<p><strong><em>Helvella jocatoi sp. nov.</em> (Pezizales, Ascomycota), a new species from <em>H. lacunosa</em> complex with cultural importance in central Mexico <em>Abies religiosa</em> forests</strong></p>

Abstract

Helvella lacunosa is a species complex, with Helvella lacunosa s.s. not currently distributed in America. The objective of this study was to resolve the taxonomy of specimens from central Mexico identified as Helvella lacunosa s.l. associated with Abies religiosa forests. The nuclear ITS and LSU regions were PCR-amplified and sequenced from dry herbaria specimens. Phylogenetic analyses were based on Parsimony, Maximum Likelihood and Bayesian Inference approaches. Sequences of Helvella from A. religiosa forests grouped into a well-supported lineage within the North American clade together with Helvella dryophila (associated with Quercus in western USA) and Helvella vespertina (associated with conifer forests in western USA). Therefore, we describe and illustrate Helvella jocatoi as a new species based on phylogeny and morphological traits. In central Mexico, this taxon is an edible mushroom known as “gachupín”, has high cultural importance and is sold in large quantities. The description of this new species restricted to A. religiosa forests has implications for its conservation since its habitat is endangered.

Species Diversity of Helvella lacunosa Clade (Pezizales, Ascomycota) in China and Description of Sixteen New Species

“…& Traverso, and H. sulcata. Thereafter, nine additional species of Helvella were described from Spain [22], one from Mexico [23], and one from China [24], among which nine species belonged to this clade: H. cystidiata R.J. Xu In China, H. lacunosa was first recorded by Teng [25] from seven provinces, and then H. atra, H. lacunosa, H. pallescens, and H. lacteal were listed by Tai [26]. More taxa of the clade were subsequently reported: H. helvellula, H. lactea, and H. phlebophora by Liu and Cao [27]; H. philonotis by Zhuang and Wang [28]; and H. fusca Gillet by Xu [29].…”

Pezizales (Ascomycota) asociados a bosque de pino-encino en Yécora, Sonora, México

“…En México, Pezizales es uno de los órdenes mejor conocido de ascomicetos con 185 especies (Medel, 2007). Adicionalmente se han incorporado registros por micólogos mexicanos y extranjeros (Guevara-Guerrero et al, 2008, 2018Raymundo et al, 2012Raymundo et al, , 2013Raymundo et al, , 2014Raymundo et al, , 2016Raymundo et al, , 2019Raymundo et al, , 2020Medel et al, 2013a, b;Olariaga et al, 2015;Rodríguez et al, 2015;Sierra et al, 2016;Gómez-Reyes et al, 2018;Piña Paez et al, 2018;Grupe II et al, 2019;Leonardi et al, 2019;Ortega-López et al, 2019;Sánchez-Flores et al, 2020García-Jiménez et al, 2021;Landeros et al, 2021;De la Fuente et al, 2022). En contraste, el registro actual para Sonora es escaso con 23 especies (Esqueda-Valle et al, 1992Pérez-Silva et al, 1996;Méndez-Mayboca et al, 2007) (Cuadro 1).…”