Some Tomato Diseases. F. T. Brooks and G. O. Searle. 189 
Herbarium Specimen 6. MYCOSPHAERELLA CITRULLINA (reputed), 
on tomato stem, England; in the Kew Herbarium (pyc- 
nidial stage only). 
PycnosporeEs. Ejected in coils through the ostiolum, hyaline. 
SHAPE. Mainly cylindrical with rounded ends, but irregularly shaped 
and curved, spores numerous. 
SEPTATION. About 60 % 1I-septate, sometimes slightly constricted at the 
septum. 
GUTTULATION. Few spores bi-guttulate, a few one-guttulate. 
SIZE. 6 u-10 uw X2°5 w-4 m non-septate. 7-5 u-II ux 34-4 I-sep- 
tate. 
Herbarium Specimen 7. MYCOSPHAERELLA CITRULLINA (reputed), 
on lower part of melon stem, England, in the Kew Her- 
barium (pycnidial stage only). 
PYCNOSPORES. Very few spores were obtained from this specimen and the mode 
of ejection from the pycnidium could not be determined. 
SHAPE. Cylindrical with rounded ends. 
SEPTATION. All except 3 spores (15 was total number seen) were very 
faintly 1-septate, no constriction at septum. 
GUTTULATION. No guttules. 
SIZE. 8 u-I0 & Xx 2°5 u-3°5 mw I-septate. 7 u-9 u x 3m non-septate. 
Herbarium Specimen 8. PHoMA Lycopersici Cke., on tomato 
stem, England. This was Cooke’s type specimen in the 
Kew Herbarium. 
PYCNIDIA. Pycnidia brown, roughly spherical to triangular, average dia- 
meter 170u. Ostioles usually 1, sometimes more. A few 
compound pycnidia seen. Only a few spores were obtained. 
PYCNOSPORES. Hyaline, but the mode of ejection from the pycnidium could 
not be determined. 
SHAPE. Cylindrical with rounded ends, very regular. 
SEPTATION. go % I-septate. 
GuTTULATION. No guttules. 
SIZE. 8u-I2ux2-5u-4m I-septate. 7 u-II uX2°5 u-3°5m NoOn- 
‘septate (20 measurements). 
Herbarium Specimen 9. DIPLODINA CITRULLINA (reputed), on 
dried stems of cucumber, from Germany, 1908; in the 
Herbarium of the British Museum. 
PYCNIDIA. Pycnidia light brown with a darker band surrounding the 
lighter-coloured ostiole. 
Pycnospores. Hyaline, but the mode of ejection from the pycnidium could 
not be determined. 
SHAPE. Not cylindrical. 
SEPTATION. About 40 % 1t-septate. 
GUTTULATION. No guttules. 
SIZE. 5-9 MX 275 M-3°5 MK. 
