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United States Department of Ecology and Management of Agriculture Morels Harvested From the Forests Forest Service of Western North America 3DFL¿F1RUWKZHVW Research Station David Pilz, Rebecca McLain, Susan Alexander, Luis Villarreal-Ruiz, General Technical Shannon Berch, Tricia L. Wurtz, Catherine G. Parks, Erika McFarlane, Report 31:*75 Blaze Baker, Randy Molina, and Jane E. Smith 0DUFK Authors David Pilz LVDQDI¿OLDWHIDFXOW\PHPEHU'HSDUWPHQWRI)RUHVW6FLHQFH2UHJRQ 6WDWH8QLYHUVLW\5LFKDUGVRQ+DOO&RUYDOOLV25Rebecca McLain LVDVHQLRUSROLF\DQDO\VW,QVWLWXWHIRU&XOWXUHDQG(FRORJ\32%R[3RUW ODQG25Susan AlexanderLVWKHUHJLRQDOHFRQRPLVW86'HSDUW PHQWRI$JULFXOWXUH)RUHVW6HUYLFH$ODVND5HJLRQ32%R[-XQHDX$.  Luis Villarreal-RuizLVDQDVVRFLDWHSURIHVVRUDQGUHVHDUFKHU&ROHJLR GH3RVWJUDGXDGRV3RVWJUDGRHQ5HFXUVRV*HQpWLFRV\3URGXFWLYLGDG*HQpWLFD 0RQWHFLOOR&DPSXV.P&DUU0p[LFR7H[FRFR(VWDGRGH0p[LFR Shannon Berch LVDIRUHVWVRLOVHFRORJLVW%ULWLVK&ROXPELD0LQLVWU\RI)RUHVWV 32%R[6WQ3URY*RYW9LFWRULD%&9:&&DQDGDTricia L. Wurtz LVDUHVHDUFKHFRORJLVW86'HSDUWPHQWRI$JULFXOWXUH)RUHVW6HUYLFH3DFL¿F 1RUWKZHVW5HVHDUFK6WDWLRQ%RUHDO(FRORJ\&RRSHUDWLYH5HVHDUFK8QLW%R[ 8QLYHUVLW\RI$ODVND)DLUEDQNV$.Catherine G. Parks is DUHVHDUFKSODQWHFRORJLVW86'HSDUWPHQWRI$JULFXOWXUH)RUHVW6HUYLFH3DFL¿F 1RUWKZHVW5HVHDUFK6WDWLRQ)RUHVWU\DQG5DQJH6FLHQFHV/DERUDWRU\*HNHOHU /DQH/D*UDQGH25Erika McFarlane LVDQLQGHSHQGHQWFRQWUDFWRU WK$YH1:6HDWWOH:$Blaze BakerLVDERWDQLVW86'HSDUWPHQW RI$JULFXOWXUH)RUHVW6HUYLFH7($06(QWHUSULVH7HDP=LRQ6WUHHW1HYDGD &LW\&$Randy MolinaLVDUHVHDUFKERWDQLVW UHWLUHG 86'HSDUWPHQWRI $JULFXOWXUH)RUHVW6HUYLFH3DFL¿F1RUWKZHVW5HVHDUFK6WDWLRQ)RUHVWU\6FLHQFHV /DERUDWRU\6:0DLQ6XLWH3RUWODQG25DQGJane E. Smith LVDUHVHDUFKERWDQLVW86'HSDUWPHQWRI$JULFXOWXUH)RUHVW6HUYLFH3DFL¿F 1RUWKZHVW5HVHDUFK6WDWLRQ)RUHVWU\6FLHQFHV/DERUDWRU\6:-HIIHUVRQ :D\&RUYDOOLV25

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2 Ecology and Management of Morels Harvested From the Forests of Western North America

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3 GENERAL TECHNICAL REPORT PNW-GTR-710

Table 1—Names used in this publication for distinctive western morels occurring in western North America north of Mexico

Our Morel usagea Disturbanceb cladec   6FLHQWL¿FQDPHVd Comments 1DWXUDO 1RQHRU %ODFN  M. elata   3XWDWLYHVSHFLHV$ EODFNPRUHO QRQ¿UH   M. conica    3LO]DQGRWKHUV  M. angusticeps  3LQN" e )LUH  %ODFN  M. conica   3XWDWLYHVSHFLHV% EXUQPRUHO M. angusticeps    3LO]DQGRWKHUV *UHHQ" e )LUH  %ODFN  M. conica   3XWDWLYHVSHFLHV& EXUQPRUHO M. angusticeps    3LO]DQGRWKHUV *UD\PRUHOf )LUH  8QNQRZQ ³M. atrotomentosa´g 3XWDWLYHVSHFLHV' DVXVHGE\0F.QLJKW 3LO]DQGRWKHUV  $OVRFDOOHG³IX]]\IRRW´ RU³EODFNIRRW´PRUHO 0RXQWDLQ 1RQHRU 8QNQRZQ 1RQH\HW  3XWDWLYHVSHFLHV( EORQGPRUHO QRQ¿UH 3LO]DQGRWKHUV

4 Ecology and Management of Morels Harvested From the Forests of Western North America

About Morels

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Table 2—Some non-English common names for morels

&RPPRQQDPH  &LWHGVFLHQWL¿FQDPHVa Country Referenceb $PLJDVDWDNH  M. conica   -DSDQ  .UHLVHO5ROIH DQG5ROIH %DQNDL\DQJGXMXP M. semilibera   &KLQD  +DOODQGRWKHUV &DJDUULD  MorchellaVSHFLHV  6SDLQ  .UHLVHO &ROPHQD  M. angusticeps,   0H[LFR  *X]PiQ M. esculenta, M. conica &ROPHQLOOD  MorchellaVSHFLHV  6SDLQ  .UHLVHO &ROPHQLWD  Morchella VSHFLHV  0H[LFR  *X]PiQDQG 7DSLD &XWXL\DQJGXMXQ  M. crassipes   &KLQD  +DOODQGRWKHUV (NWHPRUNHO  Morchella VSHFLHV  1RUZD\ &KDQGUD (ORWH   MorchellaVSHFLHV  0H[LFR  *X]PiQ M. esculenta, M. conica (ORWLWR   MorchellaVSHFLHV  0H[LFR  *X]PiQ M. angusticeps )XQJXOL   Morchella VSHFLHV  $QFLHQW 5ROIHDQG5ROIH 5RPH *DR\DQGXMXQ  M. elata &KLQD+DOODQGRWKHUV *XFKKLL  Morchella VSHFLHV  +LPDFKDO 3UDVDGDQGRWKHUV 3UDGHVK .DVKPLU 1RUWK,QGLD *XJXVKDPX  Morchella VSHFLHV  7LEHW  :LQNOHUc +DOEIUHLPRUFKHO M. semiliberD   *HUPDQ\ .UHLVHO +lWWPXUNOD  M. semilibera   6ZHGHQ  .RUKRQHQ +|KHPRUFKHORU M. elata *HUPDQ\6YUþHN +|KOPRUFKHO +XKWDVLHQL  MorchellaVSHFLHV  )LQODQG  .RUKRQHQ -LDQ\DQJGXMXQ  M. conica   &KLQD  +DOODQGRWKHUV .DEXWHQJKXJLVXWDN MorchellaVSHFLHV  3KLOLSSLQHV &KDQGUD .lSSFKHQPRUFKHO M. semilibera   *HUPDQ\ 'lKQFNHDQG'lKQFNH  .UHLVHO .DUWLRKXKWDVLHQL M. elata, M. conica  )LQODQG  .RUKRQHQ .HOORKXKWDVLHQL  M. semilibera   )LQODQG  .RUKRQHQ .RHVWOLFKHPRUFKHO M. deliciosa   *HUPDQ\ 'lKQFNHDQG'lKQFNH   .XFVPDJRPED  Morchella VSHFLHV  +XQJDU\ &KDQGUD /HLPDL\DEJGXMXQ M. costata   &KLQD  +DOODQGRWKHUV 0D]RUFD  M. angusticeps, M. esculenta,  0H[LFR  *X]PiQ M. conica 0D]RUTXLWD  Morchella VSHFLHV  0H[LFR  *X]PiQDQG7DSLD 0HUNHO   Morchella VSHFLHV  *HUPDQ\ :HEHU 0LNDLKWKL  Morchella VSHFLHV  2PDKD3RQFD *LOPRUH 7ULEHV1RUWK $PHULFD

6 Ecology and Management of Morels Harvested From the Forests of Western North America

Table 2—Some non-English common names for morels (continued)

&RPPRQQDPH  &LWHGVFLHQWL¿FQDPHVa Country Referenceb 0RUFKHO  Morchella VSHFLHV  *HUPDQ\ .UHLVHO

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Table 2—Some non-English common names for morels (continued)

&RPPRQQDPH  &LWHGVFLHQWL¿FQDPHVa Country Referenceb 6SRQJLDHLQKXPRUH MorchellaVSHFLHV  $QFLHQW &KDQGUD SUDWRUXPQDVFHQWHV5RPH  6SRQJLROL  MorchellaVSHFLHV  $QFLHQW*UHHFH 5ROIHDQG5ROIH RU5RPH 6SXJQROD  Morchella VSHFLHV  ,WDO\  &KDQGUD .UHLVHO :HEHU 6XpWHU   Morchella VSHFLHV  0H[LFR  0RQWR\DDQGRWKHUV  7RSSPXUNOD  Morchella VSHFLHV  6ZHGHQ  .UHLVHO M. conica, M. elata    .RUKRQHQ

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8 Ecology and Management of Morels Harvested From the Forests of Western North America

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22 Ecology and Management of Morels Harvested From the Forests of Western North America

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28 Ecology and Management of Morels Harvested From the Forests of Western North America

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32 Ecology and Management of Morels Harvested From the Forests of Western North America

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33 GENERAL TECHNICAL REPORT PNW-GTR-710

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36 Ecology and Management of Morels Harvested From the Forests of Western North America

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39 GENERAL TECHNICAL REPORT PNW-GTR-710

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 Ecology and Management of Morels Harvested From the Forests of Western North America 7RP9RONKWWSWRPYRONIXQJLQHW

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Fruiting—$VQRWHGLQWKHLQWURGXFWLRQYDULRXVIDFWRUVKDYHEHHQDVVRFLDWHGZLWK Such fruiting may PRUHOIUXLWLQJ&RQFHSWXDOO\WKHVHIDFWRUVFDQEHJURXSHGLQWR  FRQGLWLRQVWKDW represent a last-ditch IDFLOLWDWHPDVVIUXLWLQJVXFKDVORVVRIIRRGVXSSO\FKDQJHVLQVRLOS+DQGFKHP effort to reproduce LVWU\ORVVRIFRPSHWLWLRQIURPRWKHUVRLOPLFURRUJDQLVPVRUÀXVKHVRIUHDGLO\ when the morel’s food DYDLODEOHQXWULHQWV  HQYLURQPHQWDOWULJJHUVWKDWLQLWLDWHIUXLWLQJVXFKDVFKDQJHV source disappears. LQVRLOWHPSHUDWXUHRUPRLVWXUHDQG  SHUVLVWHQWFRQGLWLRQVWKDWVXSSRUWPRUHO JURZWKVXFKDVZDUPWKUDLQIDOODQGKXPLGLW\

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 GENERAL TECHNICAL REPORT PNW-GTR-710

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42 Ecology and Management of Morels Harvested From the Forests of Western North America

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43 GENERAL TECHNICAL REPORT PNW-GTR-710

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Factors that trigger fruiting—7HPSHUDWXUHDQGPRLVWXUHDUHWKRXJKWWRDFWDV VWLPXODQWVWRLQLWLDWHIUXLWLQJDQGDVUHTXLUHPHQWVIRUFRQWLQXHGIUXLWLQJ%XVFRW

44 Ecology and Management of Morels Harvested From the Forests of Western North America

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Factors that support fruiting—2QFHPRUHOVEHJLQWRIUXLWWRWDOVHDVRQDOSUR GXFWLYLW\PLJKWEHUHODWHGWRWKHDPRXQWRIUDLQIDOOGXULQJDVKRUWSHULRGRIRS WLPDOWHPSHUDWXUHV)RULQVWDQFHGXULQJWKH\HDUVWRLQQRUWKFHQWUDO 0LVVRXULWKH¿UVWGD\RIPRUHOIUXLWLQJUHOLDEO\IHOOEHWZHHQWKHWKDQGWK GD\VRIWKHFDOHQGDU\HDU PLG$SULO DQGWRWDOVHDVRQDOSURGXFWLRQZDVFORVHO\FRU UHODWHGZLWKWKHQXPEHURIUDLQIDOOHYHQWVRIJUHDWHUWKDQPPGXULQJWKHQH[W ZHHNV VHHIRRWQRWH 6XFKUDLQIDOOQRWRQO\K\GUDWHVWKHPRUHOP\FHOLXPWKDWLV QRXULVKLQJWKHJURZLQJIUXLWLQJERG\EXWOLNHO\DOVRPDLQWDLQVKLJKKXPLGLW\OHY HOVQHDUWKHVRLOVXUIDFHVRWKHJURZLQJPRUHOGRHVQRWGU\RXWDQGVKULYHO

Fruiting body—$PRUHOPXVKURRP IUXLWLQJERG\RUVSRURFDUS LVWKHUHSURGXF WLYHVWUXFWXUHWKDWMorchellaVSHFLHVXVHWRSURGXFHDQGGLVVHPLQDWHWKHLUVSRUHV 0RUHOIUXLWLQJERGLHVVHHPDEOHWRDULVHGLUHFWO\IURPGLIIXVHP\FHOLDIURPGHQVH PXIIVRIP\FHOLDLQWKHVRLORUYLDUKL]RPRUSKVRUK\SKDHWKDWWUDQVSRUWQXWULHQWV IURPVFOHURWLDRUP\FHOLDOPXIIVVXUURXQGLQJSODQWURRWV %XVFRW%XVFRWDQG %HUQLOORQ9RONDQG/HRQDUG 0RUHOP\FHOLDDQGPXIIVDSSHDUWRVKULQN DVWKHIUXLWLQJERGLHVGHYHORS %XVFRW VRLWLVSUREDEOHWKDWZDWHUF\WRSODVP DQGQXWULHQWVDUHEHLQJWUDQVORFDWHGWRWKHVSRURFDUSDVLWGHYHORSV

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45 GENERAL TECHNICAL REPORT PNW-GTR-710

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 Ecology and Management of Morels Harvested From the Forests of Western North America

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 GENERAL TECHNICAL REPORT PNW-GTR-710

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52 Ecology and Management of Morels Harvested From the Forests of Western North America

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53 GENERAL TECHNICAL REPORT PNW-GTR-710

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54 Ecology and Management of Morels Harvested From the Forests of Western North America

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55 GENERAL TECHNICAL REPORT PNW-GTR-710

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58 Ecology and Management of Morels Harvested From the Forests of Western North America

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59 GENERAL TECHNICAL REPORT PNW-GTR-710

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62 Ecology and Management of Morels Harvested From the Forests of Western North America

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63 GENERAL TECHNICAL REPORT PNW-GTR-710

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64 Ecology and Management of Morels Harvested From the Forests of Western North America

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65 GENERAL TECHNICAL REPORT PNW-GTR-710

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Table 3—Estimated quantities of morels harvesteda and value of commercial permits sold on national forests in and during 2004 and 2005

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82 Ecology and Management of Morels Harvested From the Forests of Western North America

Policy and Regulation

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83 GENERAL TECHNICAL REPORT PNW-GTR-710

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84 Ecology and Management of Morels Harvested From the Forests of Western North America

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85 GENERAL TECHNICAL REPORT PNW-GTR-710

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86 Ecology and Management of Morels Harvested From the Forests of Western North America

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Regional Summaries

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88 Ecology and Management of Morels Harvested From the Forests of Western North America

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96 Ecology and Management of Morels Harvested From the Forests of Western North America

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98 Ecology and Management of Morels Harvested From the Forests of Western North America

Table 4—Number and value of mushrooma-harvesting permits sold by the tri-forest permit collaboration of the Malheur, Umatilla, and Wallowa-Whitman National Forests

Year Permits sold Value Number Dollars                                                                                  a $OWKRXJKRWKHUPXVKURRPVDUHFROOHFWHGRQWKHVHIRUHVWVPRUHOVDUHWKH PRVWFRPPRQO\FROOHFWHGDQGLQWKHODUJHVWTXDQWLWLHV

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Table 5—Unbiased stand-level estimates of mean morel productivity (counts DQGIUHVKZHLJKWSHUDFUHSHU\HDU DQGSHUFHQWFRQ¿GHQFHLQWHUYDOVIRUQLQH forest stands in northeastern Oregon that were selected to represent three stand conditionsa

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Literature Cited39 Acker, R. 1986+DUYHVWLQJZLOGHGLEOHPXVKURRPVLQ:DVKLQJWRQDQLVVXH SDSHU3UHSDUHGIRUWKH:LOG(GLEOH0XVKURRP7DVN*URXS1RYHPEHU 2O\PSLD:$'HSDUWPHQWRI1DWXUDO5HVRXUFHV±

Aegerter, M. 1995.+RZPDQ\PRUHOVSHFLHV"0XVKURRP7KH-RXUQDORI:LOG 0XVKURRPLQJ±

Alaska Wildland Fire Coordination Group. 1998.$ODVND,QWHUDJHQF\:LOGODQG )LUH0DQDJHPHQW3ODQKWWSZZZGQUVWDWHDNXVIRUHVWU\SGIV$,)03SGf

Alexander, S.J.; Fight, R.D. 2003.0DQDJLQJDFFHVVWRQRQWLPEHUIRUHVW SURGXFWV,Q0RQVHUXG5$+D\QHV5:-RKQVRQ$&HGV&RPSDWLEOH IRUHVWPDQDJHPHQW1RUZHOO0$.OXZHU$FDGHPLF3XEOLVKHUV±

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Alexander, S.J.; Weigand, J.F.; Blatner, K.A. 2002b. 1RQWLPEHUIRUHVWSURGXFWV FRPPHUFH,Q-RQHV(70F/DLQ5-:HLJDQG-)HGV1RQWLPEHUIRUHVW SURGXFWVLQWKH8QLWHG6WDWHV/DZUHQFH.68QLYHUVLW\3UHVVRI.DQVDV± 

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Alexopoulos, C.J.; Mims, C.W.; Blackwell, M. 1996.,QWURGXFWRU\P\FRORJ\WK HG1HZ

Amaranthus, M.; Pilz, D. 1996. 3URGXFWLYLW\DQGVXVWDLQDEOHKDUYHVWRIZLOG PXVKURRPV,Q3LO]'0ROLQD5HGV0DQDJLQJIRUHVWHFRV\VWHPVWR FRQVHUYHIXQJXVGLYHUVLW\DQGVXVWDLQZLOGPXVKURRPKDUYHVWV*HQ7HFK5HS 31:*753RUWODQG2586'HSDUWPHQWRI$JULFXOWXUH)RUHVW6HUYLFH 3DFL¿F1RUWKZHVW5HVHDUFK6WDWLRQ±

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Apfelbaum, S.I.; Haney, A.; Dole, R.E. 1984.$VFRFDUSIRUPDWLRQE\DIWHUZLOG¿UH0LFKLJDQ%RWDQLVW  ±

Apple, R.W., Jr. 1998.2QWKHWUDLORIWKHPDJQL¿FHQWPRUHO1HZ

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Arora, D.K.; Bridge, P.D.; Bhatnagar, D., eds. 2004.+DQGERRNRIIXQJDO ELRWHFKQRORJ\QGHG1HZ

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