William Anderson Weymouth (Launceston, Tasmania, 24 March 1841 – Hobart, Tasmania, 24 May 1928) was a distinguished amateur botanist.
 He worked as an insurance assessor with the National Mutual Insurance Company.
 In 1887 he began collecting mosses and lichens, sending them to several European bryologists including Antonio Jatta in Italy, and Viktor Brotherus in Finland.
 Jatta named a species of lichen in honour of Weymouth called "Ochrolechia weymouthii", and Brotherus named the moss genus "Weymouthia".
 Weymouth published several papers on mosses from Tasmania.
Thoracochromis is a fish genus of haplochromine cichlids that are endemic to Africa.
 Most species are from rivers in Angola and Namibia, or the Congo River Basin in Central Africa, but one ("T. wingatii") is from the Nile.
 Many species have been moved between this genus and "Haplochromis", and while some consensus has been reached in recent years, their mutual delimitation is still far from settled.
Spiders of the genus Argyrodes (Theridiidae), also called dewdrop spiders, occur worldwide.
 They are best known as kleptoparasites: they steal other spiders' prey.
 They invade and reside in their host's web even though they can spin their own webs.
 However, the relationship can sometimes be commensal or even mutual since the dewdrop spider can feed on small trapped insects that are not eaten by the host.
 Some species can even prey upon the host.
 Many species are black with silvery markings.
 Most species are relatively small.
 For example, "A. incursus" has a body length of 3–4.5 mm while "A. fissifrons" has a body length of about 12 mm.
Lomatia is a genus of 12 species of evergreen flowering plants in the protea family Proteaceae.
 Within the family, they have been placed, alone, in their own subtribe, Lomatiinae according to Johnson & Briggs 1975 classification of the family and subsequently in Flora of Australia (1995).
Astatotilapia is a genus of fish in the family Cichlidae found in Eastern and Northern Africa, and Western Asia.
 Many species have been moved between this genus and "Haplochromis", and while some consensus has been reached in recent years, their mutual delimitation is still far from settled.
 Based on mtDNA, "Astatotilapia" as currently defined is polyphyletic.
Nemophila is a genus found in the flowering plant family Boraginaceae.
Marasmius lomatiae is a species of fungus in the large agaric genus "Marasmius".
 It is found in Argentina, where it grows on the dead leaves of "Lomatia", "Luma" and "Nothofagus" species.
 The fungus was described as new to science in 1969 by mycologist Rolf Singer.

Question: Lomatia and Nemophila, are a species of which mutual genus?
Answer: flowering plants