484 Durand : Classification of the Fleshy Pezizineae 



Lachnella flammea (A. & S.) Fuckel 



The plants of this species are small, sessile, nearly globose, 

 and brick-red in color. The exterior is clothed with long, red- 

 brown hairs. 



The sterile layers of this plant are uniformly composed of 

 slender, hyaline hyphae. At the surface many of the threads are 

 produced into long, brown, septate pili. 



Lachnum virgineum (Batsch) Karst PI. 30, Fig. 10 



This is a very common Discomycete growing on rotton wood. 

 The whole plant is pure waxy white with a slender stem. The 



surface is clothed with white pili. 



The hypothecium and medullary tissue are composed of very 

 slender hyphae densely interwoven, thus conforming to the type 

 described for Cyathicnla. The ectal layer has the threads stouter 

 and less closely interlaced. Toward the surface the hyphae be- 

 come still looser and finally project as long slender hyaline pili, 

 which are very prominent at the sides and margin of the cup. 



Lachnum sulfureum (Pers.) Rehm. PI. 31, Fig. 12 

 The hypothecium and medullary part of the cup resemble the 

 last species in being composed of slender, hyaline hyphae closely 

 interwoven. The tissue extends to the margin where the threads 

 project as slender pili. The ectal excipular layer is truly pseudo- 

 parenchymatous, being made up of rounded cells 9-12/i in diam- 

 eter with thin, hyaline walls. This tissue extends from just below 

 the margin down the sides of the cup to the stem-like base where 



it fades out. 



Arachnopeziza aurelia (Pers.) Fuckel 



This is a pretty little species growing on leaves or rotton 

 wood. The cups are sessile on a thin white subiculum, are 

 golden-red in color, and clothed externally with reddish pili. 



There seems to be some confusion regarding the structure and 

 position of this plant. In its external characters it is clearly related 



Tap 



'/ 



a * * — — o — — * 



to include those forms which are seated on a subiculum, but which 

 possess filiform spores. Saccardo f placed this as a subgenus 



* Fuckel, p. 303. 



t Saccardo (2),^). 499. 



