a former name for monocotyledon
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
How to use endogen in a sentence
The endogen flower is nearly always divided in threes, like the lily, which has six petals.
And corn belongs to the grass family, too, and corn is an endogen, for it has a big pith instead of rings.
When they run side by side smoothly, as they do in corn and grass, it means that the plant is an endogen.
Moreover the new substance is added to the centre of the stem, or within the old; hence the term endogen (, within, ).An Elementary Text-book of the Microscope | John William Griffith
Smilax belongs to a transition class, partaking somewhat of the nature of endogen and of exogen.