REPORT OF THE SOCIETY 83 



4.4-6.1 u. While these measurements fall fairly well within the limits given 

 for G, the 3- and 4-septate types average higher, as the following table shows : 



3 — septate 4 — septate 



No. F 35.6 X 4.3 u 43.6 x 4.6 u 



No. G 32.7 X 3.6 u 36.2 x 4.6 u 



No. G produced typical conidia of the Eiegans type on boan, Uschinsky's 

 and Richard's agars, and on potato plugs, while in 3. F. conglutinans Woll. — 

 Wollenweber (16: 1913). This species differs from F orthoceras in the absence 

 of a wine red colour on rice, No. H has all the typical characters of this species, 

 namely, 3-septate spores measuring, 24.5-42.0 x 2.6-4.4 u, averaging 32.7 x 3.9 

 u, 4-septate forms, (observed only on bean agar), averaging 50.0 x 4.4 u. The 

 production of aerial mycelium is very scanty and, generally speaking, the organ- 

 ism appears to be lacking in vigour probable by reason of the length of time it 

 has been carried in culture. 



Section Gibbosum. 



4. F. gibbosum A. & W. — Appel and Wollenweber (1 1910), Sherbakoff 

 (31: 1915). Diagnosis-conidia often with hyperbolic dorsal curve, breaderin 

 middle, long narrow apex, pedicellate, typically 5-septate, 40.0-46.0 x 4. 4-4.7 u, 

 (averaging 41.6 x 4. 6 u), also 0- to 7-septate, in minute sporodochia or 

 spreadin over the mycelium singly, hyaline to light pinkish cinnamon; chla- 

 mydospores intercalary: short fine aerial mycelium present; zo nation; substra- 

 tum onpotato agar pale flesh to cinnamon. 



No. K. differs from this in the following respects: — conidia typically 3-to 

 5-septate, the fomer measuring 17.5-38.5 x 3.5-6.1 u, (averaging 28.1 x 4.4. u), 

 and the latter, 28.0-57.5 x 3.5-6.1 u, (averaging 43.3 x 4.8 u); colour on potato 

 agar golden brown. In other characters No. K is practically identical with 

 F. gibbosum and it may possibly be variety occurring on Lupinus. 



5. F. Lanceolatum Pratt — Pratt (10: 1918) gives the following diagnosis of 

 this species; — conidia typically in pseudopionnotes, also in aerial mycelium 

 and sporodocdhia, from nearly straight to strongly curve, pedicellate, typi- 

 cally 3 — to 5-septate, rarely higher, 3-septate measuring 22,0 — 52.0 x 2.5 — 5.0 u, 

 (34.0 X 3.5 u), 4 septate, 22.0—60.0 x 2.8—5.0 u, (40.0 x 4. 8 u), 5 septate, 36.0— 

 70.0 X 2.8 — 5.7 u, (48.0 x 4.1 u); scanty aerial mycelium, sporodochia and pseu- 

 dopionnotes ochraceous orange at first, later becoming reddish; substratum on 

 rice yellow to dark brown; chlamydospores single and in chains; isolated from 

 the soil. 



No N differs from this in certain points: — the conidial measurements are : 

 3 septate, 21.0—45.0 x 2.6—6.1 u, (31.6 x 4.3 u), 4 septate, 28.0—49.0 x 2.6—6. 1 



