A survey was conducted during June to November, 2017 in five selected parks and gardens of Dhaka city, Bangladesh namely National Botanical Garden, National Zoo, Romna Park, Dhanmondi Lake and Boldha Garden. The investigation was done to analyze the morphology, diversity and distribution of macro fungi A total of 44 macro fungi samples were collected and identified to 32 species under 18 genera and 18 families. The most frequent collected genera were Ganoderma sp., Daedeleopsis sp., Ramariopsis sp., Crepidotus sp. and Daldinia sp. The maximum frequency of identified species was exhibited by Ganoderma lucidum (9.46%), followed by Ganoderma applanatum (8.1%), Volvariella volvacea (5.41%), Agaricus bisporus (5.41%) Daedaleopsis confragosa (4.05%), Trametes versicolor (4.05%) and Ganoderma boninense (4.05%). The maximum density of occurrence among collected samples was exhibited by Ramariopsis kunzei (11.3%), Ganoderma lucidum (9.9%), Crepidotus variabilis (5.3%) and Daedaleopsis confragosa (3.76%). The predominant species found in National Botanical Garden is Ganoderma applanatum, in Ramna Park is Ganoderma lucidum, in Dhanmondi Lake is Ramariopsis kunzei, in Boldha Garden is Ganoderma lucidum and in National zoo is Amanita bisporigera. The collected specimens were deposited to the Sher-e-Bangla Agricultural University Herbarium of Macro Fungi (SHMF).

Aim: This study was aimed to compare the performance of different substrates and mother culture materials on yield and yield parameters of oyster mushroom (Pleurotus ostreatus). Study Design: This is an experimental study following Complete Randomized Design (CRD). Place and Duration of Study: The experiments were conducted in the Laboratory, Department of  Plant Pathology, Sher-e-Bangla Agricultural University, Dhaka and Mushroom Development Institute, Savar, Dhaka from January 2019 to February 2020. Methodology: Accordingly, three substrates (sawdust, rice straw, sawdust + rice straw (1:1)) and three mother cultures (rice, maize, sawdust) were used in oyster mushroom cultivation. Results: Among the substrates and mother culture components, using rice straw and sawdust mother spawn, the maximum length of stipe was recorded (23.27 mm and 24.29 mm, respectively). Applying sawdust + rice straw (1:1) and maize mother spawn, the peak diameter of stipe was calculated (9.90 mm and 10.01 mm, respectively). The maximal diameter of pileus was observed in sawdust + rice straw (1:1) and rice mother spawn (72.90 mm and 67.57mm, respectively). With the application of rice straw and maize mother spawn, thickest pileus was viewed (5.60 mm and 5.47mm respectively). The sawdust and sawdust mother spawn delivered peak number of fruiting body (6.67 and 7.33, respectively). Among the substrates, rice straw gave the highest biological yield (44.40 g/packet) and sawdust gave the lowest (41.73 g/packet). Among the mother spawn, sawdust mother spawn presented the highest biological yield (45.47 g/packet) and maize mother spawn gave the lowest (39.16 g/packet). In the comparison of  combined effect of substrates and mother spawn, sawdust mother spawn performed best in the biological yield (50.80 g/packet) with rice straw as substrate material and maize mother spawn showed comparatively lower biological yield (37.60 g/packet) with both sawdust and rice straw as substrate material. Conclusion: Rice straw and sawdust mother spawn can be recommended for its suitability in oyster mushroom (Pleurotus ostreatus) cultivation.

There are many hot spots in tropical moist deciduous forest region where wood decay fungi grow naturally. An investigation was carried  out  to  collect, identify  and  preserve wood decay Ganoderma spp. on the basis of morphological characteristics  from Pabna,  Dhaka and  Rajshahi under tropical  moist deciduous  forest  region in Bangladesh during  June  to September  2016 and July to October  2017. This study was conducted to  record the  morphological  variability,  distribution,  habitat  and diversity of  the Ganoderma  population. A  total  of  40 Ganoderma  samples  were  collected  and identified to nine species  under  Ganodermataceae family.  The samples were collected from the sites by walking through the area following standard method. The field data and laboratory analytical data was recorded during sample collection and in the laboratory, respectively.The highest density of occurrence (23%) was recorded for Ganoderma lucidum and Ganoderma oregonense followed by Ganoderma applanatum (20%), Ganoderma praelongum (19%), Ganoderma lesklokorka (18.5%), Ganoderma pfeifferi (17%), Ganoderma boninense (15%), Ganoderma lipsiense (13%) and Ganoderma tsugae (11%). The highest frequency of occurrence (10%) was recorded for Ganoderma applanatum and Ganoderma oregonense followed by Ganoderma lucidum (9%), Ganoderma pfeifferi (8%), Ganoderma boninense (8%), Ganoderma praelongum (7%), Ganoderma lesklokorka (7%),Ganoderma tsugae (6%) and  Ganoderma lipsiense (5%). During survey, Koroi (Albizia procera), Aurjun (Terminalia arjuna), Sisso plant (Dalbergia sissoo), Neem (Azadirachta indica), Golden shower (Acacia auriculiformis) and Rain tree (Albizia lebbeck) were found as hosts of Ganoderma spp. The specimens were preserved in the SAU Herbarium of Macro Fungi (SHMF) and might be useful in mushroom breeding and development program for medicine and food industry sector in future.

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