THAXTER. — 



MOXOORAIMI OF TIIK I, A HOU LMKN I AC K.K. 



221 



that the "foot" is merely a means of attachment, and that the appendages are the true absorbing 

 organs; nn opinion to which reference will be made below. 



1'. Speiser, in connection with his studies of the Nycteribidie, publishes in the Berichte d.d. Botan. 

 Gesell., Vol. XVIII, p. 408, 1 ( J0(), ii note on the geographical distribution of Helminthophana [Arthro- 

 rhyrwkws), enumerating the species on which these fungi have been observed, and recognizing but 

 one species in the genus. Further notes concerning this paper may be found under Arlhrorhynelm.s. 



C. Spegazzini in the Annates del Museo Nacional de Buenos Aires, Tomo VIII, p. 79, 1902, gives 

 a description of a species of LabnulbeniM which he calls L. Argentinehsis, occurring on "Brachiivus" 

 furl her reference to which will be found under Laboulbenia decipiens below. 



The writer has published a note in Science, N. S. XVII, p. 463, 1903, which is a summary of a 

 brief paper on the genus Herpomyces read at the meeting of the American Association for the Ad- 

 vancement of Science of the preceding year. 



P. Baccarini, in Appendici al Nuovo Giornale Botanico Italiano, Vol. XI, p. 225, 1904, describes 

 and figures two new forms on Gamas'uhe, one, " Rkarkomyees" Berlesiana, closely related to Riclcia 

 and Disiichomyces, and possibly belonging to one of these genera; the other, Laboulbenia Napoleonic. 

 The generic characters of these forms are not exactly determinable from the figures and descriptions 

 given. 



L. Errera in the Recueil de l'lnstitut botanique, Bruxelles, Tome I, p. 344, 1905, reports the presence 

 of glycogen in the cells of Stigmatomyccs Muscat. 



J. H. Faull in Science, N. S. XXIII, pp. 134 and 152, 1906, publishes a preliminary note on the 

 Ascus and Spore-formation in Laboulbeniacea?, in which he states that these processes agree in all 

 essentials with those which occur in other typical Ascomycetes. 



Lastly six preliminary descriptive papers have been published by the writer in the Proceedings 

 of this Academy and were issued in December 1889, April 1900, March and June 1901, June 1902, 

 and July 1905 respectively. Other contributions, if such exist, have not been brought to my attention. 



It is needless to remark that so large an addition to the Laboulbeniales as is herewith presented 

 has thrown new light on various points relating to their general morphology and development, and 

 necessitates some modification, for example, in the conceptions of generic types, the absolute distinc- 

 tions between series, etc. It has not, however, proved necessary to modify essentially the general 

 account previously given, and in the following pages no attempt will be made to review these matters 

 comprehensively, except in so far as they have been modified or elucidated by the additional data 

 now available. It has been found convenient in this review, to adopt the same sequence of topics 

 formerly employed, beginning with the 



<Sporc Characters. Amorphomyccs still remains the only genus in which a simple spore replaces 

 the hyalodidymous form characteristic of all the other genera, and the reference of A. Floridanus to 

 its proper place under the new genus Dioicomyccs, shows that this simple character in the spore is 

 correlated with an absence of any appendage, or sterile cell, connected with the primary receptacle; 

 a condition found in no other instance. The only spore modification of interest that has been observed 

 among the hyalodidymous forms, is found in the last mentioned genus; the spore-septum of which 

 is more or less conspicuously oblique (Plate XLII, figs. 17 and 29) and this genus also, as may be 

 seen by reference to the figures cited, illustrates in a striking fashion, the differentiation which may 



