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Erysiphe bulbouncinula (≡ Bulbouncinula bulbosa) on Koelreuteria paniculata is a powdery mildew native and endemic in China. Fresh samples of this species were collected on K. paniculata in Sichuan Province, China, in 2018. This is the fourth confirmed identification of this species. The original description in 1932 was based on one specimen from Hangzhou and then was described in Nanjing in 1990 and in Taiwan in 1993. The morphology of the new collections of this species is described and illustrated in detail, and agrees well with the original description of the type specimen except for the number of asci (8–16 asci per chasmothecia versus 7–9 asci in the type specimen). To explore the phylogenetic position of this poorly known species, three separate phylogenetic analyses, using partial 28S rDNA and the combination of internal transcribed spacer (ITS) and 28S rDNA sequences, were conducted. The results clearly showed that E. bulbouncinula form a monophyletic clade with strong bootstrap (BS) support (MP = 100%) constituting a sister clade to E. gracilis s. lat., form a subclade with Erysiphe sect. Californiomyces and then form a big group with sect. Typhulochaeta and sect. Uncinula. Phylogenetic results confirm that E. bulbouncinula is more closely allied to Erysiphe than to Phyllactinia. Thus, this species can be maintained in Erysiphe in its current circumscription, confirming Bulbouncinula as a synonym of Erysiphe. [ABSTRACT FROM AUTHOR]

A visitor's experience quality is determined by the psychological outcome of their involvement in tourist activities. There are traits that are supplied by a site that are then introduced to the visitor's characteristics. Tourists' emotive responses and judgments of their desired social–psychological goals can be used to measure experience quality. Experience quality is often evaluated holistically or gestalt. People's motivation, contentment, and goals have long been studied in western tourism/recreation research as a method of forecasting their post-visit behaviors and behaviors. The Chinese Urban Forest setting has seen a relatively small number of research projects. Supported by the Structural Equation Model (SEM), this paper is aimed to probe into the post-visit behavioral mechanism of urban forest recreationists. The method involves constructing a conceptual model from the review of related literatures. Ten research hypotheses proposed based on literature review are estimated from the data collected in Nanjing, China. Structural Equation Modeling (SEM) is employed to verify the effect of recreational benefits on post-visit behavioral intentions and to examine the interrelationships among the factors (e.g., image, benefits, value, satisfaction and intentions). According to statistics, the four primary aspects in constructing a terminal image are availability, appearance, branding, and amenities, while the three components of recreational benefits are interpersonal, psychological rewards, practical and recreational benefits primarily depend on the tourists' experience. Meanwhile，the analysis shows that the image factor indirectly affects post-visit behavioral decision of urban forest recreationists, while recreational benefits, as a variable to measure perceived quality, and exerts together direct as well as indirect effects on behavioral intentions. For urban forest owners that cater to the rising number of Chinese outdoor recreationists, all of the above stated studies provide valuable information. • Structural Equation Model (SEM) is aimed to probe the post-visit behavioral mechanism of urban forest recreationists. • SEM is employed to verify the effect of recreational benefits on post-visit behavioral intentions. • SEM examines the interrelationships among the factors such as image, benefits, value, satisfaction and intentions. • The image factor indirectly affects post-visit behavioral decision of urban forest recreationists. [ABSTRACT FROM AUTHOR]