Studies in Entomogenous Fungi. T. Petch. 165 
extending above the disc and forming an incurved margin; disc 
composed of branched conidiophores; conidia hyaline, fusarioid, 
multiseptate. 
Discofusarium tasmaniense (McAlp.) Petch; Microcera tas- 
mantensis McAlp., Agric. Jour. Victoria, 11 (1904), pp. 646-648; 
Microcera Mytilaspis McAlp., loc. cit. 
The conidial stage of Calonectria coccidophaga Petch; see 
Dp. 161. 
TETRACRIUM. 
Tetracrium coccicolum v. Hohnel, Fragm. zur Myk., xu, 
p. 30 (1911). : 
The conidial stage of Podonectria coccicola (E. and E.) Petch; 
see p. I6I. 
Tetracrium Aurantit P. Henn., Hedwigia, xi (1902), p. 116. 
The conidial stage of Podonectria Aurantit (v. H.) Petch; 
See p= 102. 
Tetracrium echinatum Petch, n.sp. 
The conidial stage of Podonectria echinata Petch; see p. 162. 
Tetracrium rectisporum (Cke. and Massee) Petch; Microcera 
rectispora Cke. and Massee, Grevillea, XVI, p. 4 (1888). 
The type specimen does not contain sporodochia or perithecia, 
but only scattered, detached conidial clusters of some Tetra- 
crium, 
EXPLANATION OF PLATES. 
PraTeE III. 
Fig. 1. Sphaerostilbe aurantiicola, conidial (Microcera) stage, on Aspidiotus, 
Ceylon specimen. x I5. 
Fig. 2. Sphaerostilbe aurantiicola, conidial (Microcera) stage, sessile form, on 
Aspidiotus, Ceylon specimen. x Io. 
Fig. 3. Sphaerostilbe aurantiicola, perithecial stage, on Aspidiotus, Ceylon 
specimen. x 12. 
Fig. 4. Sphaerostilbe aurantiicola, perithecium, Ceylon specimen. x 60. 
Fig. 5. Sphaerostilbe aurantiicola, old conidial (Microcera) stage after most of 
the conidia have disappeared, showing the empty sheath at the apex, 
specimen from Formosa, on a scale on apple. x 12. 
Fig. 6. Sphaerostilbe coccidophthora, perithecium, Ceylon specimen. x 60. 
Fig. 7. Sphaerostilbe flammea, perithecial stage, ev herb. Spegazzini. x 15. 
Fig. 8. Sphaerostilbe flammea, conidial (Microcera) stage, ex herb. Spegazzini. 
x 15. 
Fig. 9. Pseudomicrocera Henningsti, on Aonidia, stroma circumferential, the 
central area of the scale not covered, sporodochium arising from the inner 
margin of the stroma, dry weather form, Ceylon. x 12. 
Fig. 10. Pseudomicrocera Henningsii, on Aonidia, stroma confined to one 
side, dry weather form, Ceylon. x 12. 
Fig. 11. Pseudomicrocera Henningsii, sporodochium with well-developed 
parenchymatous base, specimen from Florida. x 15. 
Fig. 12. Pseudomicrocera Henningsii, on Aspidiotus, stroma marginal, base of 
sporodochium feebly developed, Ceylon. x 20. 
Fig. 13. Nectria diploa, perithecia, with effete sporodochia, Ceylon, x 50. 
Fig. 14. Nectria barbata, perithecium, Ceylon. x 80. 
M.S. Il 
