and the peridioles of a Nidularia. The genus was overlooked by both 

 Berkeley and Peck, who had previously worked with it. Tulasne 

 never saw a specimen in his life. 12 The genus Nidula seems to be of a 

 northern range. It reaches me abundantly from one correspondent 

 (Albert J. Hill) Xew Westminister, Canada, and from Northwestern 

 United States. I have it scantily from Japan and Australia, and Berke- 

 ley had an ample collection from the Himalayas, India. It does not 

 seem to occur in warm countries, or over the greater portion of the 

 United States or Europe. 13 



XIDULA CANDIDA (Plate 103). Peridium cup-shaped, with a 

 spreading mouth, i to i l / 2 cm. high. Outer surface shaggy-tomentose, 

 the tomentum tufted. Peridioles i l / 2 -2 mm., broad, light brown, 

 smooth (not wrinkled), with a thin tunica. Spores 4-6 x 8-10, ellip- 

 tical, smooth, with granular contents. 



This plant reaches me only from Albert J. Hill, New Westminster, 

 B. C.. Canada. It grows in damp places in the woods, usually on 

 rotten sticks, twigs. 



SPECIMENS IN OUR COLLECTION. 

 Canada. A. J. Hill (3 collections). 



NIDULA MICROCARPA (Plate 103). Peridium cup-shaped, 

 with a straight or slightly spreading mouth. About l / 2 cm. high. 

 Outer surface appressed-tomentose. Peridioles y 2 -i mm. broad, red- 

 dish brown, rugulose when dry. Spores 5-6 x 7-8, elliptical, smooth. 



This plant is very close to the preceding and grows in similar local- 

 ities. I was at first disposed to think it was only a variety. The peridia 

 are smaller and smoother, peridioles smaller and darker color, and the 

 spores are relatively broader. The cups of young specimens have 

 a general resemblance to those of Crucibulum vulgare, but the plants 

 can be easily distinguished as this has brown peridioles, and Cruci- 

 bulum white peridioles. 



SPECIMENS IN OUR COLLECTION. 



Canada, Albert J. Hill (2 collections) ; Washington, T. C. Frye, C. V. 

 Piper (2 collections). 



A FORM FROM AUSTRALIA. I have received from F. M. Reader, 

 collected in the County of Follett, a rather scanty collection, which for (he 

 present I refer to Nidula microcarpa. It has the same cups, but the peridioles 

 are smaller (about l / 2 mm.), and the spores are slightly longer, 5-6x8-10. It is 

 the only collection of the genus Nidula known from Australia. We have also 

 a single cup of a Nidula from Japan, but the material is so scanty we would 

 not wish to say anything, other than to record the genus in Japan. 



12 It might appear that the section Scutula " Peridium regulariter apicc dehiscens " of Ttrlasne's 

 genus Xidularia is the same as Nidula. The only specimen of this section Tulasne saw wra Nidula- 

 ria australis, which is a true Nidularia as to its cup, and has no epiphragm. 



13 I have never seen a specimen from Europe, but I am satisfied the old figure of Ho'raskjold 

 (Beata Rur. T. 4, f. 2 represents this genus. 



