Coll. KPM-NC 18029
© T. Orihara | | | | | |
Hydnocystis japonica (Kobayasi) Trappe, Mycotaxon, 2 (1): 115 (1975).
Basionym Protogenea japonica Kobayasi, Trans. Mycol. Soc. Japan, 4: 119 (1964).
Diagnosis Mycelia e parte basale fructificationis oriunda, graciles albida 3-5 mm longa, hyphis hyalinis, ramosis septatis 5-6 µ crassis. Fructificatio singularis globosa vel paullo depresso-globosa 8-12 mm in diam., 5-7 mm alta, sicco carnea flexilis cum cavo unico magno, externe glabra, pruinosa, pallide ochracea vel fere alba, opaca, interne glabra pallide ochracea, opaca ; pori apicale orbiculato parvo 2 mm in diam., vel irregulariter elongato, non fimbriato. Peridium 500-550 µ crassum, basi crassiore, pseudoparenchymaticum e cellulis polyhedratis inaequalibus dense texto, semipellucidum, pallide ochraceum vel fere album, externe cum hyphis septatis vel cellulis elongatis praeditum. Medulla tenuis 0.1-0.15 mm µ craSSa, albida e hyphis septatis composita. Pars fertilis 700-900 µ crassa, albida ; hyphis sterilibus palisadim ordinatis, apicaliter fasciculatis sed non confluentibus, fere equalibus, septati hyalinis 3-4 µ crassis. Asci irregulariter sparsim ordinate, cyllndrici, 270-400 × 35-40 µ, apice obtuse inoperculati, cum 3-8 ascosporis uniseriatis. Ascosporae globosae, pallide ochraceae 25-30 µ in diam., granulosa cum membranis duplici praeditae, membrana externa plus minusve crassa, hyalina laeve, membrana interna tenue.
Type CUP-JA-003467 - isotypus; KPM-NC-0024873 - epitypus
MycoBank 315326
Literature
Kobayasi Y. 1964. On a new genus Protogenea of the Tuberales. Transactions of the Mycological Society of Japan, 4 (5): 119-120.
Kumar L.M., Smith M.E., Nouhra E.R., Orihara T., Sandoval P., Pfister D.H., McLaughlin D.J., Trappe J.M., Healy R.A. 2017. A molecular and morphological re-examination of the generic limits of truffles in the Tarzetta-Geopyxis lineage – Densocarpa, Hydnocystis, and Paurocotylis. Fungal Biology, 121 (3): 264-284.
Trappe J.M. 1975. Generic synonyms in the Tuberales. Mycotaxon, 2 (1): 109-122.
Wang Z., Pei K.Q. 2001. Notes on discomycetes in Dongling Mountains (Beijing). Mycotaxon, 79: 307-314.
Classification: Tarzettaceae, Hydnocystis
Created on 15/08/2017.
Updated on 07/08/2023.
