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    <element id="LARK_SummaryOfIncomeTaxesPaidNetOfRefundsTableTextBlock" name="SummaryOfIncomeTaxesPaidNetOfRefundsTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_ScheduleOfStockOptionExercisedAdditionalInformationTableTextBlock" name="ScheduleOfStockOptionExercisedAdditionalInformationTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_ScheduleOfFairValueContractualBalanceAndGainLossOnLoansHeldForSaleTableTextBlock" name="ScheduleOfFairValueContractualBalanceAndGainLossOnLoansHeldForSaleTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_ScheduleOfGainsAndLossesFromChangesInFairValueOfDerivativeFinancialInstrumentsTableTextBlock" name="ScheduleOfGainsAndLossesFromChangesInFairValueOfDerivativeFinancialInstrumentsTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_InvestmentSecuritiesAbstract" name="InvestmentSecuritiesAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_InvestmentSecuritiesTable" name="InvestmentSecuritiesTable" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" />
    <element id="LARK_LoansAndLeasesReceivableNetDeferredLoanFeesAndLoansInProcess" name="LoansAndLeasesReceivableNetDeferredLoanFeesAndLoansInProcess" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_FinancingReceivableAllowanceForCreditLossesImpact" name="FinancingReceivableAllowanceForCreditLossesImpact" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_ScheduleOfAmortizedCostBasisAndCollateralTypeOfFinancialAssetsConsideredCollateralDependentAbstract" name="ScheduleOfAmortizedCostBasisAndCollateralTypeOfFinancialAssetsConsideredCollateralDependentAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
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    <element id="LARK_FinancingReceivableCollateral" name="FinancingReceivableCollateral" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_NotesReceivablePastDue" name="NotesReceivablePastDue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_FinancingReceivablePastDueOrNotAccruing" name="FinancingReceivablePastDueOrNotAccruing" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_FinancingReceivableByOriginationYearNonClassified" name="FinancingReceivableByOriginationYearNonClassified" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_FinancingReceivableByOriginationYearClassified" name="FinancingReceivableByOriginationYearClassified" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_FinancingReceivableByOriginationYearTotals" name="FinancingReceivableByOriginationYearTotals" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_FinancingReceivableByOriginationYearChargeOff" name="FinancingReceivableByOriginationYearChargeOff" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_UnfundedLoanCommitments" name="UnfundedLoanCommitments" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_FinancingReceivableModifiedPaymentInterestDeferralPeriodDescription" name="FinancingReceivableModifiedPaymentInterestDeferralPeriodDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_FinancingReceivableModifiedPaymentInterestDeferralPeriod" name="FinancingReceivableModifiedPaymentInterestDeferralPeriod" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_LoansAndLeasesReceivableRelatedPartiesRepayments" name="LoansAndLeasesReceivableRelatedPartiesRepayments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_FinancingReceivableModificationsAllowance" name="FinancingReceivableModificationsAllowance" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_StandByLettersOfCredit" name="StandByLettersOfCredit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_MortgageLoanServicingAbstract" name="MortgageLoanServicingAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
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    <element id="LARK_AssumptionForFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesWeightedAverageDefaultRate" name="AssumptionForFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesWeightedAverageDefaultRate" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_ProvisionReserves" name="ProvisionReserves" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="LARK_LandUsefulLife" name="LandUsefulLife" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_TimeDepositsLiabilitiesDescription" name="TimeDepositsLiabilitiesDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
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    <element id="LARK_FederalHomeLoanBankBorrowingsAbstract" name="FederalHomeLoanBankBorrowingsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
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    <element id="LARK_OtherBorrowingsTable" name="OtherBorrowingsTable" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" />
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    <element id="LARK_DebtInstrumentMaximumMonthEndBalance" name="DebtInstrumentMaximumMonthEndBalance" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_ServiceChargesOnDepositsOverdraftFees" name="ServiceChargesOnDepositsOverdraftFees" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="LARK_IncomeTaxReconciliationNondeductibleExpenseTaxExemptInterestNet" name="IncomeTaxReconciliationNondeductibleExpenseTaxExemptInterestNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTaxExemptInterestNet" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTaxExemptInterestNet" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
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    <element id="LARK_IncomeTaxReconciliationUnrecognizedTaxBenefitsRate" name="IncomeTaxReconciliationUnrecognizedTaxBenefitsRate" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
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    <element id="LARK_FederalHomeLoanBankStockDividends" name="FederalHomeLoanBankStockDividends" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="LARK_IncomeTaxBenefitWithPenaltiesAndInterestExpense" name="IncomeTaxBenefitWithPenaltiesAndInterestExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="LARK_DeferredCompensationLiability" name="DeferredCompensationLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_DeferredCompensationArrangementWithIndividualCompensationIncome" name="DeferredCompensationArrangementWithIndividualCompensationIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2Beginning" name="SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2Beginning" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2Ending" name="SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2Ending" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptionsInNextTwelveMonths" name="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptionsInNextTwelveMonths" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationRecognizedSharebasedAwardsOtherThanOptionsInTwoYear" name="EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationRecognizedSharebasedAwardsOtherThanOptionsInTwoYear" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationRecognizedSharebasedAwardsOtherThanOptionsInThreeYear" name="EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationRecognizedSharebasedAwardsOtherThanOptionsInThreeYear" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationRecognizedSharebasedAwardsOtherThanOptionsInFourthYear" name="EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationRecognizedSharebasedAwardsOtherThanOptionsInFourthYear" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_UnrecognizedRestrictedStockExpenseAndNumberofNonvestedRestrictedStockDividendPercent" name="UnrecognizedRestrictedStockExpenseAndNumberofNonvestedRestrictedStockDividendPercent" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_InterestbearingDepositsAtOtherBanks" name="InterestbearingDepositsAtOtherBanks" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_NonmaturityDepositsFairValueDisclosure" name="NonmaturityDepositsFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_RepurchaseAgreementsFairValueDisclosure" name="RepurchaseAgreementsFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_AvailableforsaleInvestmentSecuritiesAbstract" name="AvailableforsaleInvestmentSecuritiesAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
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    <element id="LARK_LoansReceivableHeldForSaleContractualBalance" name="LoansReceivableHeldForSaleContractualBalance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="LARK_FairValueMeasurementValuationTechniques" name="FairValueMeasurementValuationTechniques" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
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    <element id="LARK_TierOneRisksBasedCapitalsRequiredToBeWellCapitalized" name="TierOneRisksBasedCapitalsRequiredToBeWellCapitalized" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="LARK_TierOneRiskBasedCapitalRequiredForCapitalAdequacyWithBufferToRiskWeightedAssets" name="TierOneRiskBasedCapitalRequiredForCapitalAdequacyWithBufferToRiskWeightedAssets" nillable="true" xbrli:periodType="instant" type="xbrli:pureItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_IncreaseDecreaseInUndistributedEquity" name="IncreaseDecreaseInUndistributedEquity" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_IncreaseDecreaseInUndistributedEquityOfNonbankSubsidiary" name="IncreaseDecreaseInUndistributedEquityOfNonbankSubsidiary" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_IncreaseDecreaseInUndistributedEquityOfSubsidiaries" name="IncreaseDecreaseInUndistributedEquityOfSubsidiaries" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_ChangesInInterestbearingdeposit" name="ChangesInInterestbearingdeposit" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_PretaxLossOnFraudulentActivity" name="PretaxLossOnFraudulentActivity" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_AcquiredLoansPolicyTextBlock" name="AcquiredLoansPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_TwoThousandTwentyFiveStockIncentivePlanMember" name="TwoThousandTwentyFiveStockIncentivePlanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_ProceedsFromPaymentsForInterestBearingDepositsInBanks" name="ProceedsFromPaymentsForInterestBearingDepositsInBanks" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="LARK_ScheduleOfComplianceWithRegulatoryCapitalRequirementsForUnderBankingRegulationsTextBlock" name="ScheduleOfComplianceWithRegulatoryCapitalRequirementsForUnderBankingRegulationsTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_FinancingReceivableRecordedInvestmentPastDueAndStillAccruing" name="FinancingReceivableRecordedInvestmentPastDueAndStillAccruing" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_ImpairmentOfTangibleAssetsOtherDescriptor" name="ImpairmentOfTangibleAssetsOtherDescriptor" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_ScheduleOfComparisonOfCompanyRegulatoryCapitalToMinimumCapitalRequirementTableTextBlock" name="ScheduleOfComparisonOfCompanyRegulatoryCapitalToMinimumCapitalRequirementTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="LARK_SecuredAndUnsecuredMember" name="SecuredAndUnsecuredMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
</schema>
