Many collectors’ references are cited throughout Trees and Shrubs Online, often in the form of an initial or acronym associated with a serial number. To help decipher these the following list is provided, but further references are also available in the annual editions of The RHS Plant Finder (for example, Lord 2008). We are very grateful to Susyn Andrews for her help in compiling this list. There is occasional variation in the form in which such references are cited, as different institutions use different forms (for example, W&H and WAHO both relate to collections made by Roger Warner and Lord Howick).

Collection numbers are an important part of the data associated with wild-origin material, and should never be discarded from labels or records.

ACE
Alpine Garden Society Expedition to China, 1994.
A&L
Ann Ala, Roy Lancaster. Iran, 1972.
B&L
See BRLL.
BB
Bruce Bartholomew.
BECX
RBG Kew: I. Beyer, Charles Erskine, Jill Cowley. South Korea, 1982.
BRLL
Christopher Brickell, Alan Leslie. (Also B&L.)
BSWJ
Bleddyn and Sue Wynn-Jones. (Crûg Farm Plants. For a comprehensive list of Wynn-Jones collections, see Crûg Farm Plants 2007–2008.)
BWJ
Bleddyn Wynn-Jones (collecting alone).
CBS
NACPEC Expedition to Changbai Shan, Jilin, China, 1997. (Correctly, the reference is NACPEC 97 (CBS).)
CDR
James Compton, John d’Arcy, Martyn Rix.
CEE
Chengdu Edinburgh Expedition, 1991.
CH
Peter Cox, Steve Hootman.
CLD
Cangshan, Lijiang, Dali Expedition, 1990. (Sometimes CLDX.)
DAP
Dendrological Atlas Project.
DJH
Daniel J. Hinkley. (Suffix indicates collection area. For example: DJHB, Bhutan; DJHC, China; DJHJ, Japan; DJHS, Sikkim; DJHT, Taiwan; DJHV, Vietnam.)
ECEH
Eric Hammond (formerly of Heronswood Nursery). Chile, 2000.
EDHCH
Eric Hammond. China, 1997.
EHOK
RBG Kew Expedition to Hokkaido, 1997.
EMAK
RBG Edinburgh Expedition to Makalu, 1991.
EN
Edward Needham.
ENEP
RBG Edinburgh Nepal Expedition, 2001.
EPAK
RBG Kew Expedition to Pakistan, 1995.
ESUS
RBG Kew Expedition to Sakhalin & Ussuri, 1994.
ETAZ
RBG Kew Expedition to Tasmania, 2002.
ETE
RBG Edinburgh Expedition to Taiwan, 1993.
ETOT
RBG Kew Expedition to Taiwan, 1992.
F
George Forrest. (Occasionally also used for collections by Reginald Farrer.)
FAWA
Aljos Farjon, A. Watt.
FLSX
RBG Kew: H. Fliegner, John Simmons Expedition to Iran, 1977.
FRJA
Aljos Farjon. (Kew records format.)
GCCE
Glasnevin Central China Expedition, 2002.
G&K
Martin Gardner, Sabina Knees. Chile, 1990.
GSE
RBG Edinburgh Gaoligong Shan Expedition, 1996.
GUIZ
RBG Kew Expedition to Guizhou, 1985.
GWC
Guy Clapperton.
GWJ
Sally Goddard, Bleddyn and Sue Wynn-Jones.
H
Lord (Charles) Howick. (Usually used in combination: H&M, etc.)
HLJ
NACPEC Expedition to Heilongjiang, China, 1993.
H&M
Lord (Charles) Howick, Bill McNamara.
HONX
RBG Kew Expedition to Honshu, 1996.
HWJ
Dan Hinkley, Bleddyn and Sue Wynn-Jones. Vietnam, 1999.
HWJK
D. Hinkley, Bleddyn and Sue Wynn-Jones, Jamaica Kincaid. Eastern Nepal, 2002.
ICE
Instituto de Investigaciones Ecologicas Chiloé & RBG Edinburgh, 1996.
JCRA
JC Raulston Arboretum.
JR
James Russell.
KE
(USNA-led) Korean Expedition – Southwest Coast & Islands, 1985. (Also sometimes KSW.)
KEKE
RBG Kew & Edinburgh Kanchenjunga Expedition, 1989.
KFBX
RBG Kew: Tony Kirkham, Mark Flanagan, Peter Boyce. Expedition to South Korea, 1989.
KGB
Kunming/Gothenburg Expedition, 1993.
KNW
(USNA-led) Expedition to Korea – Northwest Coast and Islands, 1984.
KR
Keith Rushforth.
KSW
See KE.
KW
Frank Kingdon-Ward.
L
Roy Lancaster.
LUSE
Ludlow, Sherriff, Elliot. Himalaya, 1947.
MAWAX
Araucaria Expedition, Chile, 1998.
MBMX
Bill McNamara, Michael Maunder. Expedition to Japan, 1989.
MF
Maurice Foster.
NA
US National Arboretum (accession prefix).
NACPEC
North American China Plant Exploration Consortium (a group of collaborating institutions, mostly from the eastern United States).
NACPEC 97 (CBS)
NACPEC Expedition to Changbai Shan, Jilin, China, 1997.
NEKG
(USNA-led) Expedition to Korea – Northeast, 1989.
NJM
Nick Macer.
NWKNW
(USNA-led) Expedition to Korea – Northwest, 1984.
PCH MEX
G. Pattison, P. Catt, M. Hickson. Mexico, 1995.
PI
USDA Plant Introduction.
PW
Peter Wharton.
QPH
QingPu Paradise Horticultural Co. (commercial branch of Shanghai Botanic Garden).
RC
Robert (Bob) Cherry.
RMcB
Ron McBeath.
RWJ
Crûg–Rickard’s Ferns Joint expedition to Taiwan, 2003.
SABE
Sino-American Botanical Expedition, 1980.
SAS
Stephen A. Spongberg.
SBEC
Sino-British Expedition to the Cangshan, 1981.
SBG
Shanghai Botanic Garden.
SCHL
Tony Schilling.
SCN
RBG Edinburgh Sichuan Expedition, 1992.
SEP
Swedish Expedition to Pakistan, 1983.
SICH
(RBG Kew-led) Expeditions to Sichuan. (Successive numbering for nine expeditions, 1988–2003.
SOJA
Bill McNamara, Michael Maunder. Southern Japan, 1989.
SOKU
RBG Kew Expedition to Shikoku (Ray Townsend, Mark Bridger), 1999.
SSC
Schilling, Sayers, Bista. 1966.
TH
Tom Hudson.
THD
Tom Hart Dyke.
TNL
Philip Thomas, Nan Li, 1999.
TURX
RBG Kew Expedition to Turkey (M. Flanagan, M. Pitman), 1990.
UCEXC
Universidad de Chile, RBG Edinburgh. Expedition to Southern Chile, 1998.
USDA
US Dept. of Agriculture.
USNA
US National Arboretum.
VERA
M. Sparrow, P. Brewster, Expedition to Veracruz, 1993.
W
E.H. Wilson. (Also WILS.)
WAHO
Roger Warner, Lord (Charles) Howick. United States, 1986. (Also WH, W&H.)
WAPE
John Watson, Stephen Pern.
WD
NACPEC Expedition to Wudang Shan, Northwestern Hubei, China, 1994.
WH / W&H
See WAHO.
WILS / Wilson
See W.
WSYUS
Widrlechner, Schutzki, Yukhnovsky, Sviatetsky. Ukraine, 1999.

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