lower down, shows the gleba divided by the same plates that are here 

 attached to the young stem. Our figure (c), which is the longitudinal 

 section of the young egg shows the position of the plant in the egg, 

 and is marked (d, e, f), where the corresponding cross-sections are 

 made. By examining these figures a good idea of the structure of 

 the young Lysurus borealis eggs can be obtained with the relative 

 position of the umbilical plates. 



I will add also that since the examination of this formalin mate- 

 rial, kindly sent by Mr. Ropes, I am quite convinced that the plant 

 Lysurus borealis is exactly the same as Lysurus Clarazianus, which 

 was well illustrated by Prof. Fischer. The structure of the arm is 

 exactly the same in both plants, to the last wrinkle, as shown in 

 Fischer's plate. I also suspect that it is the same plant as Lysurus 

 Australiensis, only known from unsatisfactory material at Kew. 



Notwithstanding that Lysurus borealis does not and never did 

 belong to the genus Anthurus, and that the mistake has been fully 

 explained in our Synopsis of the Phalloids, we still find it called 

 "Anthurus borealis" in "Mycologia" of the present year. 



LYSURUS BOREALIS AT CINCINNATI. 



Information has reached me that the mysterious Lysurus borealis has oc- 

 curred around Cincinnati. Mr. F. J. Lodder, who, by the way, a few years ago 

 made a national reputation by practically growing mushrooms on a large scale, 

 informed me of the presence last summer of a mysterious growth on his grounds, 

 which from his description I had no trouble in referring to Lysurus borealis. Mr. 

 Lodder readily recognized the photograph of the phalloid. 



The occurrence of Lysurus borealis in America presents one of the most curious 

 problems in connection with plant distribution. Many years ago it was first noticed 

 by Professor Burt at East Galway, N. Y. It has since been collected from a num- 

 ber of other localities, principally from the Eastern States. A list of the main 

 stations was published in Myc. Notes, pp. 183 and 219. Professor Beardslee recently- 

 told me that it occurs now around Cleveland in great quantities. It seems to occur 

 in fields where the sod has been turned and rotted. 



There are but three stations known for Lysurus borealis in Europe, all of 

 them discoveries of recent years (cfr., Syn. Phalloids, p. 40). We think Lysurus 

 Australiensis as named from Australia is the same plant, and we are quite sure 

 that Lysurus Clarazianus as illustrated from South America is exactly the same. 

 It is probably a South American plant that has just become established in our 

 section. 



AN ACRE OF LYSURUS. 



BY H. C. BEARDSLEE. 



The occurrence of Lysurus in Ohio has been noted several times, but one new 

 station in which it was detected in the fall of 1910 seems interesting enough to 

 deserve notice. About an acre of ground in Lake Co., Ohio, had been prepared 

 by turning under a heavy sod and been planted to onions. During August and 

 September a fungus appeared here in profusion which no one had ever observed 

 in that locality before. Upon visiting the field I was much surprised to find the 

 strange plant to be Lysurus borealis. 



Its occurrence in Northern Ohio has been noticed before, but the profusion 

 in which it was growing was somewhat disconcerting. The entire field was cov- 

 ered with plants in every stage of development, and the ground was so filled with 

 eggs that it could scarcely be stirred without uncovering great masses of them. 

 It was literally an acre of Lysurus. 



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