Fusitheca

Fusitheca was a genus of land plant with branching axes.^[1] It is known from charcoalified Early Devonian deposits, its type locality being the Brown Clee Hill lagerstätten.^[2] Its spores form smooth-walled, unfused, naked dyads.^[3] Its axis comprises length-parallel filaments, and their dichotomies are T-shaped, with the branches bending to continue upwards.^[3]

Fusitheca Temporal range: Early Devonian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Stem group:	†Rhyniophytes
Form taxon:	†Cooksonioidea
Genus:	†Fusitheca Wellman et al. 1998
Species
F. fanningiae Wellman et al. 1998 (Type)

References

1. Boyce, C.K. (2008). "How green was Cooksonia? The importance of size in understanding the early evolution of physiology in the vascular plant lineage". Paleobiology. 34 (2): 179–194. doi:10.1666/0094-8373(2008)034[0179:HGWCTI]2.0.CO;2. ISSN 0094-8373.
2. Glasspool, I.; Edwards, D.; Axe, L. (2006). "Charcoal in the Early Devonian: A wildfire-derived Konservat–Lagerstätte". Review of Palaeobotany and Palynology. 142 (3–4): 131–136. doi:10.1016/j.revpalbo.2006.03.021.
3. Wellman, C. H.; Edwards, D.; Axe, L. (1998). "Permanent dyads in sporangia and spore masses from the Lower Devonian of the Welsh Borderland". Botanical Journal of the Linnean Society. 127 (2): 117–147. doi:10.1111/j.1095-8339.1998.tb02092.x.