(a.) of or pertaining to Castalia, a mythical fountain of inspiration on Mt. Parnassus sacred to the Muses.

Alcaic Anacreontic Arcadian Castalian English sonnet Homeric Horatian ode Hudibrastic Italian sonnet Petrarchan sonnet Pierian Pindaric Pindaric ode Sapphic ode Shakespearean sonnet Theocritean agrarian agrestic agricultural alba anacreontic arcadian balada ballad ballade bardic boor bumpkin campestral canso chanson clerihew clod clodhopper clown countrified country country bumpkin didactic dirge dithyramb dithyrambic dramatic eclogic eclogue elegiac elegy epic epigram epithalamium epode epopee epopoeia epos farm farmer genuine georgic ghazel haiku hayseed heroic hick hillbilly homespun idyll idyllic inartificial jingle limerick looby lout lowland lyric madrigal mock-heroic monody narrative narrative poem native natural naturelike nursery rhyme ode outland palinode pastoral pastoral elegy pastorela pastourelle poem poetic poetico-mystical poetico-mythological poetico-philosophic poetlike prothalamium provincial rhapsodic rhyme rondeau rondel roundel roundelay rube runic rural rustic sapphic satire sestina skaldic sloka song sonnet sonnet sequence tanka tenso tenzone threnody triolet troubadour poem unadorned unaffected unartificial unassuming undesigning undisguising undissembling undissimulating unembellished unfeigning unpretending unpretentious unspoiled unvarnished upland verse verselet versicle villanelle virelay yokel