key to abbreviations used in the notes
Map References (Full details in the Bibliography)
| 1852 | 1852 map of Darjeeling hill territory (held at RBG Kew). |
| 1872 | 1872 Transfrontier Map (see bibliography under Walker). |
| 1981 | 2nd Edition 1:150000 State Map of Sikkim, 1981. |
| BM | Bartholemew World Travel Map 1990. |
| CM | G.H. Cave's manuscript map of 1957 (held in RBGE library). |
| COM | NE Trans-Frontier Map, 4th ed Sheet 7, June 1908, 1"= 8m. |
| LSM | F. Ludlow and G. Sheriff's manuscript map (held in RBGE library). |
| LT | Land of the Thunderbolt (Ronaldshay, 1923). |
| NM | Nelles Verlag Map India 5, North East. |
| SM | 1941 Survey of India Map (Survey of India, 1941). |
| HJ | Hooker's Himalaya Journal (Hooker, 1854). |
| WM | Smith and Cave Sikkim itinery (Smith & Cave, 1913). |
| FBI | Flora of British India (Hooker). |
| KF | J.M.Cowan's The Forests of Kalimpong (Cowan, 1929). |
| WB | White's Sikkim and Bhutan (White, 1909). |
| GS | Risley's Gazetteer of Sikkim (Risley, 1894). |
Collector's Abbreviations
| A | Alpine Garden Society Expedition to Sikkim 1983 (AGSES) |
| AN | A. Anderson |
| BE | Bedi (also 'BED') |
| BK | Bor & K. Ram |
| BL | S.A. Bowes-Lyon |
| BSI | Botanical Survey of India |
| BW | Biswas |
| C | G.H. Cave (Ribu & Rhomoo were Cave's local collectors) |
| CB | C.B. Clarke |
| CC | A.M. Cowan and J.M. Cowan |
| CL | C.C. Lacaita |
| CV | C.S. Cutting & A.S. Vernay |
| COO | R.E. Cooper (see also 'RC') |
| DC | D.F. Chamberlain |
| DL | D.C. Lowndes |
| DR | J.R. Drummond |
| DU | Dungboo (G.King's local collectors) |
| E | Edinburgh Expedition to Sikkim and Darjeeling 1992 (ESIK) |
| FS | F. Spencer-Chapman |
| FY | F.E. Younghusband |
| G | J.S. Gamble |
| GA | G.A. Gammie |
| GK | G. King (local collectors: Babu, Dungboo, Gyabu, Kari) |
| GL | A.J.C. Grierson & D.G. Long |
| GO | B.J. Gould (see also 'GOU') |
| GRI | W. Griffith |
| GOU | B.J. Gould (see also 'GO') |
| H | J.D. Hooker |
| HE | H.E. Hobson |
| HH | H.H. Haines |
| IS | I.W.J. Sinclair |
| KW | F. Kingdon Ward |
| LA | J.H. Lace |
| LI | J.L. Lister |
| LS | F. Ludlow & G. Sheriff (and co-collectors) |
| LW | L.A. Waddell |
| MA | Matthew |
| PO | O. Polunin |
| PN | Pradhan, Norbu & Naku |
| PR | D.A. Prain |
| PT | Pantling |
| RB | R.H. Beddome |
| RC | R.E. Cooper (see also 'COO') |
| RE | R. Ellis |
| RR | Ribu &/or Rhomoo |
| SARG | C. Sargent |
| SC | W.W.Smith & G.H.Cave |
| SK | S. Kurz |
| SL | I.W.J. Sinclair & D.G. Long |
| SR | G.L. Searight (Burkhill after 1900) |
| ST | J.D.A. Stainton |
| TR | W.J. Treutler |
| TU | Tokyo University Collections |
| VC | F.de Vos & E.D. Corbett |
| WS | W.W. Smith |