Humidicutis pindorama J. S. Cardoso, M. A. Neves & J. S. Oliveira 2023, sp. nov.
Notice bibliographique
Résumé
Humidicutis pindorama J.S. Cardoso, M.A. Neves & J.S. Oliveira, sp. nov. (Figs. 3a–e, 4a–c) MycoBank # MB844321 Etymology:—Refers to Pindorama, considered the indigenous name for Brazil in Tupi-Guarani language. Type:— BRAZIL. Santa Catarina: Itapoá, RPPN Volta Velha, Glass House Trail, 15 m elev., 26°05’23.4”S 48°38’18.5”W, 18 November 2012, Cardoso, J. S. & Neves, M. A. 18 (FLOR57148, holotype). Diagnosis:—Basidiomata green to orange, pileus umbonate, lamellae with orange edges, stipe with orangish small fibrils, context turning bluish when cut, growing solitary in white sandy soils. Differs from Humidicutis multicolor in the lack of purple-lilac-blue pigments in the basidiomata and by having bigger basidiospores. Description:— Pileus 22–35 mm diam., umbonate to papillate or plane with an umbo, sometimes split at the centre, smooth to finely fibrillose, moist to dry, moss green (oac41) to olive green (oac866, oac867) at the centre, becoming orange (oac838, oac775, oac789) towards the margin, hygrophanous, turning light brown (oac777) to brown (oac749) with age; margin even or slightly uplifted and splitting, sometimes eroded, translucent-striate, orange (oac761), orangy brown (oac842) with green tints, or light brown (oac799). Lamellae uncinate, subdistant, up to 3 mm broad, slightly intervenose, thick, very waxy, olive green (oac867, oac859) to moss green (oac41) near the insertion to pileus, then yellowish green (oac887) and yellowish orange (oac852, oac853) near the edge; edge entire, sometimes forking near the insertion to stipe, orange (oac761, oac789); lamellulae of two lengths. Stipe 20–50 mm × 3–4 mm, central, regular to irregular, hollow, sometimes with longitudinal fissure, dry, smooth to slightly fibrillose, green (oac40) to light green (oac67, oac851, oac21) at the apex, to yellowish (oac855) or orange (oac790, oac791) at the base, with orangish (oac845, oac810) superficial fibrils. Pileus context becoming slightly blue after cutting. Basidiomata becoming pinkorange when dried. Basidiospores 6.6– 7.98 –11 × 4– 5.61 –7 μm, Q = 1.422– 1.450 –1.470, ellipsoid, guttulate, thin-walled, hyaline, inamyloid, some germinating when still attached to the sterigmata. Basidia (29–)34–52.1 × 5.9–11 μm, cylindricclavate, funnel-shaped at the base, guttulate, hyaline, 4-spored, sterigmata up to 13.0 μm long, with conspicuous basal toruloid clamp-connections. Lamellar edge fertile. Cystidia absent. Lamellar trama regular to subregular, with parallel, slightly divergent hyphae, with some inflated segments, 33–197 × 3–40 μm, clamp connections absent. Pileipellis a cutis composed of slightly interlaced parallel hyphae, 3–9.4 μm diam., with granular encrusting pigments, some hyphae protruding, many branching or forming anastomosis, hyaline in KOH, light yellow in water, clamp connections absent. Stipitipellis a cutis of parallel hyphae 3.1–18 µm diam., cylindrical, septate, with granular encrusting pigments, with many anastomoses, upper layer of thin hair-like interwoven hyphae, 1–3.2 µm diam., protruding, hyaline in KOH, clamp connections absent. Specimens examined:— BRAZIL. Santa Catarina: Itapoá, RPPN Volta Velha, Glass House Trail, 15 m elev., 26°05’23.4”S 48°38’18.5”W, 18 November 2012, Cardoso, J. S. & Neves, M. A. 18 (FLOR57148); Cardoso, J. S. & Neves, M. A. 20 (FLOR 57150); Amazonas: Manaus, Cuieiras River INPA Reserve, 20 m elev., 2°34’06.7”S 60°19’15.2”W, 12 July 2018, Cardoso, J. S. & Vieira, S. S. 485 (INPA285626). Distribution:—Atlantic rainforest in Santa Catarina State and Amazon forest in Amazonas State. Habitat:—Growing solitary, on soil of white sand forests in both restinga and campinarana vegetation types. Comments:—There are seven green Humidicutis species described worldwide with only one recorded from South America, Humidicutis multicolor (Berk. & Broome) E. Horak (1990: 298). Humidicutis multicolor was described from Sri Lanka with records in Tierra del Fuego, Southern Argentina, and New Zealand (Horak 1979, Horak 1990). Humidicutis multicolor also has a blue pileus context when exposed but differs from H. pindorama by having purple-lilac-blue pigments in the pileus and stipe, and by the much smaller basidiospores (5.5–7 × 4–5 µm) and basidia (20–45 × 6–7 µm) (Horak 1990). Humidicutis pindorama is macroscopically like Humidicutis luteovirens (Horak) Horak (1990: 296) from New Zealand, but the latter has smaller basidiospores (6–8 × 3.5–4.5 µm) and basidia (25–42 × 6–7 µm) (Horak 1990). Humidicutis arcohastata (A.M. Young) A.M. Young (2005: 159) in Australia differs from H. pindorama by the conical to campanulate pileus and by the presence of purple-mauve tints on the pileus and stipe (Young 2005). Humidicutis helicoides (A.M. Young) A.M. Young (2005: 159) has lime green lamellae rather than green to orangy yellow lamellae with a deep orange edge (Young 2005). Also, H. pindorama lacks the spiral bands of encrusted pigments found in the pileipellis hyphae of H. helicoides. Humidicutis taekeri (A.M. Young) A.M. Young (2005: 159) is easily distinguished from H. pindorama by its brilliant orange lamellae (Young 2005). Humidicutis viridimagentea A.M. Young & K. Syme (2007: 71) differs by the distinctive magenta colouration (Young 2005, Young & Syme 2007). Finally, Humidicutis woodii (A.M. Young) A.M. Young (2005: 159) has a white stipe and lacks the conspicuous toroidal clamp connections (Young 2005) at the basidia base. Only the second species of Humidicutis known from South America, H. pindorama was described based on two specimens from Southern Brazilian Atlantic Rainforest and one from the Amazon Forest, increasing the distribution range of the genus. Basidiomata were found on white sand soils, so this species is probably adapted to soils poor in nutrients. The germinating basidiospores in JS20 are very intriguing and firstly recorded herein.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,002 | 0,001 |
| Méta-épidémiologie (sens large) | 0,001 | 0,000 |
| Bibliométrie | 0,003 | 0,002 |
| Études des sciences et des technologies | 0,002 | 0,001 |
| Communication savante | 0,001 | 0,003 |
| Science ouverte | 0,001 | 0,002 |
| Intégrité de la recherche | 0,001 | 0,002 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,011 | 0,006 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».