ZOOLOGY AND BOTANY, MICROSCOPY, ETC. <"»61 



Two Brown Flagellatae.* — A. Pescher describes two new brown 

 species of Flagellatae, the first of which, Gryptochrysis commutata, some- 

 what resembles Gryptomonas erosa, and was found in backwaters of the 

 Olsch in southern Bohemia. The second is Protochrysis phseophycearum 

 from stagnant ponds near Franzensbad. Both are typical Cryptomonads. 

 Stein's Nephrosrlmis seems to represent a later development of Proto- 

 chrysis-hke monads. 



Cryptomonadeae.t — A. Pascher publishes a preliminary note of the 

 relationship of the Cryptomonaderc to the Algae. He finds that the 

 existing views on the subject are not wholly accurate, and he points 

 out where they should be amended. First he defines the limits of the 

 Cryptomonadese, a point on which authors are not in agreement ; and 

 then he declares his view that the group is a relatively far advanced 

 developmental series of the Chrysomonads, which either spring from the 

 Ochronionadeae or with them have been developed from a common root. 

 The Cryptomonadeaa are therefore not the ancestors of the many groups 

 which have been by authors derived from them, but form merely a side- 

 branch from the Chrysomonadege. From the Cryptoinonadeaj spring 

 only the Phaaocapsaceas, Phreophyceae, and Dinoflagellataa. The various 

 lines of descent are indicated in a table. 



Cyathomonas. J — V. Ulehla discusses the systematic position of the 

 genus Cyathomonas among the Flagellatas. the only species, G. trun- 

 cate, was placed by Biitschli in the Cryptomonadeae, but has later been 

 shifted to the Amphimonadace*. The author of the present paper finds 

 Biitschli correct. He makes a detailed comparison of the various points 

 common to Cyathomonas and the other genera of Cryptomonadese. He 

 considers the genus as a welcome completion of a natural developmental 

 series of the Cryptomonadeic, but standing aside on a line of its own and 

 not forming the final outcome of the series. 



Chrysomonadeae from the Hirschberger Grossteich.§— A. Pascher 

 publishes the first part of the investigations on the flora of the Hirsch- 

 berger Grossteich, in which he deals with the Chrysomonadeae. He gives 

 a systematic synopsis of the group. I. Chromulinales (terminal cilia). 

 1. Chrysapsidaceae ; 2. Euchromulinacere ; 8. Mallomonadaceaa ; 4. 

 Pedinellaceae. II. Isochrysidales (two equally long terminal cilia). 

 1. Isochrysidaceae ; 2. Euhymenomonadacea3. III. Ochromonadales 

 (two terminal, unequally long cilia). 1. Euochromonadacete. IV. 

 Phsochrysidales (two laterally~inserted cilia). New genera and species 

 are described. Fuller details of this paper may be found in Hedwigia. 



Chrysomonads. ||— 0. Reinisch describes and figures a new species of 

 Phseococcus, which was found in a salt-water tank at the Physiological 

 Institute at Prague. She describes the various stages of the life-history 



* Ber. Deutsch. Bot. Gesell., xxix. (1911) pp. 190-2 (figs.). 



f Ber. Deutsch. Bot. Gesell., xxix. (1911) pp. 193-203. 



j Ber. Deutsch. Bot. Gesell... xxix. (1911) pp. 281-92. 



§ Monogr. u. Ahhandl. Internat. Rev. Hydrobiol. u. Hydrograph, i. (Leipzig, 

 1910) 66 pp. (3 pis.). See also Hedwigia, li. (1911) Beibl. pp. (10), (11). 



|| Ber. Deutsch. Bot. Gesell., xxix. (1911) pp. 77-83 (1 pi). ; xxix. (1911) pp. 

 112-25 (1 pi.). 



