shiitake-edible east Asian mushroom having a golden or dark brown to blackish cap and an inedible stipe.Chinese black mushroom, golden oak mushroom, Lentinus edodes, Oriental black mushroom, shiitake mushroom.hiitake-edible east Asian mushroom having a golden or dark brown to blackish cap and an inedible stipe.
Sumatra (Sumatera) World's sixth largest island, in w Indonesia. The largest cities (pop. 1990) are Medan (1,685,972), Palembang (1,084,483), and Padang (477,344). Sumatra's w coast is rugged and mountainous, the Barisan Mountains rising to 3810m (12,500ft), and nearly 60% of the lowland area is jungle.
The Sumatra region is prone to earthquakes because it lies at the boundary of two of Earth's tectonic plates. On the global map below, each red dot is an earthquake. The dots form distinct bands that align with and define plate boundaries.