Alan Rockefeller's research while affiliated with Merritt College and other places

Publications (10)

Preprint
Psilocybe zapotecorum is a strongly blue-bruising psilocybin mushroom used by indigenous groups in southeastern Mexico and beyond. While this species has a rich history of ceremonial use, research into its chemistry and genetics have been limited. Herein, we detail mushroom morphology and report on cultivation parameters, chemical profile, and the...
Article
Two new species belonging to the lichen genus Anaptychia are described from western North America. Anaptychia nevadensis is superficially similar to the Eurasian A. desertorum but is distinguished by having longer ascospores, in producing scant pruina only near the lobe tips, and in regularly producing variolaric acid. Anaptychia roemerioides is de...
Article
Full-text available
Since not only psilocybin (PSB) but also PSB-containing mushrooms are used for psychedelic therapy and microdosing, it is necessary to know their concentration variability in wild-grown mushrooms. This article aimed to determine the PSB, psilocin (PS), baeocystin (BA), norbaeocystin (NB), and aeruginascin (AE) concentrations in a large sample set o...
Article
Full-text available
Amanita amerivirosa is proposed as new and is assignable to Amanita section Phalloideae. For decades,the species was widely included in North American field guides under the name of a European species —Amanitavirosa. Several new primers are described along with associated methodology.
Article
Full-text available
Amanita amerivirosa is proposed as new and is assignable to Amanita section Phalloideae. For decades, the species was widely included in North American field guides under the name of a European species —Amanita virosa. Several new primers are described along with associated methodology.
Article
A revision of twenty-eight type collections of Psilocybe is presented. Descriptions of thetypes were completed with characteristics not previously mentioned such as the presence of pseudorhizain the stipe, pileocystidia, caulocystidia and pleurocystidia, as well as the subhymeniumtype and the arrangement of the hyphae in the pileus trama. From this...
Article
Seven species of bioluminescent fungi are recorded from the cloud forests in Mexico. Six represent new species belonging to the genus Mycena, whereas Mycena globulispora is a new distribution record for the country. Descriptions, illustrations, photographs, and an identification key to bioluminescent fungi species from Mexico are provided. Sequence...
Article
Full-text available
Two species of bioluminescent fungi are recorded from Mexico. Mycena stylobates is characterized by a pubescent basal disc, pileus with a separable gelatinous pellicle, and cheilocystidia with coarse excrescences, and represents a new record for the country. Panellus stipticus, which is distinguished by having rounded flabelliform basidiomata and a...
Article
Full-text available
This is the first internal transcribed spacer (ITS) phylogeny of the enigmatic genus Cantharocybe and includes ITS sequences from two out of the three holotype collections. Two species are reported from the Americas and only a single species from Asia. Additionally, a collection of Cantharocybe virosa collected from tropical Bangladesh was included...
Article
Full-text available
Psilocybe allenii is a new bluing wood-rotting species from the Pacific Coast, USA. Both morphological and molecular features (ITS rDNA phylogeny) indicate its close relationship to Psilocybe cyanescens Wakef. Despite the shape and size of spores and cystidia of this new species falling within the variability of P. cyanescens, P. allenii can be dis...

Citations

... Macro-and micro-morphological features (Guzmán, 2012;Guzman et al., 2014;Rossato et al., 2009) which were previously used to describe taxonomy among psychedelic mushrooms are largely inefficient to describe the variations between the wide range of know psychedelic mushroom species. Thus, current methods in the taxonomical ranking of psychedelic mushrooms relies on sequencing the Internal Transcribed Spacer (ITS) region of the ribosomal operon, representing a barcoding region used to sufficiently differentiate between species (Gotvaldová et al., 2022). ...
... The Bayesian inference of phylogeny based on ITS and LSU data ( Figure 1) is consistent with previously published organization of Amanita sect. Phalloideae [31,[33][34][35][36][37]64], although the limited signal provided by the ribosomal regions alone does not resolve most supraspecific nodes supported by the analyses, including protein-coding genes. The Mediterranean 'destroying angels' include at least seven different species. ...
... Wide distribution of mushroom genera can result in ecotype-like adaptations which can broaden genetic diversity and associated phenotypes (Frings et al., 2020). Taxonomic arrangement of Psilocybe mushrooms has been widely debated and re-worked based on continuously emerging data (Cortés-Pérez et al., 2021). Macro-and micro-morphological features (Guzmán, 2012;Guzman et al., 2014;Rossato et al., 2009) which were previously used to describe taxonomy among psychedelic mushrooms are largely inefficient to describe the variations between the wide range of know psychedelic mushroom species. ...
... Gastrodia elata Bl., a food and drug herb, is highly sought after in the current market due to its various effects, including promoting neural differentiation and delaying aging (Hsu et al., 2021;Yang et al., 2021), and its seed germination relies on Mycena fungi to provide nutrients and develop protocorms (Kim et al., 2006;Huang et al., 2018). Mycena fungi are widely distributed in China (Kim et al., 2006;Liu et al., 2015), and 39 species have been reported from the Changbai Mountain region of northeastern China alone (Cortes-Perez et al., 2019;Na and Bau, 2019a,b). Mycena is a diverse genus that includes a large number of species, but only a small number of species exhibit germination effects (Higaki et al., 2017;Na et al., 2022). ...
... These species are characterized by collybioid or mycenoid basidiome, which can be pink, purple, violet, and, rarely, reddish-brown or yellowish. The pileus is glabrous, and the stipe [27] Panellus stipticus (Bull.) P. Karst. ...
... Stipe covering mostly with appressed, slightly interwoven hyphae near the base, and scattered caulocystidia like those of the cheilocystidia. Clamp connections present in most of all hyphal septa (Bigelow and Smith 1973;Ovrebo et al. 2011;Lodge et al. 2014;Hosen et al. 2016). ...
... Modern attention is largely focused on the genus Psilocybe (Fr.) P. Kumm., which is globally distributed (Carod-Artal, 2015;Guzmán, 2005). Discoveries of novel species and subspecies continue to be described (Borovička et al., 2012;Li et al., 2014;Ma et al., 2014;Ma et al., 2016). ...