Fulvophyton

Fulvophyton is a genus of lichen-forming fungi in the family Roccellographaceae. It has 11 species. Fulvophyton is characterised by its crust-like thallus, which is often pale yellowish-brown in colour. This genus features a from the green algal genus Trentepohlia and exhibits a unique arrangement of reproductive structures.

Taxonomy
The genus was circumscribed in 2011 by lichenologists Damien Ertz and Anders Tehler, as part of a molecular phylogenetic-based restructuring of the order Arthoniales. The genus encompasses species that were previously classified in the genus Sclerophyton, as proposed by Laurens Sparrius in 2004. However, these species deviate from the type of that genus due to the presence of rounded to ellipsoid ascomata, which are often covered in white, and a hyaline or pale. The type species of Fulvophyton is F. stalactinum, a lichen first described by William Nylander in 1855 (as Chiodecton stalactinum).

Description
The thallus of Fulvophyton is crustose and lacks a ; it often has an algal-free zone formed by interwoven hyphae. The ascomata are or shortly, and immersed in the thallus, ranging from 0.05 to 0.6 by 0.05–0.3 mm in size. The hymenial is usually exposed and covered with white.

The is thin, hyaline or brown, measuring between 5–35 μm. The is hyaline or pale brown, while the  displays a brown colouration. are branched and anastomosing. Asci are cylindrical to and 8-spored, measuring 60–120 by 12–25 μm.

are hyaline, fusiform or oblong, straight or slightly curved, featuring 3–7 (up to 12). They exhibit a macrocephalic ascospores septation pattern, measuring 20–50 by 5–9 μm, and are surrounded by a distinct gelatinous sheath. are immersed and punctiform, appearing black. are hyaline,, and curved, with dimensions of 12–18 by 0.8–1 μm.

Species
, Species Fungorum (in the Catalogue of Life) accept 11 species of Fulvophyton.
 * Fulvophyton calcicola
 * Fulvophyton cerei
 * Fulvophyton desertorum
 * Fulvophyton klementii
 * Fulvophyton macrosporum
 * Fulvophyton murex
 * Fulvophyton rostratum
 * Fulvophyton serusiauxii – Mexico
 * Fulvophyton sorediatum
 * Fulvophyton stalactinum
 * Fulvophyton subseriale