1) Decumbent 2) Lying against something 3) Lying down 4) Reclining 5) Recumbent 6) Unerect 
• (a.) Leaning or reclining, as the ancients did at their meals. • (a.) Lying against anything, as one part of a leaf against another leaf. • (n.) One who reclines at table.
a term referring to seeds in which the embryonic root is wrapped around and lies along the edges of the two cotylodons (compare incumbent)
<botany> The orientation of an embryo, with the radicle lying against the edges of the two cotyledons. ... (15 Jan 1998) ... 
Ac·cum'bent noun One who reclines at table. Ac·cum'bent (-b e nt) adjective 1. Leaning or reclining, as the ancients did at their meals. « The Roman . . . accumbent posture in eating. Arbuthnot. » 2. (Botany) Lying against anything, as one part of a leaf against another leaf. Gray.
Lying against; said of cotyledons when the edges are placed against the radicle.
[adj] - lying down
accumbent 1. Lying down; in a position of comfort or rest. 2. Lying down; reclining. 3. In botany, lying or leaning against something; such as, accumbent cotyledons.
decumbent adjective lying down; in a position of comfort or rest
reclining; recumbent: accumbent posture. · lying against something.