Studies in Ent.mr^ef.cus Furgi. T. Peich. 123 



only slightly thickened walls, strongly yerrucose with minute 

 granules, and bear a large number of free clay ate ends, up to 

 5/x diameter, also strongly yerrucose. These hxphae bear 

 spherical or oyal. yerrucose conidia, 4-6 x 3-5^, laterally, in 

 the same manner as that figured for T. ochracea. The wall of the 

 perithecium. by transmitted hght, appears to be studded rather 

 closely \\ith irregular crystalloid bodies, which are really situated 

 on the external mjcehum; the}* are not soluble in h^'drochloric 

 acid. 



TorrTibiella barda Fetch in Ann. Perad. ^^I (1922), p. 324. 



S:r^::-iia up to 3 mm. diameter, compact, pul\"inate. lacunose, 

 sometimes with a broad, thin h\-f>othallus. orange-yellow, egg 

 yellow, or becoming whitish, more or less tomentose but with 

 the surface layer matted and tending to become membranous 

 and glabrous. 



Perithecia round the base of the pul\inate part of the stroma, 

 sohtar\- or clustered, usually surrounded by a weft of h\-phae 

 of the same colour as the stroma so that only the ostiola project. 

 Isolated perithecia conoid, yellow, with an outer coat of inter- 

 woyen yellow h^'phae, o-i mm. thick, extending nearly to the 

 apex, which is red-bro\Mi and conoid; after remoyal of the 

 tomentose coat, the perithecia are conoid, 0-75 mm. high, 

 0'35 mm. diameter, suddenly expanding aboye into a thickened 

 capitate apex : wall of perithecium thick ; by transmitted hght 

 the wall of the perithecium is yellow and the thickened apex 

 orange or reddish-yellow. Asci long, cylindrical, capitate, eight- 

 spored, 6-7 /u diameter; part-spores cyhndric, becoming some- 

 what narrow-oyal \%"ith obtuse ends, 4-7 x 1-5 /*. 



Chili; on an Ale\Todid on an undetermined leaf, Corral, 

 December 1905, R. Thaxter (Plate II, fig. S). 



In some instances all the perithecia are embedded in the 

 stroma, which then resembles a Hypocrea, dotted with red- 

 b^o^\■n ostiola. The structure of the perithecium is quite distinct 

 from that of the other species of Torruhiella found on scale 

 insects. At first sight, it appears regularly conoid, tomentose 

 below, glabrous at the apex. The tomentose layer, howeyer, 

 can be easily peeled off. and it is then found that the wall of the 

 perithecium suddenly expands at right angles at the upper limit 

 of the tomentum, so that a thick soKd apex is formed. 



The h\'phae in the tomentose layer on the perithecium are 

 thick- wailed, almost sohd, closely interwoyen; this layer is 

 yellow, but becomes pale or white internally. The M'phae of 

 the stroma are usually stout, generally 4-5 ^ diameter, but with 

 some 2-3 /Li diameter, thick-walled, flexuose, encrusted with 

 granules, greenish yellow to hyaline; they tend to fuse into a 

 continuous superficial sheet. . 



The t\'pe of Acremonium arauc^num Speg. has been kindly 



