122 Transactions British Mycological Society. 



The hyphae at the base of the perithecium are identical with 

 those in the stroma. The hyphae round the perithecium do not 

 exceed 2/x in diameter, are usually thin- walled, and form a 

 dense outer layer. When two or three perithecia occur in a group, 

 the hyphae of the stroma may ascend almost to their apices, 

 so that the perithecia are deeply embedded in the stroma. 

 Viewed macroscopically, isolated perithecia appear more at- 

 tenuated above than they prove to be when dissected out, owing 

 to the termination of the external tomentum some distance 

 below the apex. 



When first examined this species was thought to be identical 

 with Torrubiella tomentosa Pat., but examples of the perithecia 

 from the type of the latter show that it is distinct, though very 

 close. The perithecia are rather similar, but differ slightly in 

 shape and colour, those of T. tomentosa being ovato-conoid, 

 not attenuated, with a wall hyaline when mounted, and those 

 of T. sublintea elongated-conoid, slightly attenuated at about 

 two-thirds their height, with a pale yellow to brownish-yellow 

 wall. The conidial stages of the two are quite different. Perhaps 

 the most ready means of distinction between them is the occur- 

 rence of numerous free, clavate tips on the hyphae which cover 

 the perithecia of T. tomentosa. 



Torrubiella tomentosa Pat. in Bull. Soc. Myc. France, 

 VIII (1892), p. 133. 



Stromata thin, woolly, ochraceous. Perithecia on the stroma, 

 scattered or caespitose, ovato-conical, 0-5 mm. high, 0-3 mm. 

 diameter, pale yellow-brown, slightly darker at the apex, clothed 

 up to the apex with floccose, white (herb, specimen) tomentum; 

 apex obtuse, subtranslucent. Wall of perithecium when mounted 

 almost hyaline with traces of yellow at the apex; tomentum 

 with numerous free, clavate, verrucose tips, and rough with crys- 

 talloid masses. Asci long, capitate, cylindrical, tapering below, 

 6-8 yu. diameter, eight-spored. Part-spores cylindrical, tapering 

 slightly towards the ends, 4-7 x 0-75 /x. 



Ecuador; on a scale insect on an unknown leaf, Puento de 

 Chimbo (Lagerheim). 



In the original description of this species, it was suggested, 

 with a query, that the fungus was parasitic on a spider. Dr Pa- 

 touillard, who has kindly furnished me with perithecia from the 

 type, informs me that it is certainly parasitic on a coccid. 



The foregoing description is drawn up in part from the peri- 

 thecia examined. The original description gives the perithecia 

 as I mm. high and the part-spores 10 x i/x. The height of the 

 perithecium given above was taken from an isolated perithecium 

 examined dry; when in water under a cover glass it was 0-75 

 X 0-35 mm. The hyphae at the base of the perithecium and 

 those forming the tomentose covering are 3-4 /x diameter, with 



