variationtotheirordinaryfoliage。Thistendency，however，differsmuchinthevarietiesofeventhesamespecies;forinstance，thegolden—stripedvarietyofEuonymusjaponicus\"isveryliabletorunbacktothegreen—
leaved，whilethesilver—stripedvarietyhardlyeverchanges。\"（11/67。
’Gardener’sChron。’1844page86。）Ihaveseenavarietyoftheholly，withitsleaveshavingacentralyellowpatch，whichhadeverywherepartiallyrevertedtotheordinaryfoliage，sothatonthesamesmallbranchthereweremanytwigsofbothkinds。Inthepelargonium，andinsomeotherplants，variegationisgenerallyaccompaniedbysomedegreeofdwarfing，asiswellexemplifiedinthe\"Dandy\"pelargonium。Whensuchdwarfvarietiessportbackbybudsorsuckerstotheordinaryfoliage，thedwarfedstaturestillremains。（11/68。Ibid1861page963。）Itisremarkablethatplantspropagatedfrombrancheswhichhaverevertedfromvariegatedtoplainleaves（11/69。Ibid1861page433;’CottageGardener’1860page2。）donotalways（ornever，asoneobserverasserts）perfectlyresembletheoriginalplain—leavedplantfromwhichthevariegatedbrancharose:itseemsthataplant，inpassingbybud—variationfromplainleavestovariegated，andbackagainfromvariegatedtoplain，isgenerallyinsomedegreeaffectedsoastoassumeaslightlydifferentaspect。
BUD—VARIATIONBYSUCKERS，TUBERS，ANDBULBS。
Allthecaseshithertogivenofbud—variationinfruits，flowers，leaves，andshoots，havebeenconfinedtobudsonthestemsorbranches，withtheexceptionofafewcasesincidentallynoticedofvaryingsuckersintherose，pelargonium，andchrysanthemum。Iwillnowgiveafewinstancesofvariationinsubterraneanbuds，thatis，bysuckers，tubers，andbulbs;notthatthereisanyessentialdifferencebetweenbudsaboveandbeneaththeground。Mr。SalterinformsmethattwovariegatedvarietiesofPhloxoriginatedassuckers;butIshouldnothavethoughttheseworthmentioning，hadnotMr。Salterfound，afterrepeatedtrials，thathecouldnotpropagatethemby\"root—joints，\"whereas，thevariegatedTussilagofarfaracanthusbesafelypropagated（11/70。M。Lemoinequotedin’Gardener’sChronicle’1867page74haslatelyobservedthattheSymphytumwithvariegatedleavescannotbepropagatedbydivisionoftheroots。Healsofoundthatoutof500plantsofaPhloxwithstripedflowers，whichhadbeenpropagatedbyroot—division，onlysevenoreightproducedstripedflowers。SeealsoonstripedPelargoniums’Gardener’sChronicle’1867page1000。）;butthislatterplantmayhaveoriginatedasavariegatedseedling，whichwouldaccountforitsgreaterfixednessofcharacter。TheBarberry（Berberisvulgaris）offersananalogouscase;thereisawell—knownvarietywithseedlessfruit，whichcanbepropagatedbycuttingsorlayers;butsuckersalwaysreverttothecommonform，whichproducesfruitcontainingseeds。（11/71。Anderson’RecreationsinAgriculture’volume5page152。）Myfatherrepeatedlytriedthisexperiment，andalwayswiththesameresult。I