| RefNo | Title | Source |
| DF/TM/1/58/16 | Correspondence R: Ragg; Reichenow; Reiser; Ribbe | |
| DF/TM/1/15/8 | Correspondence R: Reichenow; Reimer | |
| DF/TM/1/52/3 | Correspondence R: Reichenow | |
| DF/TM/1/4/13 | Correspondence R: Reichenow; Reiser; Rey | |
| DF/TR/1/1/25/379 | Reichenow, [Anton] | |
| DF/TR/1/1/29/519 | Reichenow, [Anton] | |
| DF/TM/1/22/14 | Correspondence R: Ravenscroft; Regel; Reichenow; Reimer | |
| DF/TR/1/1/32/406 | Reichenow, [Anton] | |
| DF/TR/1/1/27/459 | Reichenow, [Anton] | |
| DF/TR/1/1/26/456 | Reichenow, [Anton] | |
| DF/TR/1/1/33/229 | Heinroth, [Oskar] | |
| DF/TR/1/1/31/483 | Reichenow, [Anton] | |
| DF/TM/1/45/19 | Correspondence R: Rauchlechner; Reichenow; Reichert | |
| DF/TR/1/1/24/366 | Reichenow, [Anton] | |
| DF/TR/1/1/28/478 | Reichenow, [Anton] | |
| DF/TR/1/1/33/445 | Reichenow, Anton | |
| DF/TM/1/38/1 | Correspondence R: Ray; Ravenscroft; Reichenow | |
| DF/TM/1/66/2 | Correspondence R: Rees; Reiser; Rey; Reichenow; Reiser | |
| DF/TM/1/30/1 | Correspondence R: Ramsay; Reach; Reeve & Co; Reichenow; Reimer; Reiser | |
| DF/TR/1/1/26/172 | Erlanger, Caroline | |
| DF/TR/1/1/30/436 | Reichenow, Anton | |