350 



MONOGRAPH OF TIIE LABOULBEXIACEyE. 



fasciculata it is impossible to say until we have more definite and reliable information concerning 

 Peyritsch's species ; but although his description is quite worthless, the two could not be united 

 if one can trust his figures, by reason of the wholly different form of the appendages. 



Laboulbenia fasciculata Peyritsch. 



Sitz. d. Wien. Acad. Vol. LXVIII, p. 248, Plate I, figs. 8-9 ; Sorokin, Veg. Paras. Vol. II, p. 416, Plate XXXII, fig. 757 ; Win- 

 ter Pilze Deutsch. II, p. 922; Berlese Malpighia, III, p. 56; Saccardo Sjlloge, Vol. VIII, p. 911. 



"Pale yellowish brown. Appendages numerous, clustered, superposed, colorless, about as 

 long as the perithecium." Length, 370 p. 

 On Chlcenius vestitus F., Austria. 



This species corresponds essentially in structure to the preceding, except that the appendages 

 appear to be different in character and much shorter. As already mentioned, the two may prove 

 to be identical. A single immature example of what appears to be the same form was found on 

 a European specimen of Omophron limbatum F., but is not sufficiently perfect either to figure or 

 describe. 



Laboulbenia armillaris Berlese. 



Malpighia, Vol. Ill, p. 52 (1889), Plate II, figs. 1-6; Saccardo Sylloge, Vol. VIII, p. 911. 



" Pale brownish ; with a clavulate stipe, bicellular below, above composed of a number of 

 cells disposed in two longitudinal series, the one bearing the perithecium two-celled, rather short, 

 the other four to six-celled, bearing the pseudoparaphyses, attenuated at its base and terminat- 

 ing in a black, opaque, coriaceous obconical piece, 21 x 14 fi, adhering very firmly to the host by 

 its pointed base, 100 fi long, pale yellowish, filled with granular protoplasm; perithecium sub- 

 cylindrical or long-ovoid, brown, terminated by a black neck furnished with a pore and a 

 black appendage, having a few black rings, at its apex, 110 x 36-40 /u,; pseudoparaphyses dicho- 

 tomous or laterally almost sympodially branched, terminated by two branchlets pointed at their 

 tips and resembling the claw of a scorpion, divided at the base of the branches by black rings 

 or discs rather thick and coriaceous, very pale yellowish, extending to the tip of the peri- 

 thecium. 



" On Antennophorus caputearabis, Paraguay. Total length, 290-320 x 36-40 yu." 



The above description is quoted from the paper of Berlese cited, since the species is unknown 

 to me. As far as can be determined from the published figure and description the species would 

 seem to be related to L. variabilis through the multicellular insertion of its appendages. The 

 blackened septa of the latter can hardly be considered very distinctive since they occur in 

 numerous species and the furcate terminal branchlets may very probably be antheridia. The 

 " appendage " below the tip of the perithecium on the inner side is undoubtedly the old base of 

 the trichogyne (cf. PI. XXI, fig. 12). 



The chief interest of the species lies in the fact that it is the only form known to be parasitic 

 on one of the Acarini. 



