1910] CURRENT LITERATURE 157 
confirmed by Donovan" by observations on the same speciés of Euphorbia in 
M AFONT’? now follows with a full account of the organism. 
parasite, which was originally discovered in the latex of Euphorbia pilulifera, 
occurs also in the two other species E. thymifolia and E. hypericifolia. searc 
of the latex of some 50 other species of plants from various families failed to 
reveal similar organisms. About one-third of the Euphorbia plants from different 
stations were found to be infected. The number of parasites in different plants 
varies greatly. The infected plants show the effects of malnutrition, and finally 
drop their leaves and die. The protozoans are elongated, flattened, and some- 
what undulate. They do not, however, possess the undulating membrane of 
trypanosomes, and are therefore placed in the genus Leptomonas, as L. Davidi. 
The apex is provided with one cilium, which originates in a blepharoplast. 
A large nucleus is situated near the center of the body. Division, which was 
observed in hanging drop cultures, takes place by longitudinal fission, preceded 
by a thickening of the body of the organism. Various forms, perhaps ene: 
different stages in the development of the organism, were observed. 
plest are spherical, nucleated masses of protoplasm, which soon form a ‘alien 
It is possible that two parasites exist here. Injection of the parasites into the 
blood of small animals produced no infection, although some of the animals 
died from unknown causes.—H. HAssELBRING. 
Diseases of celery.—KLEBAHN™ has added to his numerous excellent con- 
tributions of life histories of Fungi imperjecti an account of two diseases of celery 
occurring in the truck gardens on the lowlands surrounding Hamburg. The 
first is the leaf-spot disease caused by Septoria Apii (Briosi and Cav.) Rostr., 
also known as S. Petroselini Desm. var. Apii, and as Phlyclaena Magnusiana 
(Allechr.) Bres. The fungus attacks the leaves, stems, and fruits of the celery 
plants, and forms pycnidia on all of these organs. In following out the manner 
in which the fungus lives through the winter, the author encountered no other 
fruiting stages. The fungus is carried over from year to year by means of spores 
We persist both in the pycnidia on the plant remnants left in the fields, and 
€ pycnidia on the seeds. With spores from both sources the author was 
able to produce infections on young plants with eas 
The second disease is a scab of the roots, which, ica it has been reported 
from several places, has never been critically studied. The disease is shown to 
be due to a species of Phoma, for which the author here first uses the name Ph. 
apiicola, unfortunately without giving a technical description of the fungus. 
*t Donovan, C., Kala-azar in Madras, especially with regard to its connection 
with the dog and the bug (Conarrhinus). Lancet 17'7:1495-1496. 1909. 
“2 Laront, A., Sur le présence d’un Leptomonas, parasite de la classe des Flagellés 
dans le latex de trois Euphorbiacées. Ann. Inst. Pasteur 24:205-219. figs. 7. 1910. 
"3 KLeBamn, H., Die Krankheiten des Selleries. Zeitschr. Pflanzenkrank. 20: 
I-40. pls. 2. Pte 14. 1910." 
