Heinrich Handel-Mazzetti: [A Botanical Pioneer In South West China] - figure 43
Fig.43 Pegaeophyton sinense in alpine springwater flushes beyond the Tsukue pass on the Nu Jiang (Salween)-Irrawaddy divide to the west of Gongshan (Tschamutong). On mica-schist soil at 4100m. Chapter 25.