New species of Amanita subgen. Lepidella from Guyana

Taxonomic Study of Amanita Subgenus Lepidella and Three Unrecorded Amanita Species in Korea

Amanita Pers. is a well-known monophyletic mushroom genus with a broad distribution. However, the diversity of Korean Amanita species has been underestimated, and most taxonomic studies conducted in Korea have only investigated their morphological characteristics. This approach is frequently insufficient for correct identification in fungal classification; therefore, we constructed a phylogeny ...

Searching for New Species of Amanita From the Remote Neo-Tropics of Guyana

Hyperaccumulation of silver by Amanita strobiliformis and related species of the section Lepidella.

Two ectomycorrhizal macrofungal Amanita species of the section Lepidella, A. strobiliformis and A. solitaria, were found to hyperaccumulate silver (Ag). All samples were collected from non-argentiferous areas with background Ag content in soils (0.07-1.01 mgkg(-1) Ag). The Ag contents of both Amanita species were mostly in the range of 200-700 mgkg(-1)D.W. with the highest Ag content of 1253 mg...

A new species of Osteocephalus (Anura: Hylidae) from Guyana.

A new member of the genus Osteocephalus is described from the Pakaraima mountains of western Guyana. This species is the smallest known member of the genus and is probably closely related to O. subtilis. Both share a small size (less than 40 mm snout-vent length), large and bulgy eyes directed somewhat rostrally, green bones, smooth and brownish dorsal skin, relatively short and truncate snout,...

A new species of Dipsas (Squamata: Colubridae) from Guyana.

A new species of Dipsas is described from the Pakaraima Mountains of Guyana. The new species is characterised by 15 dorsal scale rows with the middorsal row slightly enlarged. four pairs of chinshields with the first pair elongate, elongate loreal entering orbit, one preocular, six upper labials, and head narrow anteriorly, increasing in width posteriorly. It could not be determined to which of...