1906] FULTON—CHEMOTROPISM OF FUNGI 107 
are not necessarily the same as the reactions, under similar conditions, 
of sporangiophores, gametophores, and other specialized parts. 
The writer wishes to acknowledge his indebtedness to Dr. B. M. 
Duccar for his very helpful suggestion and cirticism, and to Dr. 
Witt1am TRELEASE for the opportunity to consult the library of 
the Missouri Botanical Gardens. 
BoranicaL LABORATORY, 
University of Missouri. 
LITERATURE CITED. 
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Buscen, M., Ueber einige Eigenschaften der Keimlinge parasitischer Pilze. 
Bot. Zeit. 58: 59. 1893. 
CrarK, J. F., On the toxic effect of deleterious agents on the germination 
and developmen of certain filamentous fungi. Bot. GazETTE 28: 293. 
Now 
" 
, On the toxic properties of some copper compounds with special 
reference to Bordeaux mixture. Bor. GAZETTE 33:45. 1902. 
De Bary, A., Beitr. zur Morph. u. Phys. d. Pilze. 4:85. 1881. 
, Comp. Morph. and Biol. of Fungi, etc., Engl. Ed. 1887. 366. 1884. 
Dietz, S., Beitrige zur Kenntniss der Substratrichtung der Pflanzen. 
eee 
Unters. Bot. Inst. Tiib. 2:4 88. 
Duccar, B. M., Geceeipcieg a spores. Bor. GAZETTE 31:44. 1901. 
, The culiivaition of mushrooms. U. S. Dept. Agric., Farm. Bull. 
no. ee I 
10. Errera, L., Die grosse ee ee bei den Fruchttragern von 
Piscine Bot. Zeit. 42 
, On the cause of kee action at a distance. Ann. of Bot. 
6: cas ; 
12. Fatcx, R., Die Bedingungen und die Bedeutung ics a bei 
Sporodinia grandis. Cohn’s Beit. Biol. Pflan. 8:213. 190 
13. FERGuson, Marcaret C., A preliminary study of ‘he BEST i of the 
spores of Agaricus campestris and other basidiomycetous fungi. Bur. Pl. 
Indus. U. S. Dept. of Agric. Bull. 16:26. 1902. 
14. HormelsTer, Die Pflanzenzelle 286. 1867. 
15. Jonsson, B., Der richtende Einfluss ge ene auf wachsende 
Pflanzen und Pflanzetheile. Ber. Deutsch. Gesells. 1:512. 1883. 
16. Kratmann, O., Zur gency Sones — A ae Acta Soc. 
Sc. Fennicae 13:12. 
17. Kress, G., Zur Pipidoge der Fortpflanzung einiger Pilze. I. Sporodinia 
grandis. Falah. Wiss. Bot. 32:55. 1898. 
