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Harvard Papers in Botany Volume 17, Number 2 December 2012 A Publication of the Harvard University Herbaria Including The Journal of the Arnold Arboretum Dedicatoria to Carl and Jane Luer 219 Ihsan A. Al-Shehbaz A synopsis of the South American Descurainia and description of the 221 Colombian new species D. cleefii (Brassicaceae) Lepidium galapagoensis (Brassicaceae), a new species from Ecuador 231 Gustavo A. Romero-González and Thiago E. C. Meneguzzo Novelties in the Orchid Flora of Venezuela IV— 235 Reinstatement of Otostylis alba (Orchidaceae, Zygopetalinae) Pedro Luís Rodrigues De Moraes The Lauraceae collected in Brazil by Ludwig Riedel—II. Ocotea 245 Gerardo A. Aymard C. and Elio Sanoja A new species of Ormosia (Leguminosae: Papilionoideae, Sophoreae) 275 from the Guayana Shield, Bolivar State, Venezuela Stephen P. Bush and Hannah Madden Notes on the Flowers and Distribution of the Caribbean Island Endemic 281 Ipomoea sphenophylla (Convolvulaceae) Eliana Ramos and Xavier Cornejo Neotropical Sabiaceae: Three new species and a new variety of Meliosma 283 Basil Stergios and Miguel Alejandro Niño Contributions to South American Caesalpiniaceae—VIII. Campsiandra cowaniana 295 A new species from the Peruvian Amazon basin Karen Laubengayer, Scott Zona, Eugenio Santiago-Valentín, Chad Husby, and Javier Francisco-Ortega Morphometric analysis of Aiphanes minima (Arecaceae) across the Antilles 299 Carlyle A. Luer and A. L. V. Toscano de Brito Miscellaneous new species in the Pleurothallidinae (Orchidaceae) from Brazil 307 (Continued on next page)

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HarvardPapersinBotanyVolume17,Number2 December2012APublicationoftheHarvardUniversityHerbariaIncluding

TheJournaloftheArnoldArboretum

DedicatoriatoCarlandJaneLuer 219

IhsanA.Al-ShehbazAsynopsisoftheSouthAmericanDescurainiaanddescriptionofthe 221ColombiannewspeciesD.cleefii(Brassicaceae)

Lepidiumgalapagoensis(Brassicaceae),anewspeciesfromEcuador 231

GustavoA.Romero-GonzálezandThiagoE.C.MeneguzzoNoveltiesintheOrchidFloraofVenezuelaIV— 235ReinstatementofOtostylisalba(Orchidaceae,Zygopetalinae)

PedroLuísRodriguesDeMoraesTheLauraceaecollectedinBrazilbyLudwigRiedel—II.Ocotea 245

GerardoA.AymardC.andElioSanojaAnewspeciesofOrmosia(Leguminosae:Papilionoideae,Sophoreae) 275fromtheGuayanaShield,BolivarState,Venezuela

StephenP.BushandHannahMaddenNotesontheFlowersandDistributionoftheCaribbeanIslandEndemic 281Ipomoeasphenophylla(Convolvulaceae)

ElianaRamosandXavierCornejoNeotropicalSabiaceae:ThreenewspeciesandanewvarietyofMeliosma 283

BasilStergiosandMiguelAlejandroNiñoContributionstoSouthAmericanCaesalpiniaceae—VIII.Campsiandracowaniana 295AnewspeciesfromthePeruvianAmazonbasin

KarenLaubengayer,ScottZona,EugenioSantiago-Valentín,ChadHusby,andJavierFrancisco-Ortega

MorphometricanalysisofAiphanesminima(Arecaceae)acrosstheAntilles 299

CarlyleA.LuerandA.L.V.ToscanodeBritoMiscellaneousnewspeciesinthePleurothallidinae(Orchidaceae)fromBrazil 307

(Continuedonnextpage)

(Continuedfrompreviouspage)

LuísMendonçadeCarvalho,FranciscaMariaFernandes,MariadeFátimaNunes,andChristopherMillsTheQueenandtheFlowerPower—Thesymbolicuseofplants 317intheCourtofSt.James’s,UnitedKingdom

HannoSchaefer,BruceBartholomew,andDavidE.BouffordIndofevilleajiroi(Cucurbitaceae),anewfloraloilproducingspecies 323fromnortheasternMyanmar

CarlyleA.LuerandLisaThoerleMiscellaneousnewspeciesinthePleurothallidinae(Orchidaceae) 333

IndextoNewNamesandCombinations 369