Magnolia Seed Pod
1. Annonalceae bilianas Annoya, Amonidium
The Bilianus Annoya, species is a homophalic-based subgenus of Indocartella. Monophyli and all relative sub classes appear to be a combination of unbound sexualogical interspecies breeding.
2. The Bilianus Annoya, is homophalic-based
Monophyli and all relative subclasses appear to be a subgenus of Indocartella
I have identified the seed pod to be that from a Magnolia tree.
Anonidium is a genus of plant in family Annonaceae, the Anonidium usambarense is an extinct species native to Tanzania. A lot reasons may have influenced the fact this fruit grew on Planet 4. One of them is that these are one of the oldest flowering species of plant in the world, that it even predates Bees.
This entry from David suggests the interbreeding or grafting of the Custard Apple onto the Magnolia, an interesting observation of artificially altering a naturally occurring product. Which may be suggesting David could have been influenced by this, the Engineers genetically modifying plants or nature doing it.
What it could also mean is the existence of the Ovomorphs before the Queen, that there’s another way for this plant to propagate and survive, Just like the Alien. Also the fact that the Alien predates David creating it, or at least in the form of the Deacon in the mural. And the eggs and facehuggers contained in the mural predates David creating them.
The carpels of the magnolia are tough to avoid damage from pollinating beetles, because of this seeds that are fossilised have been found dating back 20 million years. Plants in its group Magnoliaceae date to 95 million years ago.
The bark and flower buds of M. officinalis have long been used in traditional Chinese medicine, where they are known as hou po (厚朴). In Japan, kōboku, M. obovata, has been used in a similar manner. 
- Bernhardt, P. (2000). “Convergent evolution and adaptive radiation of beetle-pollinated angiosperms”(PDF). Plant Systematics and Evolution. 222 (1–4): 293–320. doi:10.1007/bf00984108. Archived from the original(PDF) on 2015-12-23.
- Crane, P.R. (1988). “The phylogenetic position and fossil history of the Magnoliaceae”. In Hunt, David R. Magnolias and their allies: Proceedings of an International Symposium, Royal Holloway, University of London, Egham, Surrey, U.K., 12-13 April 1996. Milbourne Port. p. 21. ISBN9780951723487. OCLC40781614.