ASCOMYCETES 385 



the disc gradually expanding until flat, black, shining, 

 J-iJ in. across ; flesh gelatinous, brown ; asci usually con- 

 taining only four elliptical, slightly curved, brown spores, 

 measuring 10-14 X 5-6 /*,; paraphyses brownish, curved at 

 the tip. 



Rhizina, Fries. Ascophore sessile, expanded from the 

 first, and forming a crustlike, fleshy structure, furnished 

 on the under surface with numerous fibrillose, rootlike 

 strands ; asci cylindrical, 8-spored ; spores continuous, 

 hyaline, elliptical, or fusiform ; paraphyses present. 



Rhizina inflata, Quelet. Crustlike, wavy, bay-brown, or 

 umber, margin paler, form variable, often lobed, smooth, 

 1-3 in. across, rhizoids pale, numerous ; asci cylindrical ; 

 spores 8, fusiform, tinged brown at maturity, 32-36 x 

 9-10 //. ; paraphyses septate, clavate, tips brown, mixed 

 with the paraphyses are stouter, brown, clavate bodies 

 without septa. 



Cyttaria, Berk. Ascophore obovate or subglobose, 

 fleshy, stuffed, or hollow, surface furnished with alveolae 

 lined by the hymenium, and at first covered by a veil ; 

 asci cylindrical, 8-spored ; spores continuous, hyaline, 

 elliptical, smooth ; paraphyses numerous. 



Cyttaria darwinii, Berk., Linn. Trans., xix. p. 37. 

 Whitish, globose, 2-4 cm. diameter, at first even, then 

 alveolate, always stuffed; asci 150-160X10 /x ; spores 8, 

 uniseriate, elliptical, ends obtuse, smooth, 14-16x8 p. 



Fischer states that spermogonia are immersed in the 

 lower part of the ascophore, containing elliptical conidia 

 2X1-5 /^. 



Cyttaria hookeri, Berk., Hook., Fl. Antarct., p. 452. 

 2 B 



