GONATOBOTUYS— NEMATOGONIUM. 333 



Gonatobotrys simplex. Corda. 



AVhite ; tufts lax, miimte, downy ; fertile liyi>liac simple, 

 long, erect, furnished with many nodes or swollen |)ortions, 

 septate, fertile nodes globose ; eonidia hyaline, subglobose, 

 base apiculate. 



Gonatobotrys simjjJcXy Corda, Prachtfl., t. v. ; Sacc, Syll., 

 n. 863. 



On decaying fruit of Tamus ; on hawthorn branches; on 

 old perithecia of VaJsa, etc. 



Gonatobotrys flava. Bon. (fig. 12. p. 274.) 

 Tufts, minute, white then yellowish ; fertile hyphae erect, 

 simple, here and there inflated, the inflated portions covered 

 with spicules spirally arranged ; eonidia ellii)tic-oblong, 

 base subapiculate, 18-25 X 10-12 /x, at first colourless then 

 slightly tinged yellow. 



Gonatobotrys fiava, Bonorden's Hdbk., p. 105, f. 22, 23 ; 

 Sacc, Syll., iv. n. 864. 



On decayed wood, fungi, &c. 



KEMATOGONIUM. Dosm. (fig. 13, p. 274.) 



Sterile hyphae creeping, fertile erect, conspicuously 

 jointed, sterile joints thickened at both ends (bone-shaped j, 

 fertile joints globose, smooth ; eonidia elliptical, continuous. 



Nematogonmm, Desmazieres, Ann. Sc. Nat., 1834, ii. p. 69; 

 Sacc, Syll., iv. p. 170. 



Recognised by the thigh-bone-shaped sterile joints of the 

 erect hyphae interspersed with spherical joints bearing the 

 eonidia in loose clusters. 



Nematogonium aurantiacum. Desm. (fig. 13, p. 274.) 

 Tufts orange-brown minutely velvet}', often considerably 

 eifused ; sterile hyphae very slender, septate, creei^ing ; 

 fertile hyphae erect, jointed, sterile joints inflated at both 

 ends, with conidia-bearing globose cells interposed here and 

 there ; eonidia obovate, base acute, 15 X 8—10 /x, with an 

 orange tinge, se&sile, arranged on the globose cells in loose 

 clusters. 



Nematogonium aurantiacum, Desm., Ann. Sci. Nat.. 1834, ii. 

 t. 11, f. 1 ; Sacc, Syll., iv. n. 867. 

 On rotten wood and bark. 



