I 



ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 599 



Bryophytes of Piedmont.* — L. Yaccuri, in his account of the 

 bryology of the \'alle di Aosta in the north of Italy, a district extend- 

 ing from the Graian Alps to the Great St. Bernard, Mont Blanc, and 

 Little St. Bernard, records 207 mosses and 48 hepatics. Among them 

 is a Rocky Mountain species, detected for the first time in Europe ; 

 7 species or varieties are new to southern Europe ; and 22 new to Italy. 

 Also 7 varieties or forms new to science are defined for the first time. 

 The distribution of the species is worked out very instructively as to 

 geography, altitude, and geological formation. 



North American Mosses.j — R. S. Williams gives an account of the 

 Dicranacese and Leucobryaceas in the Flora now in course of publication 

 by the New York Botanical Garden. The family Dicranacese is divided 

 into three groups — Dicranellete (with 3 genera), Dicraneag (13), Rhab- 

 doweisie^ (3). Keys to the genera and species are provided. The 

 descriptions of structure are ample and detailed. The family Li-uco- 

 bryaceae contains three genera. 



North American Hepatics.J — A. AY. Evans, in publishing a fourth 

 chapier of notes on North American Hepaticse, describes in detail and 

 figures the structure of Gololejeunea setiloba, a new species collected in 

 Florida by S. Rapp. The most remarkable feature of the species is the 

 lobule of the leaves — a narrow basal fold surmounted by a single tooth 

 2-4 cells long. Of the other species discussed four belong to Le^jeunea, 

 two to Eiccia, and one each to Riccanlia, FruUania, Aiithoceros. 



Thallophyta. 



Algse. 



(By Mrs. E. S. Gepp.) 



New Method of Preparing Schizophyce®.§ — AY. Conrad describes 

 a new method of making good preparations of Schizophyce^. It is 

 best to tease out the material as much as possible in a watch-glass 

 containing a httle water, and then add 3-4 drops of a saturated solution 

 of quinone in alcohol at 90', freshly prepared. After several hours 

 coloration takes place, at least in certain species, while in 12 to 24 

 hours it is complete. Wash in alcohol at 30-40° till the yellow colour 

 disappears, then in water with lUO p.c. glycerin (containing a slight 

 addition of thymol or formol). Cover the watch-glass with a funnel of 

 filter-paper, and leave the glycerin to become concentrated by evapora- 

 tion of the water. Mountain glycerin jelly in the ordinary way. 



Action of Heat on a Mobile Alga |1 —P. Desroche has studied 

 the action of heat on the zoospores of GhJamydomonas. If a drop of 



* Nuov. Giorn. Bot. Ital., xx. (1913) pp. 417-96. 

 t North American Flora, xv. (1913) pp. 77-166. 

 X Bryologist, xvi. (1913) pp. 49-55 (figs.). 

 S Bull. Soc. Roy. Bot. Belg., xlix. (1912) pp. 205-8. 

 '\ C.R. Soc. Biol. Paris, Ixxii. (1912) p. 793. 



