- Robert Buser 179
- Buser R 96
- R. Buser 81
- Buser, R. 73
- Buser 20
- Buser, R. (Coll. Barbey-Boissier) 18
- Buser, Robert 16
- buser, r. 7
- Buser R. 7
- Buser, R.|Schmidely, A. 5
- Buser, R. (Coll. Delessert 1907) 4
- Buser, R. (Coll. Bertram V. D. Post) 4
- Buser, R 4
- Buser, R. (Coll. G) 4
- Autran, E.J.B.|Buser, R. 4
- Buser, Otmar & Buser, Robert 3
- Buser, R. (no. 4639) 3
- Buser, R. (no. 4657) 3
- Buser, R. (no. 4653) 3
- Buser, R. (no. 4652) 3
- Buser, R. (Coll. Schmidely) 3
- R. Buser. 3
- Buser, R. (no. 4661) 2
- Buser, R. (no. 4637) 2
- Buser, R. (no. 4647) 2
- Buser, R. (no. 4646) 2
- Buser, R. (no. 4635) 2
- Buser, R. (no. 3630) 2
- Buser, R. (no. 4640) 2
- Buser, R. (no. 4641) 2
- Buser, R. (no. 4638) 2
- Buser, R.|ou Smidely, A. 2
- Buser, R. (Coll. V. D. Post) 2
- R Buser 2
- Buser, R. & H. Schinz (Coll. Barbey-Boissier) 2
- Buser O; Buser R 2
- Buser, R. (Coll. Auguste Schmidely) 2
- Buser,O. & Buser,Robert s.n. [1880-03-23]|Buser,O. & Buser,Robert 1
- Heinrich Feer 1
- Otmar Buser 1
- Buser,Robert s.n. [1881-07-10]|Buser,Robert 1
- Buser,Robert|Buser,Robert s.n. [1881-07-20] 1
- Buser,Robert Herbarium Europaeum (C. Baenitz) s.n. [1881-07-22]|Buser,Robert 1
- Buser,O. & Buser,Robert|Buser,O. & Buser,Robert s.n. [1880-03-29] 1
- Buser,O. & Buser,Robert|Buser,O. & Buser,Robert s.n. [1880-04-06] 1
- Buser,O. & Buser,Robert s.n. [1880-04-02]|Buser,O. & Buser,Robert 1
- Buser,O. & Buser,Robert Herbarium Europaeum (C. Baenitz) s.n. [1880-03-29]|Buser,O. & Buser,Robert 1
- Buser,O. & Buser,Robert|Buser,O. & Buser,Robert Herbarium Europaeum (C. Baenitz) s.n. [1880-04-03] 1
- Buser,Robert|Buser,Robert s.n. [1880-04] 1
- Buser, R. (no. 8238) 1