
1) Class 2) Subclass alismatidae
Found on
https://www.crosswordclues.com/clue/alismatidae

Alismatidae is a botanical name at the rank of subclass. Circumscription of the subclass will vary with the taxonomic system being used (there are many such systems); the only requirement being that it includes the family Alismataceae. It is a relatively new name: earlier systems, such as the Engler and Wettstein systems, used the name Helobiae fo...
Found on
http://en.wikipedia.org/wiki/Alismatidae

(from the article `angiosperm`) ...typically with a single cotyledon; other characteristics as given in the accompanying table. The class is named for the genus Lilium.Subclass ... The unique septal nectary of many monocots not only helps to unify the class but also to strengthen the theory held by some that the subclass ... [2 relat...
Found on
http://www.britannica.com/eb/a-z/a/46

[
n] - one of four subclasses or superorders of Monocotyledones
Found on
http://www.webdictionary.co.uk/definition.php?query=Alismatidae
subclass Alismatidae noun one of four subclasses or superorders of Monocotyledones; comprises about 500 species in 14 families of aquatic and semiaquatic herbs
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.