shape and slight development of the sterile base, called Lycoperdon 

 cepaeforme. " Four of them are the black form (Lycoperdon nigrum), 

 a form that seems to be endemic. 



The specimens of Lycoperdon pratense re- 

 ceived from Prof. McAlpine are so unusually 

 large and well-developed that we present a fig- 

 ure of them (Plate 71). We also give a figure 

 (Plate 71) of Lycoperdon cepaeforme, which 

 from the collections we have received, we judge 

 to be the most common species in Australia. 

 From Prof. McAlpine we have also received 

 typical specimens of Lycoperdon gemmatum 

 (Fig. 92), a species which at the time we wrote 

 our pamphlet we were not sure occurred typ- 

 ically in Australia. It is the common species of 

 most temperate parts of the world, but it seems 

 to be rare in Australia. 



LYCOPERDON TEPHRUM : I have been 

 led to doubt the determination of the specimens 

 called Lycoperdon tephrutn in the former pamphlet. They are im- 

 mature and should not have been determined. I withdraw what I 

 have said on this subject, awaiting further material. 



THE GENUS CALVATIA : The abundant and fine specimens 

 that we have received from Prof. McAlpine and Mr. Reader afford us 

 a much better idea of this genus in Australia than we had at the time 

 we wrote our pamphlet. Calvatia Candida proves to be the most fre- 

 quent species, which is strange, as it is a very rare plant in Europe 

 where I know of only two or three collections, and it is unknown 

 from the American continent. 



CALVATIA CANDIDA (Plate 72): Specimens that we now 

 have are larger with a more strongly developed base, and this plant 

 in Australia is not the little, globose plant such as is only known in 

 Europe. Peridium with a smooth cortex, very thin and brittle, white 

 when young, but becoming reddish-brown when ripe.f Sterile base 

 (when developed), compact, not cellular, similar to the gleba in ap- 

 pearance. Capillitium of slender, hollow, branched, septate threads, 

 about the diameter of the spores, colored when young, but becoming 

 almost hyaline (under the microscope) when fully ripe. Spores glo- 

 bose, 4-5 mic., minutely but distinctly asperate under a high power. 



SPECIMENS IN OUR COU,ECTION. 



Australia, Norwood, J. G. O. Tepper, Dimboola, D. McAlpine, (2 col- 

 lections). Warracknabeal, F. M. Reader, Borung, F. M. Reader, Adelaide, 

 Walter Gill. 



CALVATIA OLIVACEA (Plate 72): We have received two 

 collections. Heretofore the type specimen was all that was known. 

 It is the same as Calvatia Candida as to spores and capillitium, except- 

 ing that the latter is more strongly colored. In general habits, how- 



fHence the plant is really mis-named. 



249 



