CRATERWM 107 



Lister has put it in with C. leucocephalum, from which its more 

 delicate structure and elegant cylindrical shape certainly distinguish 

 it. The dehiscence is even more regular than in the preceding spe- 

 cies and approaches that of C. minutum Leers., with bleached forms 

 of which it must not be confused. N. A. F., 1400. 



C. minimum Berk. & C. has here priority. Massee regards this 

 name as indicating a distinct species. We have been unable to deter- 

 mine what the authors really had before them, and adopt accordingly 

 the first available combination. 



New England to Iowa and south ; reported also from the orient. 



5. Craterium concinnum Rex. 



1893. Craterium concinnum Rex, Proc. Phila. Acad., p. 370. 



Sporangia scattered, usually minute, broadly funnel-shaped, stipi- 

 tate. The peridium simple, variously colored by innate lime gran- 

 ules, opening by a regular cap or operculum, brownish w^hite, darkest 

 in the centre, always more or less convex; stipe equalling the cup in 

 height, dark brown, longitudinally ridged; the capillitium a close- 

 meshed network, with small rounded or slightly angular masses of 

 ochre-brown lime-granules, larger toward the centre; spores pale 

 brown, minutely warted, 9-10 ju,. 



This species differs from the following, to which it seems most 

 nearly allied, in form, color, as in the capillitium, and color of the 

 spores. In habitat, however, it seems no less distinct, being found 

 always (?) on the spines of decaying chestnut-burs lying on the 

 ground, and in company with that other peculiar species Lachno- 

 bolus globosus. 



The range is probably that of the chestnut, Castanea dentata Bork- 

 hausen, east of the Mississippi River. 



6. Craterium minutum (Leers) Fr. 



Plate XV., Fig. 5. 



1775. Peziza minuta Leers, Fl. Herborn, p. 277. 



1797. Craterium pedunculatum Trent., Roth., Catal. Bot., I., p. 224. 



1813. Craterium vulgare Ditmar, Sturm, Deutsch. Fl. Pilze, p. 17. 



1829. Craterium pedunculatum Trent., Fr., Syst. Myc, III., p. 150, 



1829. Craterium minutum Leers, Fr., Syst. Myc, IIL, p. 151. 



