68 
BRITISH PYRENOMYCETES. 
A preliminary list of known species. 
By G. Massee. 
( Continued from p. 39.) 
Fam. 5. DIATRYPEiE. Composite. Perithecia immersed in 
a heterogenous stroma. 
Gen. 1. DIATRYPE, Fries . Stroma erumpent or superficial, 
effused, discoid or somewhat verruciform. 
* Diatrypella, Not. Asci polysporous, sporidia allantoid , hyaline. 
1. D. verruciformis, Ehr ., Sacc. Syll. 743; Hdbk. 2432. 
On branches. Common, 
var. affinis, Cke. 
On elder. Whitehall. On alder. Shere. 
2. D. favacea, Fr., Sacc. Syll. 744; Hdbk. 2431. 
On Betula alba. Chislehurst, Lynn. 
3. D. nigro-annulata, Grev ., Sacc. Syll. 745 ; Hdbk. 2433 
(= angulata, Fr.). 
On lime and beech. Scotland. 
On oak and holly. Chislehurst, Weybridge, Eltliam, and 
Pentrich. 
4. D. Toccieeana, Not., Sacc. Syll. 747. 
On alder. Dinmore, Irstead, Lyme Regis. 
5. D. aspera, Fr., Sacc. Syll. 753 ; Hdbk. 2430. 
On elm, beech, &c. Weybridge, Eltham, Burnt Ash 
Lane, Bishop’s Wood, Lynn. 
6. D. quercina, P., Sacc. Syll. 759 ; Hdbk. 2429. 
On oak. Common. 
** Diatrype, Fries. Asci octosporous, sporidia sausage- shaped, 
hyaline. 
a. Stictosph^ria. Stroma effused. 
7. D. stigma, Hoffm ., Sacc. Syll. 705; Hdbk. 2434. 
On bark and wood. Paul’s Cray Common, Blackheath, 
Weybridge, Forden, etc. 
b. Discosph^ria. Stroma discoid or verruciform. 
8. D. bullata, Hoffm., Sacc. Syll. 704; Hdbk. 2436. 
On willow. Norths, Forden, Hereford, Brighton. 
9. D. disciformis, Hoffm., Sacc. Syll. 703 ; Hdbk. 2435. 
On alder. Mark Ash, Hants. 
On beech. Forden, Shere, Edinboro’, etc. 
