PI cell. aph. 6. SARCOTHALAME^. 146. Exorm. 523 
7. Exormatostoma barb atum . Bearded exormatostome. 
Thecce nearly globular, brown, on leaves; mouths eight 
times as long as the thecse, bristlelike; tips bearded. 
Sphaeria barbala, Persoon Syn. 60. 
On the fallen leaves of oak-trees. 
8. Exormatost. suhcorticale. Underhark exormatostome. 
Thecce depressed, within the outer bark, piercing the 
epidermis, when dry collapsed at bottom. 
Sphaeria subcortiealis, Sowerby Fungi , 296. 
On the bark of plants and on rotten sticks. 
9. Exorm. subimmer sum. Half-sunk exormastotome. 
Thecce globular, black, pushing up the epidermis into a 
dark-grey hemisphere. 
Sphaeria subimraersa, Sowerby Fungi , 372, 8, 
On the bark of trees. 
10. Exormatostoma duplex. Double exormatostome. 
Thecce globular, within the outer bark, piercing the 
epidermis ; mouths globular, black. 
Sphaeria duplex, Sowerby Fungi, Sib, 4. 
On the stems of umbelliferous plants. 
XIII. 147. ASTOMA. Astome. 
Thallus 0; thecce naked, innate or free, placed on wood, 
mouthless. 
a. Growing upon wood. 
1. Astoma cylindricum. Cylindrical astome. 
Thecce extremely small, gregarious, cylindrical, black; 
tipped with a whitish globule. 
Sphaeria cylindrica, Persoon Syn. 93. 
On willow-wood. 
2. Astoma parabolicum. Parabolic astome. 
Thecce extremely small, gregarious, conical, cylindrical, 
smooth, black, with a livid globule at the tip. 
Sphaeria parabolica, Tode Meckl. 43. 
On rotten wood. 
3. Astoma subulatum. Awlshape astome. 
Thecce aggregate, awlshape, yellowish, larger at bottom, 
globule at the tip pale, deliquescent. 
Sphaeria subulata, Persoon Syn. 94. 
On rotten agaries. 
