LECIDEA. 



243 



Several species of this section were classed by Pries and 

 others in a separate genus, Biatora (ffiarop, a small jug or 

 bowl), distinguished by the apothecium being variously co- 

 loured, instead of black. 



ft Apothecia red. 



9. Lecidea pineti {pinetum, a wood of pine-trees). 

 Thallus greyish-green, leprose; apothecia minute, sessile, 

 flesh-red, flat or concave, becoming urceolate from the falling 

 out of the thalamium ; margin prominent, thin. 



An elegant species, common on the fir, and sometimes 

 beech, in lowland and subalpine woods. Its spores resemble 

 those of the following species, but are much smaller. 



10. Lecidea aeruginosa (arugo, verdigris). Thallus 

 whitish, leprose, covered with seruginose granules ; apothecia 

 rose or flesh-coloured, appressed, sessile or very slightly pe- 

 dicellate, flat, marginate, somewhat crowned by thallus, at 

 length tumid and immarginate. (E. B. 372.) 



A common species on heaths in lowland and alpine dis- 

 tricts, growing on moist peaty soil, and about gravel-pits. 

 Its apothecia are among the largest met with in the genus 

 Lecidea ; they are frequently irregular in shape, and crowded 

 or aggregate. The plant is more familiar under its old name, 

 Lichen ericetorum or Lecidea icmadophila. Its thecse are 



