Durand : Classification of the Fleshy Pezizineae 485 



under Belonidium on account of the form of the spores. Rehm * 

 and Schroter f included the genus in the Helotiaceae, making it 

 comprehend those species which, on account of their prosenchyma- 

 tons excipulum, are separated from the Mollisiaceous genus Tricho- 



be Ionium. 



My sections made from Ellis and Everhart's N. A. F. no. 59, 

 show the following structure : The excipulum consists of two layers. 

 The inner one made up of slender hyaline hyphae grades off into 

 the thin hypothecium above. At the sides of the cup the threads 

 are looser, and many of them project from the sides and margin 

 as golden -brown pili. The ectal excipular layer is present only at 

 the base of the cup, being lost as the sides begin to be elevated. 

 It is pseudo-parenchymatous, the cells being thin-walled and hya- 

 line. They are somewhat elongated and measure 1 5 x 5 t 1 - 



Ombrophila 



The plants of this genus are small with a gelatinous consistency. 

 They usually have a short stem and grow on decaying vegetable 

 matter in damp places. Most authors have included this genus 

 with the next under the Bulgariaceae. Rehm % followed the usual 

 disposition but observed that in their structural characters these 

 plants approach the Helotiaceous division of the Pezizineae. 

 Schroter § went a step further and united the most of Rehm's Bul- 

 garieae to the family Helotiaceae under a gelatinous division. 



0. aurea, O. purpurascens, and O. violacea have been examined, 

 and in all the whole sterile tissues are composed of very slender, 

 hyaline hyphae closely interwoven. 



Coryne urnalis (Nyl.) Sacc. 



This is a reddish-purple, gelatinous plant growing on rotten 

 wood. It differs from the preceding genus in being larger, and in 

 having septate spores. 



The hypothecium and medullary portion are composed of very 

 slender hyaline hyphae like those in Ombrophila. The ectal layer 



* Rehm, p. 698. 



f Schroter (I), p. 68, (2), p. 200. 



% Rehm, p. 467. 



\ Schroter (1), p. 98 ; (2), p. 208 et seq. 



