First Record of Trichia papillata Adamonytė (Myxomycetes) in Russia

Abstract

During the study on myxomycete species diversity in Bitsevsky Park (Moscow), a new to Russia species Trichia papillata Adamonytė was recorded. It is characterized by stipitate sporangia on well-defined striated stalks. Dehiscence by 6–8 well-defined small peridial plates. The main feature of the species is conspicuous dark warts on the peridium, composed of granular material. The warts are located in the centre of most peridium plates. The paper presents data on the ecological features and distribution of this species as well as iconography and illustrations of morphology, obtained using light and scanning electron microscopy.

Additions to Trichia botrytis complex (Myxomycetes): 9 new species

“…Although the holotype was found on leporoid dung and paratypes -on cervoid dung, other specimens of T. papillata mentio ned in the literature were discovered on plant litter (Liu et al 2007, Gmoshinskiy et al 2019) and wood (Novozhilov et al 2017a), which suggests the facultative nature of this species preference for dung substrate (if all these records are truly conspecific). Our specimen from Volgograd Region cor res ponds to this thought.…”

“…Studied specimen is the second documented record of T. papil latainRussia.ThefirstonewasfoundinMoscowon co ni fe rous litter during the experiment with moist chamber cul tures (Gmoshinskiy et al 2019). It is characterized by slightly thinner elaters (3.0-3.5 vs 3.9-4.7 μm) with occa sio nal swellings up to 8-10 wide, which might be a result of aberrant development or endoparasite as in case of nivicolous Lamproderma Rostaf.…”

“…The outer peridium of Trichia papillataisunique:itcon sists of polygonal plates with very contrasting margins and a papilla-like thickening in the center of every plate (Adamo nytė 2003, Liu et al 2007, Gmoshinskiy et al 2019. In case of T. botrytis var.…”