Category: I

Coating of mineral (non-organic) matter.  

Made stout [unusual term].  

Thick, stout; (Of a pollen grain) with thickened margins around the aperture(s).  

Not very clear. Not clearly visible or easily perceived.  

Missing some essential part.  

Not protruding from the surrounding structure or organ. When of the parts in question some do not project beyond others.  

Bent down at an angle from the horizontal.  

Bent downward [unusual term].  

Cut rather deeply, this term is intermediate between toothed and lobed. Having a leaf margin that is deeply and sharply notched. Deeply and sharply cut. Deeply and irregularly cut. To cut into something.  

From the Latin meaning ‘of uncertain seat’, i.e. of unclear taxonomic position. Literally, of uncertain seating: a group of uncertain taxonomic placement.