Not possible from the pics given. Do you have close-ups- both top view of pileus ; gills?? pores?? Send me an email [email protected] and will send you some guidelines.
Although I am an specialist for taxonomy of ascomycete fungi, I can assure you that fungi (even these fleshy and large agarics) cannot be identified in such an easy way. Please consider to employ some well trained mycologist to work with you from collecting and documenting to identification! For instance, many of fruitbodies are not properly collected (the stipe base is missing).
mushrooms are of huge diversity, and usually local expert, including experienced amateur mycologist, can tell you names of these mushrooms, although maybe not taxonomically accurate. If that is what you want, look for helps from a local mushroom club. If you want right names for research purposes, probably you can roughly classify these mushroom to large groups, such as boletes, polypores, russuloid fungi, coral fungi etc. using some popular mushroom ID books, then upload better pictures for mushrooms in each group here for further help.
It is very easy to identify if one species belongs to the genus Agaricus. Gills are free, pink coloured when young and quickly become chocolate brown. Species of Agaricus has a ring on the stem. Lepiota is a related genus, both belong to Agaricacea Family, but Lepiota has white gills.
Thanks to you all, for your kind and helpful advice. I will take pix of individual specimens, and then post again. Meanwhile, we do not have enough resources to employ expert mycologists (in that case it would not be necessary to post the photos here). So I will need your kind assistance in identification. Thanks again.
These mushrooms are small, probably you do not find many mycologists knowing them. Dr. Matheny and Dr. Peterson at the University of Tennessee may can help you, depend on where you found these -- they are among the best mycologists studying these small mushrooms, and they are of special interest on mushrooms from certain areas. Dr. Zhuliang Yang in southeast China may know better about mushrooms in that area.
Thanks, Dr. Zheng Wang. These mushrooms are small indeed. They are all from the forests of southern Odisha (an eastern State of India). These are all edible, and regularly harvested by the resident tribals of the area.
Give at least a note on size, taste, smell, viscidity, latex etc. and take a good photo of the top and uderside (an example, e.g.: http://www.mykologie.net/index.php/houby/podle-morfologie/lupenate/item/22-agrocybe_arvalis), not on direct sunlight, document true colors.. Many species need microscopic examination to be determined. The well dryied specimens are necessary.
As suggested by a number you must work with experts - In India there a couple to start with. I am working with mushrooms used by indigenous folks who collect mushrooms for food and medicine. We can try to help - we may have common ones. I need your email to send guidelines for collecting, description and preparation of herbarium specimens which can be used for Microscopic examination. Try to culture as many as you can -
I THINK THAT FUNGI BELLOW TO GENUS AGARICUS. THE EXPERTISE ON AGARICUS IS DR. IRACEMA CRUSIUS. SHE WORK IN BOTANIC INSTITUTE, SÃO PAULO, BRAZIL.REGARDS, CLAUDETE
probabbly is Agaricus genus , however more morphological data is required for identification. And if you extract DNA for identification, you will be successful.