OCHROLECHIA A. Massal.

Ochrolechia africana Vain. image of caratBrodo (1991): cited from St. Clair Co.; 2 mapped records from SW Mo. image of caratLadd (1996): Phelps Co. image of caratWetmore (1992a): Taney Co. [as O. verrucosa].

Ochrolechia arborea (Kreyer) Almb. image of caratLadd (1996): Phelps Co. image of caratWetmore (1992a): Taney Co.

Ochrolechia pallescens - mapped from extreme SW Mo. by Howard (1970); this is the basis for the literature report in Gier & Kendrick (1972). According to Brodo (1991), this species does not occur in North America, although the name has been misapplied to a variety of corticolous taxa of Ochrolechia.

Ochrolechia parella - mapped from extreme SW Mo. by Howard (1970); this is the basis for the literature report in Gier & Kendrick (1972). According to Brodo (1991), this taxon is not known from North America, and most of the Howard citations are referable to O. pseudopallescens or O. juvenalis, neither of which is currently known from Missouri.

Ochrolechia tartarea (L.) A. Massal. image of caratBerry (1937): Jefferson Co. image of caratFink (1919): Iron Co. [as Lecanora tartarea]. image of caratGier & Kendrick (1972): Boone Co., also literature report. image of caratHoward (1970): Iron Co.; 2 map records SE Mo. image of caratPech (1866): Pike Co. [as Lecanora tartarea].

Ochrolechia verrucosa image of carat Ochrolechia africana

Ochrolechia yasudae Vain. image of caratBrodo (1991): Cited and mapped from Howell and Ste. Genevieve cos.

Omphalaria pulvinata image of carat Thyrea confusa

OPEGRAPHA Ach.

Opegrapha atra Pers. image of caratLadd et al. (1994): Crawford Co.

Opegrapha varia Pers. image of caratLadd (1996): Phelps Co. image of caratWetmore (1992a): Taney Co. image of caratWetmore (1992b): Newton Co.

Opegrapha viridis (Pers. ex Ach.) Behlen & Desberger image of caratFink (1935). Note that Fink cites this taxon from Florida, Illinois, Massachusetts, and Missouri, referring to the "northern specimens" as "doubtful"; one can only speculate whether Missouri fit his concept of northern. image of caratGier & Jones (1954): literature report. image of caratGier & Kendrick (1972): literature report mistakenly attributed to Nelson (1911). image of caratNearing (1962).

Opegrapha vulgata Ach. image of caratLadd (1996): Phelps Co. image of caratLadd et al. (1994): Franklin, Iron, Perry, and Phelps cos.