Heinrich Handel-Mazzetti: [A Botanical Pioneer In South West China] - figure 25
Fig.25 High alpines on the ridge between Tuguancun and Haba. 4350-4450m, 23 June 1915. Anemone demissa, Diapensa purpurea, Cassiope selaginoides, Rhododendron complexum, R. prostratum, Primula chrysophylla. Chapter 14.