De [[Angiospermae|angiospermatibus]], Illud '''Hypanthium '''{{sfn|Foster|2014|loc=[http://plant-phytography.blogspot.ca/2012/10/hypanthium-cup-shaped-or-tubular.html Hypanthium]}}<ref>{{cite book|author1=Beentje, H.|author2=Williamson, J.|year=2010|title=The Kew Plant Glossary: an Illustrated Dictionary of Plant Terms|publisher=Kew Publishing|location=Royal Botanic Gardens, Kew}}</ref><ref>{{cite book|author1=Hickey, M.|author2=King, C.|year=2001|title=The Cambridge Illustrated Glossary of Botanical Terms|publisher=Cambridge University Press}}</ref> structura est quodquid cum Portionibus Basalibus [[Sepalum|Calycis]], Corolla, [[Stamen (botanice)|Staminibus]]<nowiki/>que tubum instar-calicis format. Hic appellatur Tubus Corollae aut [[Sepalum|Tubus Calycis]].Illud saepe Nectaria [[plantae]] continet. Praesens in multis speciebus florentibus, illud autem in dimensionibus structuralibus adspectuque variat.{{sfn|Cronquist|1981}} Hoc differendum inter species particulares hypanthiorum usum-est pro identificatione. Aliquae formae [[Geometria|geometricae]] figurae obconicae sunt quam id toyon et alii figurae-paterae sunt quam ea ''Mitella caulescens''.
