Buellia multispora
Buellia multispora is a species of crustose lichen in the family Caliciaceae. Described as a new species in 1979, it is found in Hawaii.
Taxonomy
It was formally described as a new species in 1979 by the lichenologists Klaus Kalb and Antonín Vězda. The type specimen was collected from Keawaula Valley, on the shore of Oahu, Hawaii, on March 16, 1977. The species is similar in appearance to Buellia polyspora var. diminuta, but differs in having smaller spores and a higher number of spores per ascus. Bernhard Marbach proposed to transfer the taxon to the genus Amandinea in 2000.Description
The thallus of B. multispora is, thin, measuring 0.5–1 cm wide, with a finely cracked-areolate texture and grayish-white coloration. It lacks a distinct boundary and does not show color reactions with common lichen chemical spot tests.The apothecia are relatively numerous, circular, attached to the substrate, black, and lack . They measure 0.3–0.5 mm wide and 0.1–0.15 mm high. Initially, they have a thin margin and flat, but eventually develop a convex disk with the margin disappearing.
Microscopically, the is thin, pale brown on the inside and blackish-brown on the outside, with no reaction to K. The is pale brown and shows no reaction to K. The hymenium is 50–60 μm tall, colorless, and turns blue with iodine.
The paraphyses are simple or forked, 1.5 μm thick, with tips measuring 4–4.5 μm across, and blackish-brown in color. The asci are cylindrical-clavate and polysporous, containing 50–60 spores each. The spores are ellipsoidal, straight, blackish-brown, single-septate, with relatively thin walls, measuring 8–10 μm long and 3–3.5 μm thick.
Lichenodiplis fallaciosa is a lichenicolous fungus that has been recorded parasitizing Buellia multispora.