1.
Notes and Queries - volume 4 - Page 492
2.
3.
Notes and Queries - volume 4 - Page 370
Notes and Queries - volume 8 - Page 151
Notes and Queries - volume 11, 3rd Series - Page 25
Herbarium specimen image of Ternstroemia brasiliensis Cambess., part of the collection of Botanic Garden and Botanical Museum Berlin
Tagebuch des Missionars Albert Nachtigal: Band 2: Teil 2: 1881 - 1893 ; Diary of the Missionary Albert Nachtigal: volume 2: part 2: 1881 - 1893