ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
77 
spores bear tlie promyceles characteristic of teleutospores, we must con- 
clude tliat, if the obtuse spores are teleutospores, the fusiform spores are 
also teleutospores. The only ground for supposing that the latter are 
uredospores is the statement of Kienitz-Gerloff that they do not produce 
promyceles, but rather the tubes found in ur^dosporic germination. 
G. clav arise for me is the only species in which two forms of teleutospores 
are known. The mode of germination of the teleutospores of Gymno- 
spcrangia is subject to a good many modifications, depending, in part 
at least, on the variations in the amount of moisture to which they are 
subjected. 
.iEcidium of Melampsora Euphorbise.* * * § — Herr P. Dietel finds the 
hitherto unknown eecidio-form of this Uredine on the same host as 
the uredo- and teleutospore-forms, viz. Eufliorhia dulcis ; this form 
making its appearance in the spring, and the other two generations in 
the autumn, on the same individual. 
New Poisonous and Luminous Fungus. t — Under the name Agaricus 
{Pleurotus) noctilucens, Dr. Y. Inoko describes a fungus parasitic on 
the Japanese beech, Fagiis SieboklL A strong white luminosity is ex- 
hibited by the gills ; this is less intense on the surface of the pileus, and 
altogether absent from the stipe. It is evidently the result of a process 
of rapid oxidation. The alcoholic extract was poisonous to dogs, 
rabbits, mice, and frogs. 
Development of the Hymenogastrese.J — Dr. E. Hesse describes a 
new species of Leucogaster under the name L. floccosus, difteriug from 
L. liosporus in the very thin and flocculent peridium, which is destitute 
of pores, in the very irregular form of the spores, and in its onion-like 
odour. Connected with the failure of all attempts hitherto made to 
germinate artificially the spores of the Hymenogastreae, Tuberacem, and 
Elaphomycetes, he states his belief that in the first of these families, as 
in the two latter ones,§ the phenomenon, hitherto described as the decay 
or dissolution of the fructification, has a totally different significance, 
and must be regarded as the commencement of the period of re^Dro- 
duction ; the structures, hitherto believed to be bacteria, which appear 
in great abundance during this process, playing an important part in 
this reproduction. 
Spore-formation in Phlyctospora.|l — The mode of formation of the 
spores in this rare underground genus of Fungi has not hitherto been 
observed. It was placed by its discoverer Corda among the Scleroder- 
maceje, by Kabenhorst among the Trichogastreae. Dr. G. Beck has now 
determined that the spores are borne on swollen club-shaped basids, 
each basid producing from two to five spores on very short sterigmas. 
The basids present the peculiarity of producing a large number of 
filamentous outgrowths, which envelope the ripe spores in a weft. 
Fhlyctospora must be placed in the Hymenogastrem among the 
Melanogastreae. 
* Oesterr. Bot. Zeitschr., xxxix. (1889) pp. 256-9. Cf. this Journal, 1889, 
p. 266. t jMitteil. Med. Facult. K. Japan. Univ., i. (1889) pp. 277-306 (1 pi.). 
I Bot. Centralbl., xl. (1889) pp. 1-4, 33 -6 (2 pis.). 
§ Cf. this Journal, 1889, p. 679. 
II Ber. Deutsch. Bot. Geselh, vii. (1889) pp. 212-6 (5 figs.). 
