GONATOBOTBYS NEMATOGONIUM. 333 



Gonatobotrys simplex. Corda. 



"White ; tufts lax, minute, downy ; fertile hyphae simple, 

 long, erect, furnished with many nodes or swollen portions, 

 septate, fertile nodes globose ; conidia hyaline, subglobose, 

 base apiculate. 



Gonatobolrys simplex, Corda, PrachtfL, t. v. ; Sacc., Syll., 

 n. 863. 



On decaying fruit of Tamus ; on hawthorn brandies ; on 

 old perithecia of Vnlsa, &c. 



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 ; conidia elliptic-oblong, 

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

 slightly tinged yellow. 



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

 Sacc., Syll., iv. n. 864. 



On decayed wood, fungi, &c. 



NEMATOGONIUM. Desm. (fig. 13, p. 274.) 



Sterile hyphae creeping, fertile erect, conspicuously 

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

 fertile jointa globose, smooth; conidia elliptical, continuous. 



Nematogonium, Desmazieres, Ann. So. Nat., 1834, ii. p. 69; 

 Sacc., Syll., iv. p. 170. 



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

 erect hyphae interspersed with spherical joints bearing the 

 conidia in loose clusters. 



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

 Tufts orange-brown minutely velvety, often considerably 

 effused; sterile hyphae very slender, septate, creeping; 

 fertile hyphae erect, jointed, sterile joints inflated at both 

 ends, with conidia-bearing globose cells interposed hero and 

 there ; conidia obovate, base acute, 15 X 8-10 /x, with an 

 orange tinge, sessile, 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. 



