Basidiomata</i> medium to large sized. <i>Pileus</i> 6–10 cm in diam., hemispherical to convex when young, turning applanate with depressed center to infundibuliform; surface glabrous, dry, viscid when wet, white to cream (#FFFAFA, #FFFFF0) with reddish brown (#F5DEB3, #F2E0B7) tint; margin slightly undulate and upward. <i>Lamellae</i> adnate to decurrent, unequal with multidymous lamellulae, often forked near stipe and pileus margin, interveined, white at first, turning cream with brown tint (#FEEABA, #FAEDB3) with maturity; edge entire, concolorous. <i>Stipe</i> central, subcylindrical, solid at first, turning hollow with age, 4–6 cm long, white, stained with reddish brown (#F9E197, #F2D782) when old, longitudinally rugulose. <i>Context</i> white. <i>Odor</i> distinct. <i>Spore print</i> whitish.</p><p><i>Basidiospores</i> subglobose to ellipsoid, rarely globose, (40/2/2) (5.4–)5.7–6.3–7.1(–7.4) × (4.9–)5.2– 5.6–6.1(–6.5) µm, [Q = (1.03–)1.04–1.16–1.24(–1.36)], hyaline in 5% KOH; ornamentation amyloid, composed of verrucous to cylindrical warts less than 1 µm in height, some fused into short crests, mostly connected by fine lines forming partial reticulum; suprahilar spot amyloid. <i>Basidia</i> (25–)27– 29.5–32(–34) × 8–9.5–11(–12) µm, clavate, 2- or 4-spored, thin-walled; sterigmata 4–10.5 × 0.8– 1.6 µm. <i>Pleurocystidia</i> (23–)27–43–81(–101) × 5–7.5–10.5 µm, mostly typical fusiform, with obtuse, mucronate or papillate apices, thin-walled, with refractive contents mostly distributed in middle to upper parts, some subcylindrical, arising from deep in subhymenium, weakly positive in SV. <i>Cheilocystidia</i> (23.5–)26–33–39(–41.5) × (5.5–)6.5–7.5–10 µm, fusiform, with obtuse or mucronate apices, thinwalled, with refractive contents mostly at medium parts. <i>Subhymenium</i> pseudoparenchymatous. <i>Lamellar trama</i> composed of numerous sphaerocytes surrounded by connective hyphae, sphaerocytes measuring 10–28 × 7.5–23 µm. <i>Pileipellis</i> composed of ascending to erect hyphae, 100–140 µm thick; hyphae cylindrical, septate, hyaline, thin-walled, 1.5–5 µm wide; terminal cells (8–)10.5–19–35 × 2.5– 3.5–5.5 µm, cylindrical, rarely lageniform, with obtuse apices, hyaline, some incrusted. <i>Pileocystidia</i> (11–)26–55.5–80(–84) × 2–4–6(–7) µm, cylindrical to fusiform, with obtuse, mucronate to papillate apices, with granular refractive contents, unchanging in SV. <i>Stipitipellis</i> composed of cylindrical, septate hyphae measuring 1.5–4 µm wide; terminal cells cylindrical with obtuse apices, hyaline. <i>Caulocystidia</i> (16.5–)30–54–68(–74) × 1.5–4–6.5 µm, cylindrical, obtuse or papillate, with refractive contents. <i>Clamp connections</i> absent in all tissues.</p><p><b>Comments</b></p><p><i>Russula callainomarginis</i> was recently described from China (Song <i>et al.</i> 2022). Collections of this species from DHSBR are mostly in accordance with the original morphological descriptions, except that DHSBR specimens have obviously smaller basidia [(25–)27–29.5–32(–34) × 8–9.5–11(–12) µm] and pileocystidia unchanging in SV (turning dark grey to blackish when first described).</p>