150 Journal of the Mitchell Society [February 



finely tomentose with curled hairs. Hymenium smooth, pale straw 

 or Hght buff, lining the inside of the cup, the mouth of which is whitish 

 and contracted or, when wet and fully mature, open. 



Spores (of No. 4001, spore print) cylindric, curved, smooth, white, 

 2-3 X 7.5-lltx. Basidia 5-6.5[x thick, flat at end, with four very 

 small and short sterigmata. 



4001. On dead Alnus twigs, January 22, 1920. Not fascicled in this collection. 

 4017. On dead Alnus twigs, January 24, 1920. Many densely fascicled groups in 



this lot, also many single ones. 



Common on branches of alder (as C. fulva) . Curtis. 



3. Cyphella cupulaeformis Berk. & Rav. 



Plate 30 



Centrally attached by a very short stalk; plant up to 1.5 mm. 

 long by 2.5 mm. broad, cup-shaped or goblet-shaped, the outside 

 minutely scurfy and pale gray-brown, the hymenium inside the cup 

 smooth and about the color of the outside; the mouth open when 

 wet, collapsed and practically closed when dry. 



Spores white, very remarkable in being set with six or more spines 

 which are about 3.7[). long, body of spore 4.5-5.5 X 5.5-6[x. The 

 spines do not appear until the spores are nearly grown, the spores 

 up to that time being smooth and oval; as the spines begin to develop 

 the spores appear simply angular for a while. Basidia club-shaped, 

 8[x in diameter. 

 4019. On decaying cedar limb, January 24, 1920. 



4. Cyphella capula (Holmsk) Fr. 



We have not yet found this and adapt the following from Burt 

 (1. c, p. 366). 



Growing on dead stems of herbs and forming little whitish, pendu- 

 lous cups drawn out to a stalk, the entire plant about 1-3 mm. long 

 and 0.5-2 mm. broad; hymenium on the inside of the cup; outside 

 of the cup and stem glabrous; the cup margin irregular. 



Spores white, flat on one side, 3-3.5 X 4.5-6^. 

 Common on stems of herbs. Curtis. 



SOLENIA 



Fruit bodies in the form of small to very small cups or tubes 

 which are commonlj' so closely set as to appear almost as a continu- 

 ous stratum to the naked eye. The cups are somewhat contracted 



