— 50 — 



194- Oct. 1914) the succession of vegetation begins with a bare rock surface, 

 and, on an exposed trap rock for instance, the pioneers are Buellia petraea and 

 Lecanora cinerea and, immediately following, Physcia trihacea. These lichens 

 are followed by other species, the crustose lichens being succeeded by a group of 

 foliose and fruticose species and eventually such mosses as Grimmia Olneyi and 

 Hedwigia ciliata. 



In crevices of the trap rocks the pioneers are fruticose lichens and mosses 

 and these are soon succeeded by other plants of various kinds. Eventually 

 the trap ridge becomes covered with an oak-hickory foiest which may persist 

 for a long time, but may finally be succeeded by the climax forest in which the 

 most prominent tree is the chestnut. 



Nichols takes up other plant successions in the same manner, tracing the 

 development and analyzing the composition of the vegetation, and to readers of 

 The Bryologist it is distinctly a pleasure to note the frequent mention and 

 prominent place given the bryophytes and lichens. 



O. E. J. 



The Mosses of Madagascar, Cardot and Renauld, now being Published. 

 — Under date of March 9, 19 16, Dr. Holzinger writes: "A letter just from Paris, 

 by M. Jules Cardot, is like a voice from the dead. He had to leave behind nearly 

 all of his botanical equipment — herbarium, books, pamphlets, manuscripts — 

 when the French military authorities ordered the entire population of the Meuse 

 valley to leave their homes, on ten hours' notice, and flee to the southwest of 

 France. He worked for awhile after the beginning of hostilities at Dinard in the 

 hospital service. At present his work is more congenial: he is connected with a 

 museum in Paris (Address: No. 164 rue Jeanne d' Arc prolongee). He is at work 

 on the Rosaceae of Asia. The point of great bryological interest, however, is 

 the announcement that he did save a valuable "manuscript, on which he had been 

 at work for years, jointly with his beloved friend, Capt. Renauld, now deceased, 

 viz., The Mosses of Madagascar, a magnificent volume of 560 pages, illustrated 

 by 187 plates, figuring 360 of the 550 species described. This the author reports 

 is now being published." 



CORRECTIONS 



In order to make her key to the mosses more complete Mrs. Dunham would 

 ask that the following insertions be made in the article "How to Know the Moss- 

 es without the Aid of a Lens," Bryologist, March, 1916: 



Page 22, line 16, add Polytrichum. 



Page 23, line 3, add or closely pinnate. 



