BRITISH PYRENOMYCETES. 
119 
Sub.-Gen. 10. Calospora, Sacc. Sporidia triseptate. 
V. stilbostoma, CooJce, Sacc. Syll. 2382 (= rhois, Cooke). 
On Rhus. Swanscombe. 
V. detrusa, Fr.,Sacc. Syll. 2401 ; Hdbk. 2507. 
On barberry. Wansford, Hants, 
y. crataegi, Curr., Sacc. Syll. 2405 ; HdhJc. 2497. 
On hawthorn. Shere, Kidbrooke, N. Wootton. 
y. platanoides, Pers., Sacc. Syll. 3695 ; Hdbk. 2508. 
On Acer pseudo-platanus. Kew Gardens and Shere. 
On holly. Terrington, Bath, 
y. Innesii, Curr., Sacc. Syll. 3696 ; Hdblc. 2513. 
On small branches of sycamore. East Bergholt. Wey- 
bridge. 
y. aglaeostroma, B. § Br., Sacc. Syll. 3357 ; Hdblc. 2512. 
On elm twigs. Leicestershire. 
Gen. 2. MEL ANCONIS, Tul. Stroma valsaeform, blackish or 
yellowish. Perithecia circinate. Sporidia uniseptate, hyaline or 
brownish . (Conidia -=Melanconium.) 
a. Eu-Melanconis. Sporidia not appendiculate, hyaline. 
M. stilbostoma, Fr., Sacc. Syll. 2343 ; Hdbk. 2454. 
On birch. Blackheath, Weybridge, Hampstead, King’s 
Lynn, Bristol, Lucknam, Wilts. 
M. modonia, Fr., Sacc. Syll. 2344. 
On Castanea vulgaris. Darenth, Weybridge, North 
Wootton. 
b. Melanconidium. Sporidia appendiculate, hyaline. 
M. alni, Tul., Sacc. Syll . 2349 ; Hdbk. 2455. 
On alder. Southgate, Shere, Hinmore, Irstead, N, 
Wootton. 
M. thelebola, Fr., Sacc. Syll. 2350; Hdbk. 2503. 
On alder. Chiselhurst, Shere, Lewes, Irstead. 
c. Melanconiella. Sporidia brown or brownish. 
M. spodiaei, Tul., Sacc. Syll. 2805. 
On hornbeam. Highgate. 
M. chrysostroma, Fr., Sacc. Syll. 2806 ; Hdbk. 2456. 
On branches. King’s Cliffe, Jedburgh, Highgate. 
d. Hercospora, Fr. Similar, but with the pycnidia == Raben- 
horstia. 
M. tiliae, Fr., Sacc. Syll. 2352 ; Hdbk. 2496. 
On lime. Shere, Hampstead, Blackheath, Jedburgh. 
Gen. 3, PSEUD© VAX.SA, Not. Stroma valsasform, innate. 
Sporidia usually septate, brown. 
* yALSARiA. Sporidia uniseptate. 
P. parmularia, Berk., Sacc. Syll. 2816 ; Hdbk. 2506. 
On oak. King’s Cliffe. 
