&lt;p&gt;This &lt;em&gt;Tremella mesenterica&lt;/em&gt;, also known as a &quot;jelly fungus&quot; or &quot;witch&#39;s butter&quot;, is widely recognized because of its brilliant color. Biomedical researchers in China recently discovered that this fungus produces polysaccharides, a type of carbohydrate. For this reason it is believed to be a powerful immune enhancer.&lt;/p&gt;