TULASNE, SELECTA FTJNaOEITM CAEPOLOOIA. 369 



" Carex ligerica Gay, and it usually dries up entirely before the 

 " flowers are fully developed. This whole mass of Carex is so entirely 

 *' occupied by the propagula, or rather the mycelium of the stranger, 

 " that it is difficult, to find even a single cuhn withia the limits above 

 " defined which is free from the parasite. It follows that it would 

 " remain barren unless propagated by rhizomata, and I can easily 

 " imagine that the whole mass has originated from a single Carex 

 " which in the first instance admitted the fungus, and then in suc- 

 " ceeding years crept far and wide in every direction. For Carex 

 " arenaria L. abounds everywhere in the country about Bourdeaux, 

 *' but bears the Peziza only at " Fargse," in the particular spot above 

 "mentioned. You should know also that a single Sclerotiiun, or 

 " more rarely two or three are produced in each cidm above the base, 

 " and that the culms are at the same time almost invariably marked 

 *' above the middle by from ten to fifteen punctate distinct rings, 

 *' placed almost at equal distances and formed by the very minute 

 " Epidochium ambiens Desm. May we not conclude that some rela- 

 *' tion exists between this phoma-like pyrenomycete and the co-existent 

 " Sclerotium of the Peziza ?" Upon this latter suggestion of M. Du- 

 rieu de Maisonneuve, the authors remark that they have found Epido- 

 cJiium affine Desm. (a plant hardly difiering from Epidoclimm am- 

 biens) in Schoenus nigricans L., and in some Carices, and they con- 

 sider it possible that the Epidochium and the Peziza are different 

 forms of fruit of the same fungus, although the question as to their 

 production by the very same mycelium is not yet settled. The point 

 is very interesting, and one which may be recommended for the con- 

 sideration of those botanists who have the opportunity of watching 

 Carex arenaria. 



The authors did not succeed in their attempts to produce the 

 perfect fruit of Sclerotium varium. They sowed it in the summer 

 of 1860, and in the February following, numerous smooth delicate 

 " cauliculi" were produced, which afterwards assumed the form of very 

 acute funnels, but they all died long before arriving at perfection. 

 Mons. Muenter of Greifswald, who has lately given an account of his 

 experiments in the Xlth Vol. of the second series of the Eeports of 

 the Belgian Academy,* was more successful. He sowed some speci- 

 mens of Sclerotium varium in the month of December, 1857, and 

 after the lapse of a year and a half, viz. in July, 1859, the Sclero- 

 tium produced a Peziza, apparently a Ibed to, but distinct from, P. 

 tuberosa Bulliard. M. Muenter has given figures of his Peziza in 

 the volume above referred to. Sclerotium sulcatum Desm. and the 

 Sclerotium of Typhula have also been observed to lie dormant for 

 more than a year, as is men\.ioned at p. 106, (note 2) and p. 110, 

 (note 1) of the MM. Tulasne's work. 



We have not space to notice the interesting remarks upon Ehizo- 

 morpha and other forms of mycelium, which the reader will find dis- 



* Bull, de I'Acad. Royale dcs Sciences, &c. de Bruxelles, Vol. xi. p. 215. 



